{"id":265,"date":"2020-11-09T02:00:00","date_gmt":"2020-11-09T02:00:00","guid":{"rendered":"http:\/\/scrutineer.co.kr\/wordpress\/?p=265"},"modified":"2021-01-05T02:08:56","modified_gmt":"2021-01-05T02:08:56","slug":"%eb%aa%a8%eb%8d%98-%ec%9e%90%eb%b0%94-%ec%9d%b8-%ec%95%a1%ec%85%98-3%ec%9e%a5-2","status":"publish","type":"post","link":"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/2020\/11\/09\/%eb%aa%a8%eb%8d%98-%ec%9e%90%eb%b0%94-%ec%9d%b8-%ec%95%a1%ec%85%98-3%ec%9e%a5-2\/","title":{"rendered":"\ubaa8\ub358 \uc790\ubc14 \uc778 \uc561\uc158 3\uc7a5"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\uac1c\uc694<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\uc804 \uc7a5\uc5d0\uc11c\ub294 &#8216;\ub3d9\uc791 \ud30c\ub77c\ubbf8\ud130\ud654&#8217; \uc5d0 \ub300\ud574 \ubc30\uc6e0\ub2e4.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong><span style=\"color:#cf2e2e\" class=\"tadv-color\">\uac12(value)\uac00 \ub4e4\uc5b4\uac00\uc57c \ud558\ub294 \uc704\uce58\uc778 \uba54\uc18c\ub4dc \uc544\uaddc\uba3c\ud2b8\uc5d0 \u2018\ud589\uc704\u2019 \uc790\uccb4\uac00 \ub4e4\uc5b4\uac00\ub294 \uac83\uc774 \ubc14\ub85c \u2018\ub3d9\uc791 \ud30c\ub77c\ubbf8\ud130\ud654\u2019 \uc774\ub2e4.<\/span><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&#8216;\ub78c\ub2e4 \ud45c\ud604\uc2dd&#8217;\uc5d0 \ub300\ud574 \uc774\uc804 2\uc7a5\uc5d0\uc11c\ub3c4 \uc7a0\uae50 \uc5b8\uae09\uc744 \ud588\ub294\ub370, \uc774\ubc88 3\uc7a5\uc740 \uadf8 \ub78c\ub2e4 \ud45c\ud604\uc2dd\uc5d0 \ub300\ud574 \uc608\uc81c\ub97c \ud1b5\ud574 \uc870\uae08 \uae4a\uac8c \uc0b4\ud3b4\ubcf4\ub294 \uc2dc\uac04\uc744 \uac16\ub3c4\ub85d \ud55c\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. \ub78c\ub2e4 \ud45c\ud604\uc2dd<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ub3d9\uc791 \ud30c\ub77c\ubbf8\ud130\ub97c \uc774\uc6a9\ud574\uc11c \ub3d9\uc791(\ud639\uc740 \uba54\uc18c\ub4dc) \uc790\uccb4\uac00 \ud30c\ub77c\ubbf8\ud130\ud654 \ub418\uba70 \uc870\uae08 \ub354 \uc720\uc5f0\ud558\uace0 \uc7ac\uc0ac\uc6a9 \ud560 \uc218 \uc788\ub294 \ucf54\ub4dc\ub97c \ub9cc\ub4e4 \uc218 \uc788\uc5c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud558\uc9c0\ub9cc, \uadf8\ub798\ub3c4 \ud574\uacb0\ub418\uc9c0 \uc54a\ub294 \ubb38\uc81c\uac00 \uc788\ub294\ub370<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&#8216;\ucf54\ub4dc\uac00 \uae54\ub054\ud558\uc9c0 \ubabb\ud558\ub2e4&#8217;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">(\ubb3c\ub860 \ub78c\ub2e4 \ud45c\ud604\uc2dd\ub3c4 \uc0b4\uc9dd \ub9db\ubcf4\uc558\uc9c0\ub9cc) \uc0ac\uacfc\ub97c \ud544\ud130\ub9c1\ud558\ub294 filter \uba54\uc18c\ub4dc\ub97c \uc7ac\uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ucf54\ub4dc\ub85c \ub9cc\ub4e4\uae30 \uc704\ud574\uc11c, \uc678\ubd80\uc5d0\uc11c \ud074\ub798\uc2a4(Predicate \ud074\ub798\uc2a4)\ub97c \ub9cc\ub4e4\uace0, \uadf8 \ud074\ub798\uc2a4\ub97c \uad6c\ud604\ud55c Predicate \uba54\uc18c\ub4dc\uae4c\uc9c0 \ub9cc\ub4e4\uac8c \ub418\uc5c8\ub2e4. filter \uba54\uc18c\ub4dc\ub9cc \ubcf4\uba74 \ucf54\ub4dc\uac00 \uac04\uacb0\ud558\uace0 \uae54\ub054\ud558\uc9c0\ub9cc, \uc0ac\uc2e4 filter \uc678\ubd80\uc5d0\uc11c \ub108\ubb34 \ub9ce\uc740 \ucf54\ub4dc\ub97c \uc791\uc131\ud558\uac8c \ub418\ub294 \uc624\ubc84\ud5e4\ub4dc\uac00 \ubc1c\uc0dd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub798\uc11c \uadf8 \uc624\ubc84\ud5e4\ub4dc\ub9c8\uc800 \uc904\uc77c \uc218 \uc788\ub3c4\ub85d, <\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><span style=\"color:#cf2e2e\" class=\"tadv-color\"><strong>\uc77c\uc885\uc758 &#8216;\uc775\uba85 \ud568\uc218&#8217;\ucc98\ub7fc \uba54\uc18c\ub4dc\ub97c \uc815\uc758\uc640 \ub3d9\uc2dc\uc5d0 \ub2e4\ub978 \uba54\uc18c\ub4dc\uc758 \ud30c\ub77c\ubbf8\ud130\ub85c \uc804\ub2ec\uc2dc\ud0ac \uc218 \uc788\ub294 \uae30\ubc95<\/strong><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 &#8216;\ub78c\ub2e4 \ud45c\ud604\uc2dd&#8217; \uc774\ub77c \ud560 \uc218 \uc788\uacd8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\uc0ac\uc2e4 \uc774\ubc88 3\uc7a5\uc740 \ubaa8\ub358 \uc790\ubc14\uc5d0 \ub300\ud55c \uac1c\ub150\uc801 \uc815\ub9ac\ubcf4\ub2e4\ub294, \uc2e4\ubb34\uc5d0 \uace7\ubc14\ub85c \ud3b8\ud788 \uc0ac\uc6a9\ud558\uae30 \uc27d\uac8c\ub054 &#8216;\uc218\ub9ce\uc740 \uc608\uc81c&#8217; \uc704\uc8fc\ub85c \uc791\uc131\uc774 \ub418\uc5b4 \uc788\uc5b4\uc11c&#8230; \ud559\uc2b5\uc758 \uc758\ubbf8\ubcf4\ub2e4\ub294 \uadf8\ub0e5 \uc2b5\ub4dd? \uc5d0 \ub300\ud55c \uc758\ubbf8\ub85c \uc811\uadfc\ud558\ub294\uac8c \uc88b\uc744 \uac83 \uac19\ub2e4.