{"id":382,"date":"2021-02-17T16:37:04","date_gmt":"2021-02-17T16:37:04","guid":{"rendered":"http:\/\/scrutineer.co.kr\/wordpress\/?p=382"},"modified":"2021-02-18T03:22:45","modified_gmt":"2021-02-18T03:22:45","slug":"%eb%aa%a8%eb%8d%98-%ec%9e%90%eb%b0%94-%ec%9d%b8-%ec%95%a1%ec%85%98-9%ec%9e%a5","status":"publish","type":"post","link":"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/2021\/02\/17\/%eb%aa%a8%eb%8d%98-%ec%9e%90%eb%b0%94-%ec%9d%b8-%ec%95%a1%ec%85%98-9%ec%9e%a5\/","title":{"rendered":"\ubaa8\ub358 \uc790\ubc14 \uc778 \uc561\uc158 9\uc7a5"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\uc791\ub144 \uc774\ub9d8\ub54c \ubaa8\ub358 \uc790\ubc14 \uc778 \uc561\uc158 9\uc7a5\uc744  \ub9ac\ubdf0\ud588\uc5c8\ub294\ub370 \ub2e4\uc2dc \ubcf4\ub2c8 \uc0c8\ub86d\ub124\uc694.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">9\uc7a5?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \uc7a5\uc5d0\uc11c \ub2e4\ub8e8\uace0\uc790 \ud558\ub294 \ub0b4\uc6a9\uc740 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\ub78c\ub2e4\uc640 \uc2a4\ud2b8\ub9bc\uc744 \ubc30\uc6b0\uae34 \ubc30\uc6e0\ub2e4<\/li><li>\ub78c\ub2e4\uc640 \uc2a4\ud2b8\ub9bc\uc744 \uc0ac\uc6a9\ud558\uba74 \uac00\ub3c5\uc131\uc774 \uac1c\uc120 \ub41c\ub2e4\ub294 \uac83\ub3c4 \uc54c\uace0 \uc788\ub2e4<\/li><li>\uadf8\ub7fc, HOW? \ub108\ub313\uc904\uc9dc\ub9ac \ucf54\ub4dc\uc57c \uc608\uc81c\uc5d0\uc11c \uc218\uc5c6\uc774 \ubcf4\uc558\uc9c0\ub9cc&#8230;.\uc2e4\ubb34 \ucf54\ub4dc\ub294?<\/li><li>\ub530\ub77c\uc11c, 9\uc7a5\uc740 \uadf8 &#8216;HOW&#8217; \uc5d0 \ub300\ud55c \ub0b4\uc6a9\uc744 \ub300\ud45c\uc801\uc778 \ub514\uc790\uc778 \ud328\ud134\uc5d0 \uc785\uac01\ud558\uc5ec \uc124\uba85\ud558\uaca0\ub2e4<ul><li>\uc804\ub7b5\ud328\ud134<\/li><li>\ud15c\ud50c\ub9bf \uba54\uc18c\ub4dc<\/li><li>\uc635\uc800\ubc84 \ud328\ud134<\/li><li>\uc758\ubb34\uccb4\uc778 \ud328\ud134<\/li><li>\ud329\ud1a0\ub9ac \ud328\ud134<\/li><\/ul><\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ubb50 \uc774\ub7f0 \uc11c\ub450\ub97c \ud1b5\ud574 \uae00\uc744 \uc791\uc131\ud558\uc600\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\uc81c 9\uc7a5\uc744 \ubcf4\uba74\uc11c \uc9c4\uc9dc\ub85c \uadf8\ub807\uac8c \ub9ac\ud329\ud1a0\ub9c1\uc744 \ud560 \uc218 \uc788\ub294\uc9c0 \uc5c6\ub294\uc9c0 \ud55c\ubc88 \uc54c\uc544\ubcf4\ub3c4\ub85d \ud558\uc790.<\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:25px\">\uac00\ub3c5\uc131 \uac1c\uc120\uc740 \uc0dd\ub7b5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">1~8\uc7a5\uae4c\uc9c0 \ub9ac\ubdf0\ub97c \ud558\uba74\uc11c \ub108\ubb34 \ub9ce\uc774 \ud55c \uc791\uc5c5\ub4e4&#8230;<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\uba85\ub839\ud615 \ub370\uc774\ud130 \ucc98\ub9ac(\ubc18\ubcf5\ubb38, \ud544\ud130\ub9c1 \ub4f1\ub4f1\ub4f1\ub4f1)\ub97c \uc2a4\ud2b8\ub9bc\ucc98\ub9ac<\/li><li>\uc775\uba85 \ud074\ub798\uc2a4\ub97c \ub78c\ub2e4 \ud45c\ud604\uc2dd\uc73c\ub85c<ul><li>\uac04\ub2e8\ud55c \ub78c\ub2e4 \ud45c\ud604\uc2dd\uc740 \uba54\uc18c\ub4dc \ucc38\uc870\ub85c\ub3c4 \ubcc0\uacbd<\/li><\/ul><\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">9\uc7a5\uc5d0 \uc0c8\ub85c\uc6b4 \ub0b4\uc6a9\uc5d0 \uc9d1\uc911\ud558\uace0\uc790 \uc0dd\ub7b5\ud55c \uac83\uc774\uc9c0, \uc808\ub300\ub85c \uc591\uc774 \ub9ce\ub2e4\uac70\ub098 \uadc0\ucc2e\uc544\uc11c\uac00 \uc544\ub2d8&#8230;&#8230;&#8230;..<\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ucf54\ub4dc\uc758 \uc720\uc5f0\uc131 \uac1c\uc120<\/h2>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:25px\">\uc870\uac74\ubd80 \uc5f0\uae30 \uc2e4\ud589 (feat.\ubc88\uc5ed \uadf9\ud610)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ud55c 30\ubd84\ub3d9\uc548 \uc774 \ubb38\ub2e8\uc744 \uc77d\uace0 \ub610 \uc77d\uc5b4\ubd24\ub2e4&#8230; \uc77c\ub2e8 \ud55c\uae00\ub85c \uac80\uc0c9\ud574 \ubcf4\uba74 \uc798 \uc548\ub098\uc624\uace0, \ub098\uc624\ub354\ub77c\ub3c4 \uadf8\ub0e5 \ucc45\uc5d0 \uc788\ub294 \uad6c\ubb38\uc744 \uadf8\ub300\ub85c \ubcf5\ubd99\ud55c \ub290\ub08c(\uc774\ud574\ubd88\uac00) \uadf8\ub798\uc11c \uac4d \uc601\uc5b4\ub85c deferred execution\uc5d0 \ub300\ud574 \uac80\uc0c9\uc744 \ud574 \ubd24\ub2e4&#8230;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ub2e8 \uacb0\ub860 : \ubb54 \uc18c\ub9b0\uac00 \uc2f6\uc740\ub370 \ucc45 \ubc88\uc5ed\uc774 \uc798\ubabb\ub41c \uac83 \uac19\uc740 \ub290\ub08c\uc774 \uac15\ub825\ud558\uac8c \ub4e0\ub2e4.\u314b\u314b argument passing \uc744 \ud560 \ub54c, &#8216;\ucf54\ub4dc \uadf8 \uc790\uccb4(?)&#8217;\ub97c \ub118\uae30\uc9c0 \ub9d0\uace0 &#8216;\ud568\uc218&#8217; \ub97c \ub118\uaca8\uc11c, \uc2e4\ud589 \uc8fc\uccb4\ub97c caller\uac00 \uc544\ub2cc callee\uc5d0\uac8c \uc704\uc784\ud55c\ub2e4\ub294 \ub2e8\uc21c\ud55c \uac1c\ub150\uc778\ub4ef.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc608\uc81c\ub97c \ubcf4\uc790<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">if (logger.isLoggable(Log.FINER)) {\n  logger.finer(\"Problem: \" + generateDiag());\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ub2e8 \uc774 \ucf54\ub4dc\uac00 \uc880 \ubb38\uc81c\uac00 \ub9ce\ub2e4\ub294 \uac74 \ud655\uc2e4\ud558\ub2e4<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\ub9e4 \uc2e4\ud589\uc2dc\ub9c8\ub2e4 if\ub85c \uc778\ud55c \ubd84\uae30\ub97c \ud1b5\ud574 \ub85c\uae45\uc774 \uac00\ub2a5\ud55c\uc9c0,\uadf8\ub807\uc9c0 \uc54a\uc740\uc9c0 \uccb4\ud06c\ub97c \ud55c\ub2e4<\/li><li>logger \uac1d\uccb4 \uc790\uccb4\uac00, isLoggable \uba54\uc18c\ub4dc\ub97c \ud1b5\ud574 \ud638\ucd9c\ub2f9\ud568(?)