<\/p><\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">2. \uadf8\ub798\uc11c \ub78c\ub2e4\ub780 \ubb34\uc5c7\uc778\uac00<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ucc45 \ubcf8\ubb38 &#8216;3.1 \ub78c\ub2e4\ub780 \ubb34\uc5c7\uc778\uac00?&#8217;\uc5d0\uc11c\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \uc815\uc758\ud55c\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\uba54\uc18c\ub4dc\ub85c \uc804\ub2ec\ud560 \uc218 \uc788\ub294 \uc775\uba85 \ud568\uc218\ub97c \ub2e8\uc21c\ud654 \ud55c \uac83.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub9ac\uace0 \ub78c\ub2e4\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \ud2b9\uc131\uc744 \uac00\uc9c4\ub2e4<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\uc775\uba85\uc131<ul><li>&#8216;\uc774\ub984 \ubb50\uc9d3\uc9c0&#8217; \uc5d0 \ub300\ud55c \uace0\ubbfc\uac70\ub9ac\uac00 \uc904\uc5b4\ub4e0\ub2e4<\/li><\/ul><\/li><li>\ud568\uc218 <ul><li>\uba54\uc18c\ub4dc\ub77c\uace0 \ud558\uc9c0 \uc54a\ub294\ub2e4. \uc5b4\ub5a4 \ud074\ub798\uc2a4\uc5d0 \uc885\uc18d\ub418\uc5b4 \uc788\uc9c0 \uc54a\uae30 \ub54c\ubb38\uc5d0 &#8216;\uae30\ub2a5&#8217;\uc758 \uce21\uba74\uc774 \uac15\ud55c &#8216;\ud568\uc218&#8217; \ub77c\ub294 \uc774\ub984\uc744 \uac00\uc9d0<\/li><\/ul><\/li><li>\uc804\ub2ec<ul><li>2\uae09 \uac12(\uba54\uc18c\ub4dc)\uc744 1\uae09 \uac12(\ubcc0\uc218)\uc73c\ub85c \uac04\uc8fc\ud558\ub294 \uadf8 \ubaa8\ub358 \uc790\ubc14\uc758 \uae30\ub2a5\uc744 \ub78c\ub2e4\uc5d0\ub3c4 \uc801\uc6a9 \uac00\ub2a5<\/li><\/ul><\/li><li>\uac04\uacb0\uc131<ul><li>\uac04\uacb0\ud558\ub2e4.<\/li><\/ul><\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8 \uc678\uc5d0 \ucc45\uc73c\ub85c\ub294 &#8216;\ub78c\ub2e4&#8217;\ub77c\ub294 \uc6a9\uc5b4\ub294 \ubbf8\uc801\ubd84\ud559 \ud559\uacc4\uc5d0\uc11c \uac1c\ubc1c\ud55c \uc2dc\uc2a4\ud15c\uc5d0\uc11c \uc720\ub798\ud588\ub2e4&#8230;&#8230;\uace0 \ud558\uc9c0\ub9cc \ub09c \uc77d\uc9c0 \uc54a\uc558\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub610\ud55c \ub78c\ub2e4\ub97c \uc0ac\uc6a9\ud558\uc600\uc744 \ub54c &#8216;\ucf54\ub4dc\uac00 \uc904\uc5b4\ub4dc\ub294&#8217; \ud6a8\uacfc\ub098, \ud45c\ud604\uc2dd\uc5d0 \ub300\ud55c \uc124\uba85\ub3c4&#8230;.. \uc77d\uc9c0 \uc54a\uc558\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3. \ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4\uc5d0\uc11c \ub78c\ub2e4\ub77c\ub294 \uac83\uc774 \ub300\ud45c\uc801\uc73c\ub85c \uc0ac\uc6a9 \uac00\ub2a5\ud558\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ubb34\uc2a8 \ub9d0\uc778\uc9c0\ub294&#8230; \uacc4\uc18d \uc77d\uc5b4\ubcf4\uba74 \uc774\ud574\uac00 \ub420 \uac83\uc774\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4<ul><li>\uc778\ud130\ud398\uc774\uc2a4\uac00 \uad6c\ud604\ud558\ub294 \ucd94\uc0c1\ud654\ub41c \uba54\uc18c\ub4dc\uac00 1\uac1c \uc788\ub294 \uc778\ud130\ud398\uc774\uc2a4<\/li><\/ul><\/li><\/ul>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\">[expand title=&#8221;\ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4\ub97c \ubaa8\ub978\ub2e4\uba74&#8221; swaptitle=&#8221;\ub2eb\uae30&#8221;]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4\uac00 \ubb54\uc9c0 \uc798 \ubaa8\ub974\uaca0\ub2e4\uba74, \uadf8\ub0e5 \uac1c\ubc1c\ud558\uba74\uc11c, \uacf5\ubd80\ud558\uba74\uc11c \ud55c\ubc88\ucbe4\uc740 \uc0ac\uc6a9\ud588\ub358 Runnable \uc778\ud130\ud398\uc774\uc2a4 \uc0dd\uac01\ud558\uba74 \uc774\ud574\uac00 \uc27d\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ubcf4\ud1b5 Runnable\uc740 \uba40\ud2f0\uc2a4\ub808\ub4dc\ub85c \ub85c\uc9c1\uc744 \uc218\ud589\uc2dc\ud0a4\uace0 \uc2f6\uc744 \ub54c \uc0ac\uc6a9\ud558\ub294 \uc778\ud130\ud398\uc774\uc2a4\uc778\ub370, \ud06c\uac8c \ub450 \ubc94\uc704\ub85c \ub3d9\uc791\uc744 \ucabc\uac1c\ubcfc \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\ub0b4\uac00 \uc218\ud589\uc2dc\ud0a4\uace0 \uc2f6\uc740 \ub3d9\uc791<ul><li>(\uc608\ub97c \ub4e4\uc5b4)\uc0ac\uacfc\ub97c \ud544\ud130\ub9c1<\/li><\/ul><\/li><li>\ucef4\ud4e8\ud130(?)