\uc73c\ub85c\uc368 logger\uc758 \uc0c1\ud0dc\uac00 \ub178\ucd9c\ub41c\ub2e4 <\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub807\uac8c \ud574\uc11c \uc694\ub807\uac8c \uc218\uc815\uc744 \ud55c\ub2e4.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">logger.log(Level.FINER, \"Problem:\" + generateDiag());<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">if\ubb38\ub3c4 \uc81c\uac70\ud558\uace0, isLoggable\uc744 \ud638\ucd9c\ub2f9\ud558\uc9c0 \uc54a\uace0 \ub85c\uadf8\ub97c \ud638\ucd9c\ud560\uc9c0 \ub9d0\uc9c0 \uacb0\uc815\uc9d3\ub294 \ucf54\ub4dc\uac00 log() \uba54\uc18c\ub4dc \uc548\uc5d0 \ucea1\uc290\ud654\ub97c \ub428\uc73c\ub85c\uc368 logger\uc758 \uc0c1\ud0dc\uac00 \ub178\ucd9c\ub418\uc9c0 \uc54a\ub294\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \uc774\ud6c4\uc5d0 \ubb38\uc81c\uc758 \ubc88\uc5ed\uc774 \uc2dc\uc791\ub418\ub294\ub370<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"719\" height=\"144\" src=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2021\/02\/image-2.png\" alt=\"\" class=\"wp-image-385\" srcset=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2021\/02\/image-2.png 719w, https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2021\/02\/image-2-300x60.png 300w\" sizes=\"auto, (max-width: 719px) 100vw, 719px\" \/><figcaption>\ub124? \uc778\uc218\ub85c \uc804\ub2ec\ub41c \uba54\uc2dc\uc9c0 \uc218\uc900\uc5d0\uc11c&#8230;.? \ud3c9\uac00&#8230;.? \ubb50\ub77c\uad6c\uc694?<\/figcaption><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\ud63c\ub780\ud558\ub2e4&#8230;.\ub290\ub08c\uc801\uc778 \ub290\ub08c\uc73c\ub85c \uc800 &#8216;\uc218\uc900&#8217;\uc774\ub780 \ub2e8\uc5b4\ub294 &#8216;\ub85c\uadf8 \ub808\ubca8&#8217; \uc744 \ub73b\ud558\ub294 level\uc744 \uc798\ubabb \ubc88\uc5ed\ud55c \uac83\uc77c\uac70\uace0&#8230;&#8230;&#8217;\ud3c9\uac00&#8217; \ub77c\ub294 \ub2e8\uc5b4\ub294 &#8216;evaluate&#8217;\uc744 \ubaa8\ud638\ud558\uac8c \ubc88\uc5ed\ud55c \uac83\uc778\uac8c \ubd84\uba85\ud558\ub2e4 \u314b\u314b\u314b\u314b\u314b\u314b (&#8216;\uc5f0\uc0b0,\uacc4\uc0b0&#8217; \uc815\ub3c4\ub85c \ubc88\uc5ed\ub418\uc5c8\ub2e4\uba74 \uc774\ub807\uac8c \ud5e4\uba54\uc9c0 \uc54a\uc558\uc744\ub4ef-_-)<\/p><cite>\ubc88\uc5ed\uac00\uac00 \ub9c8\uac10\uc2dc\uac04\uc5d0 \ucad3\uaca8\uc11c \ubc88\uc5ed\uae30\ub97c \ub3cc\ub838\ub098\ubcf4\ub2e4.<\/cite><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">&#8216;log() \uba54\uc18c\ub4dc\uc758 \ub450\ubc88\uc9f8 argument\uac00, \ub85c\uadf8\ub808\ubca8\uc774 FINER\uac00 \uc544\ub2cc \uc0c1\ud669\uc5d0\uc11c\ub3c4 \uc528\uc798\ub370\uae30\uc5c6\uc774 \uc2e4\ud589\ub41c\ub2e4 \uc774\ub9d0\uc774\uc57c&#8217;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub7ec\ub2c8\uae4c, \uc774 \ub9d0\uc774 \ubb34\uc2a8 \ub73b\uc774\ub0d0 \ud558\uba74, \ub85c\uadf8 \ub808\ubca8\uc774 OFF\uc0c1\ud0dc\uc778\ub370, \ub2e4\uc74c\uacfc \uac19\uc774 \ucf54\ub4dc\ub97c \uc218\ud589\ud558\uba74<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">for (int i = 0 ; i &lt; 99999 ; i++) {\n  logger.log(Level.FINER, \"Problem:\" + generateDiag());\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc88b\ub358 \uc2eb\ub358 \uc5b4\uca0c\ub4e0 logger\uc758 log()\ub294 \ud638\ucd9c\uc774 \ub418\uc5b4\uc57c \ud558\uae30\uc5d0, \ub85c\uadf8 \ub808\ubca8\uc774 OFF\ub77c\ub3c4, 99999\ubc88\uc758 log() \ud638\ucd9c \uc804 \ud544\uc218 \uacfc\uc815\uc778 &#8220;Problem:&#8221; + generateDiag() \uad6c\ubb38\uc774 \uc2e4\ud589\ub41c\ub2e4\ub294 \ub73b\uc774\ub77c\ub294\uac70\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud639\uc2dc \ub0b4\uac00 \uc798\ubabb \uc774\ud574\ud588\ub098 \uc2f6\uc5b4\uc11c, \uc601\uc5b4\ub85c &#8216;deffered execution&#8217; \uc744 \uac80\uc0c9\ud574 \ubd24\ub2e4. <a href=\"https:\/\/www.informit.com\/articles\/article.aspx?p=2171751\">https:\/\/www.informit.com\/articles\/article.aspx?p=2171751<\/a> \uc758 3.1. \ud56d\ubaa9\uc744 \ucc38\uace0\ud574 \ubcf4\uc790.\u314b\u314b<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"621\" height=\"682\" src=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2021\/02\/image-3.png\" alt=\"\" class=\"wp-image-386\" srcset=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2021\/02\/image-3.png 621w, https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2021\/02\/image-3-273x300.png 273w\" sizes=\"auto, (max-width: 621px) 100vw, 621px\" \/><figcaption>\ub2f9\uc2e0\uc774 \uc601\uc54c\ubabb\uc774\uba74 \uccab \ubb38\uc7a5\ub9cc \uc77d\uc5b4\ub3c4 \ub208\uce58\ucc4c \uc218 \uc788\uc744 \uac83\uc774\ub2e4.(\uadfc\ub370 \ub098\ub3c4 \uc601\uc54c\ubabb\uc784)<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub7ec\ub2c8\uae4c, log() \uc758 \ub450\ubc88\uc9f8 argument\ub97c \ucf54\ub4dc\uac00 \uc544\ub2cc \ud568\uc218 \uadf8 \uc790\uccb4\ub85c passing\uc2dc\ucf1c\uc11c,  caller\uac00 \uc544\ub2cc, callee\uac00 \uc2e4\ud589\ud560\uc9c0 \ub9d0\uc9c0 \uc5ec\uc9c0\ub97c \ub0a8\uaca8\uc8fc\uac8c \ud558\ub294 \uae30\ubc95\uc774 &#8216;\uc870\uac74\ubd80 \uc5f0\uae30 \uc2e4\ud589&#8217; \uc774\ub77c\ub294 \ub73b\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc554\ud2bc \uadf8\ub798\uc11c \uc790\ubc148\ubd80\ud130\ub294 \ub450\ubc88\uc9f8 argument\ub97c String\ubfd0\ub9cc\uc774 \uc544\ub2cc Supplier\ub3c4 \uc81c\uacf5\ud574\uc11c \ub2e4\uc74c\uacfc \uac19\uc774 \ud3b8-\uc548 \ud558\uac8c \ub78c\ub2e4\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uac8c \ud574 \uc8fc\uc5c8\ub2e4\uace0 \ud55c\ub2e4. \uac13\uc790\ubc14.