\uc5d0\uac8c \uc704\uc784\uc2dc\ud0a4\uace0 \uc2f6\uc740 \ub3d9\uc791<ul><li>\uc2a4\ub808\ub4dc\ub97c \uc5ec\ub7ec\uac1c \ucabc\uac1c, \uc54c\uc544\uc11c \ucabc\uac20 \uc2a4\ub808\ub4dc\ubcc4\ub85c &#8216;\uc5b4\ub5a4 \ub3d9\uc791&#8217;\uc744 \uc218\ud589<\/li><\/ul><\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ubcf4\ud1b5 Runnable \uc778\ud130\ud398\uc774\uc2a4\ub97c \uad6c\ud604\ud558\ub294 \ud074\ub798\uc2a4\ub97c \ub9cc\ub4e4\uace0, \uadf8 \ud074\ub798\uc2a4 \ud0c0\uc785\uc758 \uc624\ube0c\uc81d\ud2b8\ub97c \ub9cc\ub4e4\uba74, \ubc18\ub4dc\uc2dc \uad6c\ud604\ud574 \uc8fc\uc5b4\uc57c \ud558\ub294\uac8c run()\uc774\ub77c\ub294 \uba54\uc18c\ub4dc\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&#8216;\ucef4\ud4e8\ud130\uc5d0\uac8c \uc704\uc784\uc2dc\ud0a4\uace0 \uc2f6\uc740 \ub3d9\uc791&#8217; \uc740 \uc774\ubbf8 Runnable \uc5d0 \uad6c\ud604\ub418\uc5b4 \uc788\uace0, \ub098\ub294 \ub0b4\uac00 \uc218\ud589\uc2dc\ud0a4\uace0 \uc2f6\uc740 \ub3d9\uc791\uc744<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud568\uc218(\uae30\ub2a5)\ud615 \uc778\ud130\ud398\uc774\uc2a4\uc778 Runnable\uc744 \uad6c\ud604(implement)\ud558\uc5ec, &#8216;\ub0b4\uac00 \uc218\ud589\uc2dc\ud0a4\uace0 \uc2f6\uc740 \ub3d9\uc791(\ud568\uc218!\uae30\ub2a5!!)&#8217; \ub9cc \uc815\uc758\ud558\uace0 \ub098\uba38\uc9c0\ub294 \uc0c1\uc704 \ud074\ub798\uc2a4\uc778 \uc778\ud130\ud398\uc774\uc2a4\uc5d0\uac8c \uc704\uc784<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud558\ub294 \uac83\uc774\ub2e4. \uadf8 \ub54c, \uc815\uc758\ub41c Runnable \ub97c &#8216;\ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4&#8217; \ub77c\uace0 \ud558\ub294 \uac83\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">[\/expand]<\/p>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Runnable \uc778\ud130\ud398\uc774\uc2a4\uc758 \uc608\uc81c\ub97c \ub4e4\uc5b4\ubcf4\uc790.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Runnable \uc778\ud130\ud398\uc774\uc2a4\ub97c \uad6c\ud604\ud558\uac8c \ub418\uba74, \uac1c\ubc1c\uc790\uac00 \ubc18\ub4dc\uc2dc \uc7ac\uc815\uc758(Override) \ud574\uc57c \ud558\ub294 \uba54\uc18c\ub4dc\uac00 \uc788\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><code data-enlighter-language=\"java\" class=\"EnlighterJSRAW\">run()<\/code><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadfc\ub370 \ubb38\uc81c\ub294&#8230;.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 run \uba54\uc18c\ub4dc\ub97c \uad6c\ud604\ud558\ub824\uace0 \ub2e4\uc74c\uacfc \uac19\uc740 \uadc0\ucc2e\uc740 \uc7a1\ub2e4\uad6c\ub9ac\ud55c \ucf54\ub4dc\ub4e4\ub3c4 \uac19\uc774 \ud3ec\ud568\uc774 \ub418\uc5b4\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"539\" height=\"163\" src=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-1.png\" alt=\"\" class=\"wp-image-112\" srcset=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-1.png 539w, https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-1-300x91.png 300w\" sizes=\"auto, (max-width: 539px) 100vw, 539px\" \/><figcaption>\uadc0\ucc2e\ub2e4!<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc9c1\uc811 \uc775\uba85 \ud074\ub798\uc2a4\ub97c \uc77c\uc77c\ud788 \uc0dd\uc131\ud574\uc11c Runnable \uc778\ud130\ud398\uc774\uc2a4\ub97c \uad6c\ud604\ud574\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud558\uc9c0\ub9cc \ub78c\ub2e4\ub97c \uc0ac\uc6a9\ud558\uba74?<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"664\" height=\"47\" src=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-2.png\" alt=\"\" class=\"wp-image-113\" srcset=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-2.png 664w, https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-2-300x21.png 300w\" sizes=\"auto, (max-width: 664px) 100vw, 664px\" \/><figcaption>\uc548\uadc0\ucc2e\ub2e4!<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uae30\uc874\uc5d0 2\uae09 \uac12\uc774\uc5c8\ub358 &#8216;\uba54\uc18c\ub4dc&#8217; \ub97c 1\uae09 \uac12\ucc98\ub7fc \ud30c\ub77c\ubbf8\ud130\ud654 \ud558\ub294 \uc5b8\uc5b4\ucc28\uc6d0\uc5d0\uc11c\uc758 \uae30\ub2a5\ucd94\uac00 \ud558\ub098\ub9cc\uc73c\ub85c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&#8216;\uc5b5\uc9c0\ub85c 2\uae09 \uac12\uc778 &#8216;\uba54\uc18c\ub4dc&#8217;\ub97c 1\uae09\uac12\uc778 \uac1d\uccb4\ud654(\uc775\uba85 \ud074\ub798\uc2a4 \uad6c\ud604)\ub97c \ud560 \ud544\uc694\uac00 \uc5c6\ub2e4 \uc774\ub9d0\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">\uadf8\ub7f0\ub370 \uc0ac\uc2e4 \uac1c\ub150\uc801\uc73c\ub85c\ub294, \ub78c\ub2e4 \uc790\uccb4\uac00 \ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4\ub97c implement\ud558\ub294 \uac83\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub7fc \uc774\uc81c&#8230;.. \ub2e8\ub77d \uc11c\ub450\uc5d0 \ub9d0\ud588\ub358 &#8216;\ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4\uc5d0\uc11c \ub78c\ub2e4\ub97c \uc0ac\uc6a9 \uac00\ub2a5\ud558\ub2e4&#8217; \uac00 \ubb34\uc2a8 \ub9d0\uc778\uc9c0 \uc774\ud574\uac00 \ub420 \uac83\uc774\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4. \uc2e4\ud589 \uc5b4\ub77c\uc6b4\ub4dc \ud328\ud134<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">jdbc\ub85c DB\uc758 \uac12\uc744 \uaebc\ub0b4\uac70\ub098, \uac00\uacf5\ud558\ub294 \uac83\uc744 \ub9ce\uc774 \ud574 \ubcf4\uc558\ub2e4. <\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\uc790\uc6d0\uc744 \uc5f4\uace0<\/li><li>\ud558\uace0\uc2f6\uc740 \uc77c\uc744 \ud558\uace0<\/li><li>\uc790\uc6d0\uc744 \ub2eb\ub294\ub2e4<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub97c &#8216;\uc21c\ud658 \ud328\ud134&#8217;\uc774\ub77c\uace0 \ud55c\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"490\" height=\"377\" src=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-3.png\" alt=\"\" class=\"wp-image-116\" srcset=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-3.png 490w, https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-3-300x231.png 300w\" sizes=\"auto, (max-width: 490px) 100vw, 490px\" \/><figcaption>\uc774\uac74 \uc2e4\ud589 \uc5b4\ub77c\uc6b4\ub4dc \ud328\ud134<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc704 \uc18c\uc2a4\ucf54\ub4dc\ucc98\ub7fc processFile \uba54\uc18c\ub4dc\ub294 \ud30c\uc77c\uc744 \uc5f4\uc5b4\uc11c(\uc790\uc6d0\uc744 \uc5f4\uace0), \ud558\uace0\uc2f6\uc740 \uc77c\uc744 \ud558\uace0(\ud55c\uc904 \uc77d\uace0), \ud30c\uc77c\uc744 \ub2eb\ub294(\uc790\uc6d0\uc744 \ub2eb\ub294) \ucf54\ub4dc\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadfc\ub370, \uc774 \uc2e4\ud589 \uc5b4\ub77c\uc6b4\ub4dc \ud328\ud134\uc758 \ucf54\ub4dc\ub294 <\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\ud55c\ubc88 \uc2e4\ud589\ud560\ub54c\ub9c8\ub2e4 \ud55c \uc904\ub9cc \uc77d\uc74c<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc758 \ub2e8\uc810\uc744 \uac00\uc9c0\uace0 \uc788\ub2e4. \ub450\uc904\uc744 \uc77d\uace0 \uc2f6\uc73c\uba74 \ub450\ubc88 \ud638\ucd9c\ud574\uc57c \ud558\uace0(\uccab\uc904\uc774 \ub450\ubc88 \ub098\uc624\uaca0\uc9c0\ub9cc \ubb34\uc2dc\ud558\uc790..), \ud2b9\uc815 \ub2e8\uc5b4\ub098 \ud328\ud134\uc744 \ucc3e\uace0 \uc2f6\ub2e4\uba74 processFile \uba54\uc18c\ub4dc \uc790\uccb4\ub97c \uc218\uc815\ud574\uc57c \ud558\ub294 \ubb38\uc81c\uc810\uc774 \uc788\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8 \ub54c processFile \uc790\uccb4\uc5d0 \ub3d9\uc791 \ud30c\ub77c\ubbf8\ud130\ub97c \ucd94\uac00 &amp; \ub78c\ub2e4\ud654(?) \ud558\uc5ec, \uc2e4\ud589 \uc5b4\ub77c\uc6b4\ub4dc \ud328\ud134\uc758 boiler plate\ub97c \ube80 &#8216;\ud55c\uc904 \uc77d\ub294 \uc791\uc5c5 &amp; \ub450\uc904 \uc77d\ub294 \uc791\uc5c5&#8217; \uc744 \uac04\ub2e8\ud558\uac8c \uc815\uc758\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"526\" height=\"68\" src=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-8.png\" alt=\"\" class=\"wp-image-121\" srcset=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-8.png 526w, https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-8-300x39.png 300w\" sizes=\"auto, (max-width: 526px) 100vw, 526px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"535\" height=\"62\" src=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-9.png\" alt=\"\" class=\"wp-image-122\" srcset=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-9.png 535w, https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-9-300x35.png 300w\" sizes=\"auto, (max-width: 535px) 100vw, 535px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"966\" height=\"1024\" src=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/IMG_73F252067BCF-1-966x1024.jpeg\" alt=\"\" class=\"wp-image-124\" srcset=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/IMG_73F252067BCF-1-966x1024.jpeg 966w, https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/IMG_73F252067BCF-1-283x300.jpeg 283w, https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/IMG_73F252067BCF-1-768x814.jpeg 768w, https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/IMG_73F252067BCF-1.jpeg 1000w\" sizes=\"auto, (max-width: 966px) 100vw, 966px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">BufferedReaderProcessor \ub77c\ub294 \ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4\ub97c \ub9cc\ub4e4\uace0, process()\uc5d0\uc11c &#8216;\ubb34\uc2a8 \ub3d9\uc791\uc744 \uc218\ud589\ud560 \uc9c0&#8217; \uc5d0 \ub300\ud574 caller\uc5d0\uac8c \uc704\uc784\uc2dc\ucf1c\uc11c, processFile\uc774 \ub3d9\uc791 \ud30c\ub77c\ubbf8\ud130\ub97c \ubc1b\uc544 \uadf8 \ub3d9\uc791\uc744 \uc218\ud589\ud558\ub294 \uc77c\ub828\uc758 \uacfc\uc815\uc774 \uc798~ \uc815\ub9ac\ub418\uc5b4\uc788\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">5. \ub300\ud45c\uc801\uc778 \ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc18c\uac1c\ud558\uc9c0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4 : \uc624\uc9c1 \ud558\ub098\uc758 \ucd94\uc0c1 \uba54\uc18c\ub4dc\ub97c \uac16\uace0 \uc788\ub294 \uc778\ud130\ud398\uc774\uc2a4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud568\uc218 \ub514\uc2a4\ud06c\ub9bd\ud130 : \ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4\uc758 \ucd94\uc0c1 \uba54\uc18c\ub4dc \uc2dc\uadf8\ub2c8\ucc98(\ud30c\ub77c\ubbf8\ud130 \ud0c0\uc785+\ub9ac\ud134\ud0c0\uc785)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ubaa8\ub358 \uc790\ubc14\uc5d0\uc11c\ub294 \ub300\ud45c\uc801\uc73c\ub85c Predicate, Consumer, Function \ub77c\ub294 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc81c\uacf5\ud574 \uc900\ub2e4. <\/p>\n\n\n\n<h2 class=\"has-medium-font-size wp-block-heading\">5-1. Predicate<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>\uba54\uc18c\ub4dc \uc2dc\uadf8\ub2c8\ucc98<ul><li>in : \uc624\ube0c\uc81d\ud2b8\uc778 \uc81c\ub124\ub9ad \ud0c0\uc785 &#8216;T&#8217;<\/li><li>out : boolean<\/li><\/ul><\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc624\ube0c\uc81d\ud2b8\uc778 \uc81c\ub124\ub9ad \ud0c0\uc785 &#8216;T&#8217;\ub97c \ud30c\ub77c\ubbf8\ud130\ub85c \ubc1b\uc544, boolean \uc73c\ub85c \ub9ac\ud134 \ud574 \uc8fc\ub294 \uc778\ud130\ud398\uc774\uc2a4<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"559\" height=\"319\" src=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-10.png\" alt=\"\" class=\"wp-image-127\" srcset=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-10.png 559w, https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-10-300x171.png 300w\" sizes=\"auto, (max-width: 559px) 100vw, 559px\" \/><figcaption>Predicate<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">listOfStrings\ub77c\ub294 \ubb38\uc790\uc5f4 \ub9ac\uc2a4\ud2b8 \uc911\uc5d0\uc11c, nonEmptyStringPredicate \ub77c\ub294 \ub3d9\uc791\uc774 true\uc778 \uacb0\uacfc\ub9cc nonEmpty\uc5d0 \ub2f4\uae30\ub294 \uc0d8\ud50c \ucf54\ub4dc\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">5-2. Consumer<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\uba54\uc18c\ub4dc \uc2dc\uadf8\ub2c8\ucc98<ul><li>in : \uc624\ube0c\uc81d\ud2b8\uc778 \uc81c\ub124\ub9ad \ud0c0\uc785 &#8216;T&#8217;<\/li><li>out : void<\/li><\/ul><\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"522\" height=\"294\" src=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-11.png\" alt=\"\" class=\"wp-image-128\" srcset=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-11.png 522w, https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-11-300x169.png 300w\" sizes=\"auto, (max-width: 522px) 100vw, 522px\" \/><figcaption>Consumer. \ub9d0 \uadf8\ub300\ub85c \ud30c\ub77c\ubbf8\ud130\ub97c \ud761\uc218\ud558\uace0 \uc554\uac83\ub3c4 \uc548\uc8fc\ub124 \u3160\u3160<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">1,2,3,4,5 \uc22b\uc790 \ubc30\uc5f4\uc744 \ubc1b\uc544\uc11c, void\ub97c \ub9ac\ud134\ud558\ub2c8 \uba54\uc18c\ub4dc \uadf8 \uc790\uccb4\uc801\uc73c\ub85c \ubb34\uc5b8\uac00(\ucd9c\ub825)\ub97c \ud558\ub294 \uc0d8\ud50c \ucf54\ub4dc\uc774\ub2e4.<\/p>\n\n\n\n<h2 class=\"has-medium-font-size wp-block-heading\">5-3. Function<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>\uba54\uc18c\ub4dc \uc2dc\uadf8\ub2c8\ucc98<ul><li>in : \uc81c\ub124\ub9ad \ud0c0\uc785  &#8216;T&#8217;<\/li><li>out : \ub610\ub2e4\ub978 \uc81c\ub124\ub9ad \ud0c0\uc785 &#8216;R&#8217;<\/li><\/ul><\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"567\" height=\"371\" src=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-12.png\" alt=\"\" class=\"wp-image-129\" srcset=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-12.png 567w, https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-12-300x196.png 300w\" sizes=\"auto, (max-width: 567px) 100vw, 567px\" \/><figcaption>Function<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Function \ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc774\uc6a9\ud558\uc5ec,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">List&lt;String&gt;  \ud0c0\uc785\uc744 \ud30c\ub77c\ubbf8\ud130\ub85c \ubc1b\uc544\uc11c, \ub610 \ub2e4\ub978(\uac19\uc544\ub3c4 \ub428. \uc9dc\ub294\ub188 \ub9c8\uc74c) \ud0c0\uc785\uc778 List&lt;Integer&gt; \ub85c \ub9ac\ud134\ud574 \uc8fc\ub294 \uc0d8\ud50c \ucf54\ub4dc\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uae30\ud0c0 \ub354 \ub9ce\uc740 \ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4\uac00 \uc788\uc73c\ub2c8, \ud55c\ubc88 \uc2a5 \ubcf4\uace0 \ud544\uc694\ud55c \uc778\ud130\ud398\uc774\uc2a4\uac00 \uc788\uc744 \ub54c \uc774\ub97c \uba4b\uc788\uac8c \uad6c\ud604\ud574 \ubcf4\uc790.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"622\" height=\"711\" src=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-13.png\" alt=\"\" class=\"wp-image-131\" srcset=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-13.png 622w, https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-13-262x300.png 262w\" sizes=\"auto, (max-width: 622px) 100vw, 622px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">6. \ud0c0\uc785 \ucd94\ub860<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ub808\uac70\uc2dc \uc790\ubc14 \uc911, \uac00\uc7a5 \ud3b8\ud588\ub358(?) \uac83 \uc911 \ud558\ub098\uac00 &#8216;\ucef4\ud30c\uc77c\ub7ec\uc5d0 \uc758\ud55c \uc790\ub3d9 \ud0c0\uc785 \ucd94\ub860&#8217;\uc774\uc5c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\ub2e4\uc774\uc544\ubaac\ub4dc \uc624\ud37c\ub808\uc774\ud130<ul><li>List&lt;String&gt; a = new ArrayList&lt;&gt;();<\/li><\/ul><\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ub78c\ub2e4\ub97c \uc0ac\uc6a9\ud558\ub294 \uacf3\uc5d0\uc11c\ub3c4, \ubaa8\ub358 \uc790\ubc14\ub294 \ub9e4\uc6b0 \ud3b8\ud558\uac8c \uc790\ub3d9\uc73c\ub85c \ud0c0\uc785\uc744 \ucd94\ub860\ud574 \uc8fc\uc5b4, \uac1c\ubc1c\uc790\uc758 \ud53c\ub85c\ub3c4\ub97c \uc904\uc774\uac8c \ud574 \uc8fc\uace4 \ud55c\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"619\" height=\"65\" src=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-14.png\" alt=\"\" class=\"wp-image-133\" srcset=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-14.png 619w, https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-14-300x32.png 300w\" sizes=\"auto, (max-width: 619px) 100vw, 619px\" \/><figcaption>apple\uc758 \ud0c0\uc785\uc774 \ubb54\ub370!?<\/figcaption><\/figure>\n\n\n\n<ol class=\"wp-block-list\"><li>filter\uc758 \uba54\uc18c\ub4dc \ud0c0\uc785\uc774 \ubb50\uc9c0?<\/li><li>List&lt;Apple&gt;, Predicate&lt;Apple&gt; \uc774\uaca0\uc9c0?<\/li><li>\uadf8\ub9ac\uace0 \ub78c\ub2e4\uc2dd\uc758 \ub9ac\ud134 \ud0c0\uc785\uc774 boolean\uc774\ub124?<\/li><li>\uadf8\ub7fc Apple\ud0c0\uc785\uc744 \ubc1b\uace0, boolean\uc744 \ub9ac\ud134\ud558\ub294 Predicate \uc774\uad70! \uadf8\ub7fc apple \ubcc0\uc218\uc758 \ud0c0\uc785\uc740 Apple \ud0c0\uc785\uc77c\uac70\uc784 \u3147\u3147<\/li><\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub7f0 \uc2dd\uc73c\ub85c \ucd94\ub860\ud55c\ub2e4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e8, \uc774\ub294 &#8216;\ud0c0\uc785\uc744 \uc0dd\ub7b5\ud574 \uc801\uc744 \uc218 \uc788\ub294 \ubc29\ubc95\uc774 \uc788\ub2e4&#8217; \uc774\uc9c0, \uc774\uac8c \ubb34\uc870\uac74 \uc88b\ub2e4\uace0 \ubcfc \uc21c \uc5c6\uc74c. \uac00\ub3c5\uc131\uc5d0 \ub530\ub77c \uac00\uc7a5 \ub9de\ub2e4\uace0 \uc0dd\uac01\ud558\ub294 \ubc29\ubc95\uc73c\ub85c \uad6c\ud604\ud574\uc57c \ud560 \uac83\uc774\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">7. \uba54\uc18c\ub4dc \ucc38\uc870<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"444\" height=\"57\" src=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-15.png\" alt=\"\" class=\"wp-image-135\" srcset=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-15.png 444w, https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-15-300x39.png 300w\" sizes=\"auto, (max-width: 444px) 100vw, 444px\" \/><figcaption>\ub108\uc904\ub108\uc904 \ub78c\ub2e4\ub78c\ub2e4<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"486\" height=\"42\" src=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-16.png\" alt=\"\" class=\"wp-image-136\" srcset=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-16.png 