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">logger.log(Level.FINER, () -> \"Problem:\" + generateDiag());<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">p.s : C\uc5d0\uc11c \ud568\uc218\ud3ec\uc778\ud130\ub098, js\uc5d0\uc11c \uc774\ubca4\ud2b8 \ud578\ub4e4\ub9c1\uac19\uc740\uac70 \uc368\ubcf8 \uacbd\ud5d8 \uc788\uc73c\uba74 \uc27d\uace0 \uc775\uc219\ud55c \uac1c\ub150..<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:25px\">\uc2e4\ud589 \uc5b4\ub77c\uc6b4\ub4dc<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ub9e4\ubc88 \ubc18\ubcf5\ub418\ub294 \uc900\ube44\/\uc885\ub8cc \uacfc\uc815\uc744 \ub78c\ub2e4\ub85c \ubcc0\ud658\ud558\ub294 \uae30\ubc95. 3\uc7a5\uc5d0\uc11c \uc774\ubbf8 \ud55c\ubc88 \ub2e4\ub8ec \ud328\ud134\uc774\uace0 \ucd94\uac00\uc801\uc778 \uc124\uba85\uc774 \uc5c6\ub2e4. \uc0dd\ub7b5..<\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ub514\uc790\uc778 \ud328\ud134!!!<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ub514\uc790\uc778 \ud328\ud134\uc744 \ud1b5\ud574 \ud574\uacb0\ud558\ub358 \ubb38\uc81c\ub4e4\uc744, \ubaa8\ub358 \uc790\ubc14\uac00 \uc81c\uacf5\ud574 \uc8fc\ub294 \ub78c\ub2e4\ub85c \uac04\ub2e8\ud558\uac8c \uad6c\ud604\ud560 \uc218 \uc788\ub2e4!!!(\uace0\uc694?)<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\uc804\ub7b5\ud328\ud134<\/li><li>\ud15c\ud50c\ub9bf \uba54\uc18c\ub4dc \ud328\ud134<\/li><li>\uc635\uc800\ubc84 \ud328\ud134<\/li><li>\uc758\ubb34 \uccb4\uc778 \ud328\ud134<\/li><li>\ud329\ud1a0\ub9ac \ud328\ud134<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ud558\ub098\ud558\ub098\uc529 \ud6d1\uc5b4\ubcf4\ub3c4\ub85d \ud558\uc790.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:25px\">\uc804\ub7b5\ud328\ud134<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc6b0\uc120 \uc804\ub7b5 \ud328\ud134\uc774\ub77c \ud568\uc740..<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub9d0 \uadf8\ub300\ub85c &#8216;\uc804\ub7b5(strategy)&#8217;\uc5d0 \ud574\ub2f9\ud558\ub294 \ub3d9\uc791 \uadf8 \uc790\uccb4\ub97c \uc778\uc2a4\ud134\uc2a4\ud654 \uc2dc\ucf1c\uc11c, \ud544\uc694\uc2dc\uc5d0 \uc801\uc808\ud55c \ub3d9\uc791\uc744 \ub04c\uc5b4\ub2e4 \uc4f0\ub294 \uae30\ubc95\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ucc45 \uc608\uc81c\ub791\uc740 \uc880 \ub2e4\ub974\uac8c, \uc791\ub144\uc5d0 \ub300\ucda9 \uc9c1\uc811 \ub9cc\ub4e0 \uc608\uc81c\ub97c \ud1b5\ud574 \uc54c\uc544\ubcf4\uc790&#8230;\u314b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\uac74 \uc804\ub7b5\ud328\ud134\uc774 \uc544\ub2cc \uc77c\ubc18\uc801\uc778 \ucf54\ub4dc\ub2e4.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public interface Earphone {\n    public void listen();\n}\n \n \npublic class WireEarphone implements Earphone {\n    public void listen() {\n        plugin(); \/\/ \ub2e8\uc790\ub97c \ub514\ubc14\uc774\uc2a4\uc5d0 \uaf42\uc74c\n        play(); \/\/ \uc7ac\uc0dd\n    }\n}\npublic class CodelessEarphone implements Earphone {\n    public void listen() {\n        bluetooth2(); \/\/\ube14\ub8e8\ud22c\uc2a4 2 \uc5f0\uacb0\n        play(); \/\/\uc7ac\uc0dd\n    }\n}\npublic class AirpodEarphone {\n    public void listen() {\n        bluetooth4(); \/\/\ube14\ub8e8\ud22c\uc2a4 4 \uc5f0\uacb0\n        play(); \/\/\uc7ac\uc0dd\n    }\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">&#8216;\uc774\uc5b4\ud3f0&#8217;\uc774\ub77c\ub294 \ubb3c\uac74\uc744 \uac1d\uccb4\ud654 \ud55c \uac83 \uae4c\uc9c0\ub294 \uc88b\uc740\ub370, &#8216;\ub4e3\ub294 \ub3d9\uc791(\uc804\ub7b5!!!)&#8217; \uc744 \uac1d\uccb4\ud654 \ud55c\uac83\uae4c\uc9c0\ub294 \uc0dd\uac01\uc744 \ubabb\ud588\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub530\ub77c\uc11c, &#8216;\ub4e3\ub294 \ub3d9\uc791(\uc804\ub7b5)&#8217; \uadf8 \uc790\uccb4\ub97c \uac1d\uccb4\ud654 \ud574 \ubc84\ub9ac\uba74 \uc804\ub7b5 \ud328\ud134\ub300\ub85c \uad6c\ud604\ub418\uc5c8\ub2e4\uace0 \ubcfc \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public interface ListenStrategy {\n    public void listen();\n}\npublic class PluginStrategy implements ListenStrategy { \/\/ \ub2e8\uc790\ub97c \ub514\ubc14\uc774\uc2a4\uc5d0 \uaf42\ub294 \ud589\uc704\ub97c \uac1d\uccb4\ud654\n    public void listen() {\n        plugin();\n    }\n}\npublic class Bluetooth2Strategy implements ListenStrategy { \/\/ \ube14\ub8e8\ud22c\uc2a42\ub97c \ud1b5\ud574 \uc5f0\uacb0\ud558\ub294 \ud589\uc704\ub97c \uac1d\uccb4\ud654\n    public void listen() {\n        bluetooth2();\n    }\n}\npublic class Bluetooth4Strategy implements ListenStrategy { \/\/ \ube14\ub8e8\ud22c\uc2a44\ub97c \ud1b5\ud574 \uc5f0\uacb0\ud558\ub294 \ud589\uc704\ub97c \uac1d\uccb4\ud654\n    public void listen() {\n        bluetooth4();\n    }\n}\n \n \npublic interface PlayStrategy {\n\/\/ \uc774\ud558 \uc0dd\ub7b5.....\n}\n \n \npublic class Earphone {\n    private final ListenStrategy strategy;\n    public Earphone(ListenStrategy strategy) {\n        this.strategy = strategy;\n    }\n    public void listen() {\n        strategy.listen();\n    }\n}\npublic class WireEarphone extends Earphone {}\npublic class CodelessEarphone extends Earphone {}\npublic class AirpodEarphone extends Earphone {}\n \n \n\/\/User code\n\/\/ \ube14\ub8e8\ud22c\uc2a4 2\ub9cc \uc9c0\uc6d0\ud558\ub294 \uc774\uc5b4\ud3f0\nEarphone oldCodelessEarphone = new CodelessEarphone(new Bluetooth2Strategy());\n \n\/\/ \ube14\ub8e8\ud22c\uc2a4 4\ub97c \uc9c0\uc6d0\ud558\ub294 \uc774\uc5b4\ud3f0\nEarphone newCodelessEarphone = new CodelessEarphone(new Bluetooth4Strategy());\n \n\/\/\ube14\ub8e8\ud22c\uc2a4 2\uc640 4\ub97c \ub2e4 \uc9c0\uc6d0\ud558\ub294 \ucd5c\uc2e0 \uc774\uc5b4\ud3f0\uc744 \uc81c\uc791\ud558\uace0 \uc2f6\uc73c\uba74? --> \uc0c8\ub85c\uc6b4 \ud615\ud0dc\uc758 Earphone\uc744 \ub9cc\ub4dc\ub294\uac8c \uc544\ub2cc, ListenStrategy\ub77c\ub294 \uc804\ub7b5\ub9cc \ucd94\uac00\ud558\uc5ec \uc0c8\ub85c\uc6b4 \ud615\ud0dc\uc758 Earphone\uc5d0 \uc804\ub7b5\uc744 \ucd94\uac00\ud558\uba74 \ub41c\ub2e4.\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5c4&#8230;. \uadfc\ub370 \uc804\ub7b5 \ud328\ud134\uc744 \uc0ac\uc6a9\ud558\ub2c8\uae4c \ub108\ubb34\ub108\ubb34\ub108\ubb34\ub108\ubb34 \ucf54\ub4dc\uac00 \uae38\uc5b4\uc84c\ub2e4&#8230;.. \uc790\ubc14\uc758 \uc885\ud2b9\uc774 \uadf8\ub300\ub85c \ubb3b\uc5b4\ub098\ub294 \uc21c\uac04(\uc190\uac00\ub77d \uc544\ud30c&#8230;)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub798\uc11c \ub78c\ub2e4\ub97c \uc0ac\uc6a9\ud574\uc11c!!!!!! \uac04\ub2e8\uac04\ub2e8\ud558\uac8c \uc804\ub7b5 \ud328\ud134\uacfc \ube44\uc2b7\ud55c \uac1c\ub150\uc758 \ucf54\ub4dc\ub85c \ub9ac\ud329\ud1a0\ub9c1 \ud560 \uc218 \uc788\ub2e4!<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/User code\nEarphone oldCodelessEarphone =  CodelessEarphone(() -> bluetooth2());\noldCodelessEarphone.listen();\nEarphone newCodelessEarphone =  CodelessEarphone(() -> bluetooth4());\nnewCodelessEarphone.listen();<\/pre>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:25px\">\ud15c\ud50c\ub9bf \uba54\uc18c\ub4dc \ud328\ud134<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ud15c\ud50c\ub9bf \uba54\uc18c\ub4dc \ud328\ud134\uc740 \ubb50&#8230; \ubcc4\uac70 \uc5c6\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc54c\uace0\ub9ac\uc998\uc744 &#8216;\uc0ac\uc6a9\ud558\ub294&#8217; \ucabd\uc5d0\uac8c, \ubcc0\uacbd\uc758 \uc5ec\uc9c0\uac00 \uc788\ub294 \ubd80\ubd84\uc744 \uc9c1\uc811 \uad6c\ud604\ud558\ub77c\uace0 \uc5ed\ud560\uc744 \uc704\uc784\ud574 \uc8fc\ub294 \uace0\ub7f0 \ud328\ud134\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc54c\uace0\ub9ac\uc998\uc744 &#8216;\ub9cc\ub4dc\ub294&#8217; \ucabd\uc740, \uac00\ubcc0\uc801\uc77c \uc218 \uc788\ub294 \ub85c\uc9c1\uc744 \ucd94\uc0c1\ud654\ub97c \ud558\uc5ec \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc81c\uacf5\ud574 \uc8fc\uba74 \ub418\ub294\uac70\uace0.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uac04\ub2e8\ud558\uace0 \uc9c1\uad00\uc801\uc778 \ud328\ud134\uc774\ub2c8 \uc608\uc81c\ub97c \ubd10 \ubcf4\ub3c4\ub85d \ud558\uc988\uc544<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public abstract class OnlineBanking {\n    public void depositToCustomer(int id) {    \/\/\uc804\uccb4 \ud50c\ub7ab\ud3fc \ud750\ub984(\ud50c\ub7ab\ud3fc \uc81c\uacf5\uc790\uc758 \ucf54\ub4dc)\n        Customer c = Dataabase.getCustomerWithId(id);\n        sysout(\"\ud658\uc601\ud569\ub2c8\ub2e4 \uace0\uac1d\ub2d8!!!!\");\n        depositCash(c);\n        sysout(\"\uc785\uae08 \uc644\ub8cc\ud588\uc5b4\uc694~!\");\n    }\n \n    abstract void depositCash(Customer c);  \/\/ \ud074\ub77c\uc774\uc5b8\ud2b8\uac00 \uc0c1\uc18d\ubc1b\uc544\uc11c \uad6c\ud604\ud574\uc57c \ud568\n}\n \n \n\/\/User code\npublic class SeoulSquareOnlineBanking extends OnlineBanking {  \/\/\uc11c\uc6b8\uc2a4\ud018\uc5b4 \uc9c0\uc810\uc758 \ud074\ub77c\uc774\uc5b8\ud2b8 \ucf54\ub4dc\n    void  depositCash(Customer c) {   \/\/override....\n        sysout(\"\uc785\uae08\ud574\ub4dc\ub9b4\uac8c\uc694. \uc800\ud76c \uc9c0\uc810\uc740 \ubcf4\ub108\uc2a4 \ud3ec\uc778\ud2b8\ub97c \uc9c0\uae09\ud574 \ub4dc\ub824\uc694\");\n    }\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5ec\uae30\uc11c depositCash() \uac00 \uc77c\uc885\uc758 \ud15c\ud50c\ub9bf \uba54\uc18c\ub4dc\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \ud328\ud134\uc744 \uc0ac\uc6a9\ud558\ub2e4\ubcf4\uba74, \uc0c1\ub2f9\ud788 \uadc0\ucc2e\uc740\uac8c, \uc54c\uace0\ub9ac\uc998\uc744 \uc0ac\uc6a9\ud558\ub294 \ucabd\uc5d0\uc11c \uac15\uc81c\ub85c \uc54c\uace0\ub9ac\uc998\uc744 \ub9cc\ub4dc\ub294 \ucabd\uc758 \ucd94\uc0c1\ud654\ub41c \ud074\ub798\uc2a4\ub97c \uac15\uc81c\uc801\uc73c\ub85c extends \ud558\ub294 \ud558\uc704 \ud074\ub798\uc2a4\uac00 \ub9e4\ubc88 \ub9cc\ub4e4\uc5b4\uc838\uc57c \ud55c\ub2e4\ub294 \uac83\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc694\ub7f0 \uacbd\uc6b0 \uc190\uac00\ub77d\uc774 \uc544\ud504\uc9c0 \uc54a\uac8c \uac04\ub2e8\ud788 \ub78c\ub2e4\uc2dd\uc73c\ub85c \ubc14\uafd4\uc904 \uc218\uac00 \uc788\ub2e4(\uc774\ub7fc &#8216;\ud15c\ud50c\ub9bf \uba54\uc18c\ub4dc \ud328\ud134&#8217;\uc5d0 \ub300\ud55c \ub514\uc790\uc778\ud328\ud134\uc744 \ubab0\ub77c\ub3c4, \uc790\uc5f0\uc2a4\ub808 \uadf8 \uae30\ubc95\uc744 \uc0ac\uc6a9\ud560 \uc218\uac00 \uc788\uc744 \uac83\uc774\ub2e4.)<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public abstract class OnlineBanking {\n    public void depositToCustomer(int id, Consumer&lt;Cutsomer> depositCash) {\n        Customer c = Database.getCustomerWithId(id);\n        depositCash.accept(c);\n    }\n}\n \n \n\/\/User code\nnew OnlineBanking().depositToCustomer(1234321,\n(Customer c) ->  sysout(\"\uc785\uae08\ud574\ub4dc\ub9b4\uac8c\uc694. \uc800\ud76c \uc9c0\uc810\uc740 \ubcf4\ub108\uc2a4 \ud3ec\uc778\ud2b8\ub97c \uc9c0\uae09\ud574 \ub4dc\ub824\uc694.\")); \/\/depositCash() \ub97c \uc9c1\uc811 lambda\ub97c \ud1b5\ud574 \uad6c\ud604\n \nnew OnlineBanking().depositToCustomer(1234321,\n(Customer c) -> sysout(\"\uc785\uae08\ud574\ub4dc\ub9b4\uac8c\uc694. \uc800\ud76c\uc9c0\uc810\uc740 \ub85c\ub610 \ud55c\uc7a5\uc529 \ubcf4\ub108\uc2a4\ub85c \ub4dc\ub824\uc694\"));<\/pre>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:25px\">\uc635\uc800\ubc84 \ud328\ud134<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc57d\uac04 \uba54\uc2dc\uc9c0 \ube0c\ub85c\ub4dc\uce90\uc2a4\ud2b8\uac19\uc740 \ub290\ub08c\uc774\ub77c \uc0dd\uac01\ud558\uba74 \ub420 \uac83\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\uac1c\uc758 subject &#8211; N\uac1c\uc758 observer \ub85c \ubb36\uc5ec\uc11c, subject\uac00 \ud2b9\uc815 \uc774\ubca4\ud2b8\ub97c \ubc1c\ub3d9\ud558\uba74, \ubaa8\ub4e0 observer\uc5d0 \uadf8 \uc774\ubca4\ud2b8\uac00 \ube0c\ub85c\ub4dc\uce90\uc2a4\ud2b8 \ub418\ub294 \uadf8\ub7f0 \uad6c\uc870&#8230;.