486w, https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-16-300x26.png 300w\" sizes=\"auto, (max-width: 486px) 100vw, 486px\" \/><figcaption>\uae54\ub054\uae54\ub054 \uba54\uc18c\ub4dc \ucc38\uc870<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc0ac\uc2e4 \uc774\uac74 &#8216;\ubb38\ubc95&#8217;\uc5d0 \ub300\ud55c \uc124\uba85\uc774\uace0, \ubb38\ubc95\uc740 &#8216;\uc678\uc6b0\ub294&#8217; \uc601\uc5ed\uc774\ub77c \uc6d0\ub9ac\uc5d0 \ub300\ud574 \uadf8\ub807\uac8c \uc124\uba85\ud560 \uac83\uc774 \ubcc4\ub85c \uc5c6\uc74c&#8230;.. &#8216;\uadf8\ub0e5 \uc774\ub807\uac8c \uc4f8 \uc218 \uc788\uc73c\ub2c8\uae4c \uc678\uc6cc\ub46c!&#8217;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"548\" height=\"475\" src=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-17.png\" alt=\"\" class=\"wp-image-138\" srcset=\"https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-17.png 548w, https:\/\/scrutineer.co.kr\/wordpress\/wp-content\/uploads\/2020\/12\/image-17-300x260.png 300w\" sizes=\"auto, (max-width: 548px) 100vw, 548px\" \/><figcaption>\uc678\uc6cc\ub77c \uc678\uc6cc.<\/figcaption><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\uc774\ud6c4 \ub78c\ub2e4 &amp; \uba54\uc18c\ub4dc \ucc38\uc870 \ud65c\uc6a9\ud558\uae30, \uc5ed\uc815\ub82c, (+\uc801\ubd84) \uac19\uc740 \uacbd\uc6b0\ub294 \uacfc\uac10\ud788 \uc0dd\ub7b5<\/p><cite>\uadc0\ucc2e\uc544\uc11c..<\/cite><\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">8. \ud5c9\ud5c9\ud5c9\ud5c9&#8230;.\ub9c8\uce58\uba70&#8230;<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>\ub78c\ub2e4 \ud45c\ud604\uc2dd\uc740 \uc775\uba85\ud568\uc218\uc758 \uc77c\uc885\uc774\ub2e4.<ul><li>\uc0ac\uc2e4 \uadf8\ub0e5 js\uc758 \uc775\uba85 \ud568\uc218\ub77c\uace0 \uc0dd\uac01\ud574\ub3c4 \ub41c\ub2e4. \ub420\uae4c? (\uc0ac\uc2e4 \ub09c \uadf8\ub0e5 &#8216;\uc775\uba85\ud568\uc218\uc784&#8217; \uc774\ub77c\uace0 \uc774\ud574\ud558\uace0 \uc788\uc5c8\uc74c&#8230;)<\/li><\/ul><\/li><li>\ub78c\ub2e4 \ud45c\ud604\uc2dd\uc73c\ub85c \uc775\uba85\ud074\ub798\uc2a4\ub97c \uc0dd\ub7b5\ud558\uc5ec, \ucf54\ub4dc\ub97c \uac04\uacb0\ud558\uac8c \ub9cc\ub4e4 \uc218 \uc788\ub2e4<ul><li>\uac00\ub3c5\uc131 \uc88b\uc544\uc9c0\uc796\uc544!<\/li><\/ul><\/li><li>\ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4 : &#8216;\ud558\ub098&#8217;\uc758 \ucd94\uc0c1 \uba54\uc18c\ub4dc\ub9cc\uc744 \uc815\uc758\ud558\ub294 \uc778\ud130\ud398\uc774\uc2a4\ub2e4. \ub450\uac1c\ub294 \uc548\ub428.<ul><li>\ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uae30\ub300\ud558\ub294 \uacf3\uc5d0\uc11c\ub9cc \ub78c\ub2e4\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4.<\/li><li>\uc65c?<ul><li>\ub78c\ub2e4\ub85c \ud638\ucd9c\ud560 \ub550 \uba54\uc18c\ub4dc\uc758 \uc774\ub984\uc774 \uc0dd\ub7b5\ub41c\ub2e4. \uc778\ud130\ud398\uc774\uc2a4\uac00 \ucd94\uc0c1\uba54\uc18c\ub4dc\ub97c 2\uac1c \uc774\uc0c1 \uac00\uc838\ubc84\ub9b4 \uacbd\uc6b0\uc5d0<br>\ucef4\ud30c\uc77c\ub7ec\uc758 \uc785\uc7a5\uc744 \ub4e4\uc5b4\ubcf4\uba74, &#8216;\ub300\uccb4 \ubb58 \ud638\ucd9c\ud558\ub77c\uace0&#8217; \ub77c\uace0 \ud560 \uac83\uc774\ub2e4.<\/li><li>\uc2ec\uc9c0\uc5b4 2\uac1c\uc758 \ucd94\uc0c1\uba54\uc18c\ub4dc\uac00 \ud30c\ub77c\ubbf8\ud130 \ud0c0\uc785, \ub9ac\ud134\ud0c0\uc785\ub9c8\uc800 \uac19\uc544\ubc84\ub9ac\uba74 \uadf8\ub550 \ucef4\ud30c\uc77c\ub7ec\ub294 \ucee4\ub155 &#8216;\uc0ac\ub78c\ub3c4 \uad6c\ubd84 \ubabb\ud558\ub294&#8217; <br>\uc9c0\uacbd\uc5d0 \ub2e4\ub2e4\ub978\ub2e4. \uadf8\ub798\uc11c \ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uae30\ub300\ud558\ub294 \uacf3\uc5d0\uc11c\ub9cc \ub78c\ub2e4 \uc0ac\uc6a9 \uac00\ub2a5\ud568.<\/li><\/ul><\/li><\/ul><\/li><li>\ub78c\ub2e4\ub97c \uc774\uc6a9\ud558\uc5ec \ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4\uc758 \ucd94\uc0c1 \uba54\uc18c\ub4dc\ub97c \uc989\uc11d\uc73c\ub85c \uc81c\uacf5\ud560 \uc218 \uc788\uc73c\uba70, <strong>&#8216;\ub78c\ub2e4 \ud45c\ud604\uc2dd \uc804\uccb4\uac00 \ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4\uc758 \uc778\uc2a4\ud134\uc2a4\ub85c \ucde8\uae09\ub41c\ub2e4&#8217;<\/strong><ul><li>\uc55e\uc5d0\uc11c \ud55c \ub9d0\uc774\ub791 \ube44\uc2b7\ud55c\ub370, \ub78c\ub2e4 \ud45c\ud604\uc2dd \uc790\uccb4\uac00 &#8216;\uc775\uba85 \ud074\ub798\uc2a4\uac00 \uc0dd\ub7b5\ub41c&#8217; \ucf54\ub4dc\uc758 \ud615\uc2dd\uc774\uae30 \ub54c\ubb38\uc774\ub2e4.