(\ubb3c\ub860 \ubaa8\ub4e0 \uc774\ubca4\ud2b8\ub97c \ub2e4 \ucc98\ub9ac\ud560 \ud544\uc694\ub294 \uc5c6\uc73c\ub2c8, \ubc1b\uc740 \uc774\ubca4\ud2b8\ub97c \ucc98\ub9ac\ud560\uc9c0 \ub9d0\uc9c0\ub294 observer\uac00 \ucc45\uc784\uc9c0\ub3c4\ub85d \ud55c\ub2e4.)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc608\uc81c\ub97c \ubcf4\uc790. \ub274\uc2a4\ud53c\ub4dc \uc608\uc81c\uc774\ub2e4.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public interface Subject {\n    void register(Observer o);\n    void notifyAll(String feedMsg);\n}\n \n \npublic interface Observer { \/\/ \ud074\ub77c\uc774\uc5b8\ud2b8\uc5d0\uac8c '\ub10c Observer\ub9cc \uc0c1\uc18d\ubc1b\uc544 notify \uc218\ud589\uc744 \ud558\ub294 \ucf54\ub4dc\ub9cc \uc791\uc131\ud558\uba74 \ub3fc.'\n    void notify(String feedMsg);\n}\n \n \n \n \npublic NewsFeed implements Subject {\n    private final List&lt;Observer> newsObserverList = new ArrayList&lt;Observer>();\n     \n    @Override\n    public void register(Observer o) {\n        this.newsObserverList.add(o);\n    }\n    @Override\n    public void notifyAll(String feedMsg) {\n        newsObserverList.forEach(elem -> elem.notify(feedMsg));\n    }\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\uac74 subject\uc5d0\uc11c \uad6c\ud604\ub418\ub294 \ucf54\ub4dc\uc774\uace0,<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class MBCNews implements Observer {\n    public void notify(String feedMsg) {\n        if (feedMsg.contains(\"MBC\")) {\n            sysout(\"MBC\ub274\uc2a4 \uc18d\ubcf4\uc785\ub2c8\ub2e4! \uc18d\ubcf4\ub0b4\uc6a9\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4! : \" + feedMsg);\n        }\n    }\n}\npublic class JtbcNews implements Observer {\n    \/\/\uc774\ud558 \uc0dd\ub7b5...\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\uac74 observer\uac00 \uad6c\ud604\ud55c \ucf54\ub4dc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub274\uc2a4\ud53c\ub354(subject)\uac00 \ub274\uc2a4\ud53c\ub4dc\ub97c \ub0a0\ub9ac\uba74, \uac01 \ubc29\uc1a1\uc0ac\ub4e4(observer)\ub294 \uadf8 \ud53c\ub4dc\ub97c \ubc1b\uace0 \ubcf8\uc778\uc774 \ub3cc\ub824\uc57c \ud560 \ub85c\uc9c1\ub4e4\uc744 \uc218\ud589\ud558\ub294 \ubc29\uc2dd\uc774\ub2e4.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \ub274\uc2a4\ud53c\ub4dc \ubc1c\ub3d9!!\nNewsFeed nf = new NewsFeed();\nnf.register(new MBCNews());\nnf.register(new JtbcNews());\nnf.notifyAll(\"MBC\uc5d0\uac8c \uc18d\ubcf4\ub97c \uc904\uae4c JTBC \uc5d0\uac8c \uc904\uae4c \uc544\ub2d8 \ub2e4\uc904\uaebc\uc57c\");<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc790&#8230;..\uc774\uac8c observer \ud328\ud134\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub7fc \uc774\uac78 lambda\ub85c \ubc14\uafc0 \uc218 \uc788\uc744\uae4c?<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/nf.register(implements Observer \uadf8 \ubb34\uc5b8\uac00...);\n \n \nnf.register((String feedMsg) -> {\n    if(feedMsg.contains(\"MBC\")) {\n        sysout(\"MBC\ub274\uc2a4 \uc18d\ubcf4\uc785\ub2c8\ub2e4! \uc18d\ubcf4\ub0b4\uc6a9\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4! : \" + feedMsg);\n    }\n});\n \n \nnf.register((String feedMsg) -> {\n    if(feedMsg.contains(\"JTBC\")) {\n        sysout(\"JTBC \uc18d\ubcf4\ub0b4\uc6a9\uc740 \uacf5\uc911\ud30c\ub791 \ub2ec\ub77c\uc694~ \ub450\ubc88 \uc54c\ub824\ub4dc\ub824\uc694. \ub0b4\uc6a9\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4! : \" + feedMsg + feedMsg);\n    }\n});<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ucf54\ub4dc\uac00 \ud6e8\uc52c \uae54\ub054\ud574\uc84c\ub2e4. \uad6c\uc9c8\uad6c\uc9c8\ud558\uac8c Observer\ub97c \uc0c1\uc18d\ubc1b\uc740 \ud074\ub798\uc2a4\ub97c \ub9cc\ub4e4 \ud544\uc694\uac00 \uc5c6\ub2e4.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\uac1c\uc778\uc801\uc778 \uc0dd\uac01<\/p><cite>\uc774\ub7f0 \uac04\ub2e8\ud55c \uacbd\uc6b0\uc57c&#8230;best case\ub97c \ubf51\uc558\uc73c\ub2c8 \ud6e8\uc52c \uae54\ub054\ud574 \ubcf4\uc774\uc9c0, \uc774 \uc635\uc800\ubc84 \ud328\ud134\uac19\uc740 \uacbd\uc6b0\ub294 \uc544\ub9c8 \ubc14\uafb8\uc9c0 \ubabb\ud560 \ud655\ub960\uc774 \ub192\uc740 \ub290\ub08c\uc774\ub2e4.<br>\uac01 observer\uac00 \uc790\uae30\uac00 \uc4f8 \uc0c1\ud0dc\uac12 \ud558\ub098\ub9cc(\ubb50 &#8216;\ud53c\ub4dc \uc218\uc2e0\uc2dc\uac04&#8217; \uc774\ub77c\ub358\uac00 \uadf8\ub7f0\uac70&#8230; \ud639\uc740 \ubaa8\ub4e0 observer\uac00 \uc544\ub2c8\uace0, \ud2b9\uc815 \ud558\ub098\uc758 observer\ub9cc\uc774\ub77c\ub3c4) \uac16\uac8c \ub418\ub294 \uc21c\uac04, lambda\ub85c \uc804\ud658\ud558\ub294\uac83\ubcf4\ub2e4 \uadf8\ub0e5 plain old java \ud615\uc2dd\uc73c\ub85c \uad6c\ud604\ud574 \ub193\ub294\uac8c \ucc28\ub77c\ub9ac \ub354 \uae54\ub054\ud560 \uac70\ub77c\ub294 \uc0dd\uac01.<br>\uadf8\ub9ac\uace0, \uc774 \ucf54\ub4dc\ub97c \uc791\uc131\ud558\ub294 \ucabd\uc5d0\uc11c\uc57c \uc190\uac00\ub77d\uc774 \ub35c \uc544\ud504\uaca0\uc9c0\ub9cc \uc77d\ub294 \uc0ac\ub78c \uc785\uc7a5\uc5d0\uc11c\ub294, \ub78c\ub2e4\ub85c \ubc14\uafb8\uba74\uc11c \ud074\ub798\uc2a4 \uc774\ub984\uc774 \uc5c6\uc5b4\uc84c\uc73c\ub2c8&#8230; \uc774 Observer\uc758 \uc815\uccb4\uac00 \ubb54\uc9c0 \ud074\ub798\uc2a4\uba85\uc774 \uc544\ub2c8\ub77c \ub78c\ub2e4 \ub85c\uc9c1\uc744 \ubd10\uc57c \uc774\ud574\ub97c \ud560 \uc218\uac00 \uc788\ub2e4. \uac00\ub3c5\uc131\uc744 \ub192\uc774\uace0\uc790 \ud55c \uc2dc\ub3c4\uc77c\ud150\ub370 \uc624\ud788\ub824 \ub78c\ub2e4\uc758 \ubc14\ub514\ub97c \ubd10\uc57c \ub85c\uc9c1\uc744 \uc774\ud574\ud560 \uc218 \uc788\ub294, \ub354 \ub9ce\uc774 \uc77d\uc5b4\uc57c \ud558\ub294 \uc0c1\ud669\uc774 \ubc1c\uc0dd\ud558\ub294 \ub4ef \ud55c \ub290\ub08c\uc784.<br><br>\uc554\ud2bc \uc694 \ud328\ud134\uc744 \ub78c\ub2e4\ub85c \ubc14\uafc0\ub588 \uc880 \uc0dd\uac01\uc744 \ud558\uace0 \ubc14\uafb8\ub294 \uc2dc\ub3c4\ub97c \ud558\ub294\uac8c \uc88b\uc9c0 \uc54a\uc744\uae4c \uc2f6\ub2e4.<\/cite><\/blockquote>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:25px\">\uc758\ubb34 \uccb4\uc778 \ud328\ud134<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uac04\ub2e8\ud558\uac8c \uadf8\ub0e5 \uba54\uc18c\ub4dc \uccb4\uc778\uc744 \uac1d\uccb4 \ub2e8\uc704\ub85c \ud558\ub294 \ud328\ud134&#8230; \ubb50 \uc598\ub294 \uc0ac\uc2e4 &#8216;\ub514\uc790\uc778\ud328\ud134&#8217; \uc774\ub77c\ub294 \uc774\ub984\uc744 \ubd99\uc774\uae30\ub3c4 \ubb50\ud55c \ub290\ub08c \uc544\ub2d0\uae4c&#8230;\u314b\u314b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uace7\ubc14\ub85c \uc608\uc81c\ub97c \ud1b5\ud574 \ubd10\ubcf4\uc790.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public abstract class ProcessingObject&lt;T> {\n    protected ProcessingObject&lt;T> successor;\n    public void setSuccessor(ProcessingObject&lt;T> successor) {\n        this.successor = successor;\n    }\n    public T haandle (T input) {\n        T r = handleWOrk(input);\n        if (successor != null) {\n            return successor.handle(r);\n        }\n        return r;\n    }\n \n \n    abstract protected T handlwWork(T input);\n}\n\n\n\npublic class HeaderTextProcessing extends ProcessingObject&lt;String> {\n    public String handleWork(String text) {\n        return \"From Raaoul, Mario and Alan : \" + text;\n    }\n}\n \n \npublic class SpellCheckerProcessing extends ProcessingObject&lt;String> {\n    public String handleWork(String text) {\n        return text.replaceAll(\"labda\", \"lambda\");\n    }\n}\n \n \n\/\/\uad6c\ud604\ubd80 \ucf54\ub4dc\nProcessingObject&lt;String> p1 = new HeaderTextProcessing();\nProcessingObject&lt;String> p2 = new SpellCheckerProcessing();\np1.setSucessor(p2);  \/\/ \uccb4\uc774\ub2dd \ubd80\ubd84. \uc774\ud574\uac00 \uc5b4\ub835\ub2e4\uba74 \uc0c1\uae30 \uadf8\ub9bc\uc744 \ucc38\uc870\ud558\uc5ec \ubcf4\uc790.\n \n \nsysout(p1.handle(\"Aren't labdas really sexy?!!\"));\n\/\/ From Raoul, Mario and Alan: Aren't lambdas really sexy?!!<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">p1\uc758 handleWork\uac00 \uc131\uacf5\ud558\uba74, p1\uc758 handleWork \uacb0\uacfc\ubb3c\uc744&#8230; p2\uac00 \ubc1b\uc544\uc11c \ucd5c\uc885 \ub85c\uc9c1\uc744 \uc218\ud589\ud558\ub294 \uad6c\uc870\uc774\ub2e4.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"524\" height=\"260\" src=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2021\/02\/image-4.png\" alt=\"\" class=\"wp-image-391\" srcset=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2021\/02\/image-4.png 524w, https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2021\/02\/image-4-300x149.png 300w\" sizes=\"auto, (max-width: 524px) 100vw, 524px\" \/><figcaption>\ubb50 \uc694\ub7f0 \ub290\ub08c<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\uac83\ub3c4 \ub78c\ub2e4\ub85c \ubcc0\uacbd\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">UnaryOperator&lt;String> headerProcessing = (String text) -> \"From Raaoul, Mario and Alan : \" + text;\nUnaryOperator&lt;String> spellCheckerProcessing = (String text) -> text.replaceAll(\"labda\", \"lambda\");\n \n \nFunction&lt;String,String> pipeline = headerProcessing.andThen(spellCheckerProcessing); \/\/ \uccb4\uc774\ub2dd \ubd80\ubd84.\npipeline.apply(\"Aren't labdas really sexy?!!\");<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ud558, \uc598\ub294 \ud3b8-\uc548 \ud558\ub2e4&#8230;..\u314b\u314b\u314b\u314b\u314b\u314b \uc774\uc804 \uc608\uc81c\uc778 \uc635\uc800\ubc84 \ud328\ud134\uacfc\ub294 \ub2e4\ub974\uac8c \uc758\ubb34 \uccb4\uc778 \ud328\ud134\uc740 \ub78c\ub2e4\ub85c \ubcc0\uacbd\ud558\ub294\uac8c 3\ub9cc\ubc30\ub294 \ub354 \uc88b\uc740 \uac83 \uac19\ub2e4.<\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:25px\">\ud329\ud1a0\ub9ac \ud328\ud134<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ubb50&#8230;. \ub9d0 \uadf8\ub300\ub85c \ubd95\uc5b4\ube75 \uacf5\uc7a5\uc5d0\uc11c \ubd95\uc5b4\ube75\uc744 \ucc0d\uc5b4\ub0b4\ub294 \uadf8\ub7f0 \ud328\ud134\uc774\ub77c\uace0 \uc0dd\uac01\ud558\uba74 \ub41c\ub2e4. \uac1c\uc778\uc801\uc73c\ub85c OOP\uc758 &#8216;\ub2e4\ud615\uc131&#8217;\uc774\ub780 \uac1c\ub150\uc774 \uac00\uc7a5 \uc9c1\uad00\uc801\uc73c\ub85c \uc798 \ub4dc\ub7ec\ub098\ub294 \ud328\ud134\uc774\ub77c\uace0 \uc0dd\uac01\ud568.