<\/li><li>&#8216;\ub108\uc904\ub108\uc904 \uc4f0\uae30 \uadc0\ucc2e\uc544\uc11c&#8217; \ub78c\ub2e4 \ud45c\ud604\uc2dd\uc774 &#8216;\uc5b8\uc5b4 \ucc28\uc6d0\uc5d0\uc11c&#8217; \uc9c0\uc6d0\ub41c \uac83\uc774\uc9c0, \uac1c\ub150\uc801\uc73c\ub85c\ub294 \ud30c\ub77c\ubbf8\ud130 \ud328\uc2f1\uc774 \uc775\uba85 \ud074\ub798\uc2a4\ub85c \ud328\uc2f1\ub418\ub294 \uac83\uc774\ub791 \ub3d9\uc77c\ud558\uae30 \ub54c\ubb38.<\/li><\/ul><\/li><li>java.util.function \ud328\ud0a4\uc9c0\ub294 \uc6b0\ub9ac\uac00 \uc790\uc8fc \uc0ac\uc6a9\ud558\ub294 &#8216;\ucc38\/\uac70\uc9d3&#8217; , &#8216;\ud589\uc704&#8217; , &#8216;\uac1d\uccb4\uc18c\uba78&#8217;, &#8216;\uac1d\uccb4\uc0dd\uc131&#8217; \uacfc \uac19\uc740 \uc790\uc8fc \uc0ac\uc6a9\ud558\ub294 \ub2e4\uc591\ud55c \ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc81c\uacf5\ud55c\ub2e4<ul><li>\ucc45\uc5d0\uc11c\ub294 \ub2e4\ub8e8\uc5c8\uc9c0\ub9cc \ub09c \ub2e4\ub8e8\uc9c0 \uc54a\uc740 primitive data type\uc744 \ub2e4\ub8e8\ub294 \ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4\ub3c4 \uc81c\uacf5\ud574 \uc90c \u3147\u3147<\/li><\/ul><\/li><li>\uc2e4\ud589 \uc5b4\ub77c\uc6b4\ub4dc \ud328\ud134\uc744 \ub78c\ub2e4\uc640 \ud568\uaf10 \uc774\uc6a9\ud558\uba74, &#8216;DB\ucee4\ub125\uc158\uc744 \uc5bb\uace0(\uc790\uc6d0\uc744 \uc5bb\uc74c)&#8217;, &#8216;DB\ucee4\ub125\uc158\uc744 \ud480\uc5b4\uc8fc\ub294(\uc790\uc6d0\uc744 \ubc49\ubc49)&#8217; \ub294 \ub3d9\uc791\uc744 \ube44 \ubc18\ubcf5\uc801\uc73c\ub85c \uad6c\ud604\ud558\uba70, \uc720\uc5f0\uc131\uacfc \uc7ac\uc0ac\uc6a9\uc131\uae4c\uc9c0 \uc5bb\uc744 \uc218 \uc788\ub2e4.<\/li><li>\uba54\uc18c\ub4dc \ucc38\uc870\ub294 \ubb38\ubc95\uc744 \uc678\uc6b0\uc790.<ul><li>\ubabb\uc678\uc6b0\uaca0\uc73c\uba74 IntelliJ\ub97c \uc0ac\uc790<ul><li> \ub178\ub780\uc904 \ucc0d \uadf8\uc5b4\uc8fc\uba70 &#8216;\uc774\uac70 \ubc14\uafb8\uba74 \ub354\uc88b\uc74c&#8217; \uc774\ub77c\uace0 \ucd94\ucc9c\ud574\uc900\ub2e4.(\uc774\ud074\ub9bd\uc2a4\ub3c4 \ud574\uc8fc\ub098?)<\/li><\/ul><\/li><\/ul><\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\uac1c\uc694 \uc774\uc804 \uc7a5\uc5d0\uc11c\ub294 &#8216;\ub3d9\uc791 \ud30c\ub77c\ubbf8\ud130\ud654&#8217; \uc5d0 \ub300\ud574 \ubc30\uc6e0\ub2e4. \uac12(value)\uac00 \ub4e4\uc5b4\uac00\uc57c \ud558\ub294 \uc704\uce58\uc778 \uba54\uc18c\ub4dc \uc544\uaddc\uba3c\ud2b8\uc5d0 \u2018\ud589\uc704\u2019 \uc790\uccb4\uac00 \ub4e4\uc5b4\uac00\ub294 \uac83\uc774 \ubc14\ub85c \u2018\ub3d9\uc791 \ud30c\ub77c\ubbf8\ud130\ud654\u2019 \uc774\ub2e4. &#8216;\ub78c\ub2e4 \ud45c\ud604\uc2dd&#8217;\uc5d0 \ub300\ud574 \uc774\uc804 2\uc7a5\uc5d0\uc11c\ub3c4 \uc7a0\uae50 \uc5b8\uae09\uc744 \ud588\ub294\ub370, \uc774\ubc88 3\uc7a5\uc740 \uadf8 \ub78c\ub2e4 \ud45c\ud604\uc2dd\uc5d0 \ub300\ud574 \uc608\uc81c\ub97c \ud1b5\ud574 \uc870\uae08 \uae4a\uac8c \uc0b4\ud3b4\ubcf4\ub294 \uc2dc\uac04\uc744 \uac16\ub3c4\ub85d \ud55c\ub2e4. 1. \ub78c\ub2e4 \ud45c\ud604\uc2dd \ub3d9\uc791 \ud30c\ub77c\ubbf8\ud130\ub97c \uc774\uc6a9\ud574\uc11c \ub3d9\uc791(\ud639\uc740 \uba54\uc18c\ub4dc) \uc790\uccb4\uac00 \ud30c\ub77c\ubbf8\ud130\ud654 \ub418\uba70 &#8230; <a title=\"\ubaa8\ub358 \uc790\ubc14 \uc778 \uc561\uc158 3\uc7a5\" class=\"read-more\" href=\"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/2020\/11\/09\/%eb%aa%a8%eb%8d%98-%ec%9e%90%eb%b0%94-%ec%9d%b8-%ec%95%a1%ec%85%98-3%ec%9e%a5-2\/\" aria-label=\"Read more about \ubaa8\ub358 \uc790\ubc14 \uc778 \uc561\uc158 3\uc7a5\">Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,3],"tags":[],"class_list":["post-265","post","type-post","status-publish","format-standard","hentry","category-uncategorized","category-3"],"_links":{"self":[{"href":"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/265","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/wp-json\/wp\/v2\/comments?post=265"}],"version-history":[{"count":1,"href":"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/265\/revisions"}],"predecessor-version":[{"id":269,"href":"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/265\/revisions\/269"}],"wp:attachment":[{"href":"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/wp-json\/wp\/v2\/media?parent=265"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/wp-json\/wp\/v2\/categories?post=265"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scrutineer.co.kr\/wordpress\/index.php\/wp-json\/wp\/v2\/tags?post=265"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}