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ube60\ub974\uac8c \uc608\uc81c\ub97c \ud1b5\ud574 \uc5bc\ub9c8\ub098 \uac04\ub2e8\ud558\uac8c \ub9cc\ub4e4 \uc218 \uc788\ub294\uc9c0 \ubd10\ubcf4\uc790<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/Pdp, Phone , Travel : extends Product\npublic class ProductFactory {\n    public static Product createProduct(String productName) {\n        switch(productName) {\n            case \"pdp\" : return new Pdp();\n            case \"phone\" : return new Phone();\n            case \"travel\" : return new Travel();\n        }\n    }\n}\n \n \n \n \n\/\/User Code\nProduct prd = ProductFactory.createProduct(\"pdp\");\nprd.addToCart(); prd.buy(); \/\/etc\n \n \nProduct prd2 = ProductFactory.createProduct(\"phone\");\nprd2.addToCart(); prd2.buy(); \/\/etc<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc601\ub77d\uc5c6\ub294 \ud329\ud1a0\ub9ac \ud328\ud134\uc774\ub2e4. \ud329\ud1a0\ub9ac \ud328\ud134\uc740 new\ub97c \ud1b5\ud574 \uac1d\uccb4\ub97c \uc0dd\uc131\ud558\ub294\uac8c \uc77c\ubc18\uc801\uc774\ubbc0\ub85c, \ub78c\ub2e4\ubcf4\ub2e4\ub294 \uba54\uc18c\ub4dc \ucc38\uc870\ub97c \uc774\uc6a9\ud558\uc5ec \ubaa8\ub358 \uc790\ubc14\uc5d0 \ub9de\uac8c \ub9ac\ud329\ud1a0\ub9c1\uc744 \ud560 \uc218\uac00 \uc788\uc744 \uac83\uc774\ub2e4.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class ProductFactory {\n \n    final static Map&lt;String, Supplier&lt;Product>> map = new HashMap&lt;>();\n    static {\n        map.put(\"pdp\", Pdp::new);\n        map.put(\"phone\", Phone::new);\n        map.put(\"travel\", Travel::new);\n    }\n \n    public static Product createProduct(String productName) {\n        Supplier&lt;Product> p = map.get(productName);\n        if (p != null) {\n            return p.get();\n        }\n        throw new IllegalArgumentException(\"No Such Product\" + productName);\n \n    }\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc694\ub807\uac8c&#8230;&#8230;.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\uadfc\ub370 \ucc28\uc774\uac00 \ub290\uaef4\uc9c0\ub098?;;;;;;;<\/p><cite>\ub09c \ubaa8\ub974\uaca0\ub2e4~~~~~ \u314b\u314b<\/cite><\/blockquote>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud14c\uc2a4\ud305<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc554\ub9cc \uc774\uc058\uac8c \uc9dc\ub3c4 \uacb0\uad6d \uc798 \ub3cc\uc544\uac00\uc57c \ud558\ub294\uac8c \ucf54\ub4dc&#8230;.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc778 \ud14c\uc2a4\ud2b8 \ucf54\ub4dc\uc57c \ub9ce\uc774\ub9ce\uc774 \ubd24\uc744\ud14c\ub2c8 \uacfc\uac10\ud788 \uc0dd\ub7b5\ud558\uace0 \uace7\ubc14\ub85c \ub78c\ub2e4\uc2dd\uc758 \ub3d9\uc791 \ud14c\uc2a4\ud2b8 \ucf54\ub4dc\ub97c \ubd10\ubcf4\uc790<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud14c\uc2a4\ud2b8 \ud558\ub824\ub294 \uba54\uc18c\ub4dc\uac00 public\uc778 \uacbd\uc6b0\ub294 \ud14c\uc2a4\ud2b8\ucf00\uc774\uc2a4 \ub0b4\ubd80\uc5d0\uc11c \uadf8 \uba54\uc18c\ub4dc\ub97c \ud638\ucd9c\ud558\ub294 \ubc29\ubc95\uc73c\ub85c \ud14c\uc2a4\ud2b8\ub97c \ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud558\uc9c0\ub9cc \ub78c\ub2e4\uc2dd\uc740 \uadf8\ub7ec\uc9c0 \ubabb\ud55c\ub2e4. \ud0dc\uc0dd \uc790\uccb4\uac00 \uc775\uba85\ud568\uc218\uc774\uae30 \ub584\ubb38\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub97c \uc6b0\ud68c\ud558\uc5ec \ud14c\uc2a4\ud2b8 \ud560 \uc218 \uc788\ub294 \ubc29\ubc95\uc740 \uc788\ub2e4. \ub78c\ub2e4\uc2dd(\ub0b4\uc9c0\ub294 \uba54\uc18c\ub4dc \ucc38\uc870) \uc744 \ud074\ub798\uc2a4\uc758 \ud504\ub85c\ud37c\ud2f0\uc5d0 \uc800\uc7a5\ud574\uc11c \ud14c\uc2a4\ud2b8 \ud558\uba74 \ub41c\ub2e4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc608\uc81c\ub97c \ubcf4\uc790.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class Point {\n  public final static Comparator&lt;Point> compareByXAndThenY = \n    comparing(Point::getX).thenComparing(Point::getY);\n}\n\n\n@Test\npublic void testComparing() {\n  Point p1 = new Point(10,15);\n  Point p2 = new Point(10,20);\n\n int result = Point.compareByXAndY.compare(p1, p2);\n assertTrue (result &lt; 0);\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ubb50 \uadf8\ub807\ub2e4\uace0 \ud55c\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadfc\ub370 \ubb50&#8230; \uc6f9\uc11c\ube44\uc2a4 \ud558\ub294 \uc9c0\uadf9\ud788 \uc815\uc11d\uc801\uc778 \uc11c\ube44\uc2a4 \ucf54\ub4dc\uc5d0\uc11c\ub294, \ub300\ubd80\ubd84 \uadf8\ub0e5 \uc11c\ube44\uc2a4 \uba54\uc18c\ub4dc\ub97c \ub2e8\uc704\ud14c\uc2a4\ud2b8\ub85c \ub3cc\ub824\ubcf4\ub2c8 \uc774\uac78 \uc4f8 \uc77c\uc774 \uc5c6\uc744 \uac83 \uac19\uae34 \ud558\ub2e4 (\ubb54\uac00 \ud14c\uc2a4\ud2b8 \ud55c\ub2e4\uace0 \ud504\ub85c\ud37c\ud2f0\ub97c \ub530\ub85c \ub9cc\ub4dc\ub294 \uac83\ub3c4 \uaebc\ub9bc\uce59\ud558\uace0&#8230;.\u314b\u314b)<\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ub514\ubc84\uae45<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4\ub294 \uc0dd\ub7b5\ud55c\ub2e4. \ucc45 \ub0b4\uc6a9\uc5d0\uc11c \ud06c\uac8c \ub2e4\ub8e8\uc9c0 \uc54a\uace0, \uadf8\ub0e5 &#8216;\ub78c\ub2e4\uc2dd \uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4\ub294 \uc774\ud574\ud558\uae30 \uc5b4\ub835\uac8c \ucd9c\ub825\ub41c\ub2e4&#8217; \ub77c\uace0&#8230;.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud558\uc9c0\ub9cc \ub85c\uae45\uc740 \uc870\uae08 \ubcfc \uac00\uce58\uac00 \uc788\ub294 \uad6c\uac04\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud45c\uc900\ucd9c\ub825\uc73c\ub85c \ud2b9\uc815 \ub85c\uc9c1\uc774 \ub3d9\uc791\ud558\ub294 \uacb0\uacfc\uac12\uc744 \ub208\uc73c\ub85c \uc9c1\uc811 \ubcf4\uace0 \uc2f6\uc740 \uacbd\uc6b0\uac00 \uc788\uc744 \uac83\uc774\ub2e4.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">List&lt;Integer> numbers = Arrays.asList(1,2,3,4,5,6,7);\n\nnumbers.stream()\n       .map(x -> x+17)\n       .filter(x -> x%2 == 0)\n       .limit(3)\n       .forEach(sysout);<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uacb0\uacfc\uac12\uc774 \uc798 \ucd9c\ub825\ub420 \uac83\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e4\ub9cc&#8230;. \ucd5c\uc885 \uacb0\uacfc\uac12\ub9cc\uc774 \ud638\ucd9c\ub418\ub294 \uac83\uc774\uace0, forEach \uad6c\ubb38\uc5d0 \ub3cc\uc785\ud558\uba74\uc11c \uc2a4\ud2b8\ub9bc\uc744 \uba39\uc5b4\ubc84\ub9b0\ub2e4.(number\ub97c \ub2e4\uc2dc \uc4f0\ub824\uba74 forEach \uc774\ud6c4\uc5d0 \uc2a4\ud2b8\ub9bc\uc744 \ub2e4\uc2dc \uc0dd\uc131\ud574\uc57c \ud55c\ub2e4\ub294 \ub9d0)  \uc911\uac04\uc911\uac04\uc5d0 \uc5f0\uc0b0 \uc911\uac04\uac12\ub3c4 \ubcf4\uace0 \uc2f6\uc740 \uacbd\uc6b0\ub3c4 \uc788\uc744\uac70\uace0&#8230;..<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub7f4\ub54c \uc0ac\uc6a9\ud558\ub294\uac8c peek() \uc774\ub780 \uba54\uc18c\ub4dc\uc774\ub2e4. \uc2a4\ud2b8\ub9bc\uc744 \uafb8\uc5ed\uafb8\uc5ed \uba39\uc9c0 \uc54a\uace0, peek\uc758 \uc785\ub825\uc73c\ub85c \ub4e4\uc5b4\uc628 \uac12\uc744 \uadf8\ub300\ub85c read\ub9cc \ud558\uace0 \uadf8\ub300\ub85c \ub2e4\uc74c \uc2a4\ud2b8\ub9bc\uc5d0 \ucd9c\ub825\uae4c\uc9c0 \ud574 \uc900\ub2e4.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">List&lt;Integer> numbers = Arrays.asList(1,2,3,4,5,6,7);\n\nnumbers.stream()\n       .peek(sysout(x))\n       .map(x -> x+17)\n       .peek(sysout(x))\n       .filter(x -> x%2 == 0)\n       .peek(sysout(x))\n       .limit(3)\n       .peek(sysout(x))\n       .collect(toList());<\/pre>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ub9c8\uce58\uba70 <\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>\ub78c\ub2e4 \ud45c\ud604\uc2dd\uc744 \uc798~ \uc0ac\uc6a9\ud558\uba74 \uac00\ub3c5\uc131 \uc788\uace0 \uc720\uc5f0\ud55c. \uc88b\uc740 \ucf54\ub4dc\ub97c \ub9cc\ub4e4 \uc218 \uc788\ub2e4<\/li><li>\uc775\uba85 \ud074\ub798\uc2a4\ub294 \ub78c\ub2e4\ub85c \ubcc0\uacbd\ud558\ub294\uac8c \uc88b\ub2e4. \ub2e8, \ub78c\ub2e4\ub97c \uc0ac\uc6a9\ud558\ub294 \uc21c\uac04 scope\uac00 \ubcc0\uacbd\ub418\uba74\uc11c this\uc811\uadfc\uc790\ub098, \ubcc0\uc218\uc758 scope\ub610\ud55c \ubcc0\uacbd\ub418\ub2c8 \uc8fc\uc758\ud574\uc11c \uc368\uc57c \ud55c\ub2e4.<\/li><li>\uba54\uc18c\ub4dc \ucc38\uc870\ub3c4 \ub354\ub354\uc6b1 \ub9ce\uc774 \uc0ac\uc6a9\ud558\ub2e4. \ub78c\ub2e4\ubcf4\ub2e4 \ub354 \uac04\ub2e8\ud788 \uc4f8 \uc218 \uc788\ub2e4.<\/li><li>\ub78c\ub2e4 \ud45c\ud604\uc2dd\uc73c\ub85c \uc5ec\ub7ec\uac00\uc9c0 \ub514\uc790\uc778 \ud328\ud134\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \ubd88\ud544\uc694\ud55c \ucf54\ub4dc\ub4e4\uc744 \uaf64 \ub9ce\uc774 \uc815\ub9ac\ud560 \uc218 \uc788\ub2e4.<\/li><li>\ub78c\ub2e4 \ud45c\ud604\uc2dd\ub3c4 \ud14c\uc2a4\ud2b8\ucf54\ub4dc\ub97c \uc218\ud589\ud560 \uc218 \uc788\ub2e4. \ub2e4\ub9cc \uc9c0\uc591\ud558\uc790(\uc11c\ube44\uc2a4 \uba54\uc18c\ub4dc\ub97c \ud638\ucd9c\ud558\ub294 \ubc29\uc2dd\uc73c\ub85c \ud14c\uc2a4\ud2b8\ucf54\ub4dc\ub97c \uc9dc\uc790&#8230;.)<\/li><li>\ub78c\ub2e4 \ud45c\ud604\uc2dd\uc744 \uc4f0\uba74 \uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4\ub97c \uc774\ud574\ud558\uae30 \uc5b4\ub824\uc6b4 \uacbd\uc6b0\uac00 \uc788\ub2e4.<ul><li>\ud558\uc9c0\ub9cc &#8216;\uc2a4\ud0dd&#8217; \ud2b8\ub808\uc774\uc2a4\uc774\uae30\uc5d0, \ud504\ub85c\uc81d\ud2b8 \ub808\ubca8\uc758 \ucf54\ub4dc\ub77c\uba74 \uc5b4\ub290 \uc9c0\uc810\uc5d0\uc11c \ubb34\uc5b8\uac00 \uc798\ubabb \ub418\uc5c8\ub294\uc9c0 \ubc1c\uacac\ud560 \uc218\ub294 \uc788\uc744 \uac83\uc774\ub2e4..<\/li><\/ul><\/li><li>\uc2a4\ud2b8\ub9bc pipeline\uc5d0\uc11c peek\uc774\ub780 \uba54\uc18c\ub4dc\ub97c \uc0ac\uc6a9\ud574\uc11c, \uc911\uac04\uac12\uc744 \ubcfc \uc218\uac00 \uc788\ub2e4.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc791\ub144 \uc774\ub9d8\ub54c \ubaa8\ub358 \uc790\ubc14 \uc778 \uc561\uc158 9\uc7a5\uc744 \ub9ac\ubdf0\ud588\uc5c8\ub294\ub370 \ub2e4\uc2dc \ubcf4\ub2c8 \uc0c8\ub86d\ub124\uc694. 9\uc7a5? \uc774 \uc7a5\uc5d0\uc11c \ub2e4\ub8e8\uace0\uc790 \ud558\ub294 \ub0b4\uc6a9\uc740 \ub2e4\uc74c\uacfc \uac19\ub2e4. \ub78c\ub2e4\uc640 \uc2a4\ud2b8\ub9bc\uc744 \ubc30\uc6b0\uae34 \ubc30\uc6e0\ub2e4 \ub78c\ub2e4\uc640 \uc2a4\ud2b8\ub9bc\uc744 \uc0ac\uc6a9\ud558\uba74 \uac00\ub3c5\uc131\uc774 \uac1c\uc120 \ub41c\ub2e4\ub294 \uac83\ub3c4 \uc54c\uace0 \uc788\ub2e4 \uadf8\ub7fc, HOW? \ub108\ub313\uc904\uc9dc\ub9ac \ucf54\ub4dc\uc57c \uc608\uc81c\uc5d0\uc11c \uc218\uc5c6\uc774 \ubcf4\uc558\uc9c0\ub9cc&#8230;.\uc2e4\ubb34 \ucf54\ub4dc\ub294? \ub530\ub77c\uc11c, 9\uc7a5\uc740 \uadf8 &#8216;HOW&#8217; \uc5d0 \ub300\ud55c \ub0b4\uc6a9\uc744 \ub300\ud45c\uc801\uc778 \ub514\uc790\uc778 \ud328\ud134\uc5d0 \uc785\uac01\ud558\uc5ec \uc124\uba85\ud558\uaca0\ub2e4 \uc804\ub7b5\ud328\ud134 \ud15c\ud50c\ub9bf \uba54\uc18c\ub4dc &#8230; <a title=\"\ubaa8\ub358 \uc790\ubc14 \uc778 \uc561\uc158 9\uc7a5\" class=\"read-more\" href=\"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/2021\/02\/17\/%eb%aa%a8%eb%8d%98-%ec%9e%90%eb%b0%94-%ec%9d%b8-%ec%95%a1%ec%85%98-9%ec%9e%a5\/\" aria-label=\"Read more about \ubaa8\ub358 \uc790\ubc14 \uc778 \uc561\uc158 9\uc7a5\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-382","post","type-post","status-publish","format-standard","hentry","category-3"],"_links":{"self":[{"href":"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/382","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/wp-json\/wp\/v2\/comments?post=382"}],"version-history":[{"count":7,"href":"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/382\/revisions"}],"predecessor-version":[{"id":397,"href":"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/382\/revisions\/397"}],"wp:attachment":[{"href":"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/wp-json\/wp\/v2\/media?parent=382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/wp-json\/wp\/v2\/categories?post=382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/wp-json\/wp\/v2\/tags?post=382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}