{"id":576,"date":"2020-06-29T09:00:37","date_gmt":"2020-06-29T00:00:37","guid":{"rendered":"http:\/\/mobilelab.khu.ac.kr\/?p=576"},"modified":"2020-04-05T19:01:46","modified_gmt":"2020-04-05T10:01:46","slug":"be-dart-programmer-24","status":"publish","type":"post","link":"http:\/\/mobilelab.khu.ac.kr\/wordpress\/2020\/06\/29\/be-dart-programmer-24\/","title":{"rendered":"Dart Programmer \ub418\uae30 [24]"},"content":{"rendered":"\n<h4>&lt; Dart \uae30\ucd08\ubb38\ubc95 &#8211; Generics &gt;<\/h4>\n\n\n\n<p>\uc55e\uc11c List\ub97c \ub9cc\ub4e4\ub54c, var myList = List&lt;int&gt;(); \ud639\uc740 List&lt;int&gt; myList = [];\uc640 \uac19\uc774 \ub9cc\ub4e0 \uc801\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ub458\ub2e4, blank list\ub97c \ub9cc\ub4dc\ub294 \uac83\uc73c\ub85c, Dart \uc5b8\uc5b4\ub97c \ud1b5\ud574\uc11c, list \ub0b4\ubd80\uc5d0 \uc800\uc7a5\ud560 \uc815\ubcf4\uc758 \ud0c0\uc785\uc744 \uc815\uc218\ud615\uc774\ub77c\uace0 \uc54c\ub824\uc900 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c List\uc5d0 \uc815\uc218\ub97c \uc800\uc7a5\ud560 \uc218\ub3c4 \uc788\uace0, List&lt;double&gt; \ud639\uc740 List&lt;String&gt;\uacfc \uac19\uc740 \ud615\ud0dc\ub85c \uc2e4\uc218\ub098 \ubb38\uc790\uc5f4\uc744 \uc800\uc7a5\ud558\ub294 \uac83\ub3c4 \uac00\ub2a5\ud569\ub2c8\ub2e4. \uc774\ud6c4\ub294 \uc5b4\ub560\ub098\uc694? List\uc5d0\uc11c \uc81c\uacf5\ud558\ub294 \ub2e4\uc591\ud55c property\uc640 member method\ub4e4\uc5d0 \ub300\ud574\uc11c, \uc800\uc7a5\ud558\ub294 \ub370\uc774\ud0c0 \ud0c0\uc785\uc5d0 \ub300\ud55c \ubcc4\ub3c4 \ud45c\uc2dc\ub97c \ud558\uc9c0 \uc54a\uc544\ub3c4 \ub3d9\uc77c\ud55c \ubb38\ubc95\uc73c\ub85c \ud504\ub85c\uadf8\ub798\ubc0d \ud560\uc218 \uc788\uc5c8\uc2b5\ub2c8\ub2e4. \uc774\ub7f0 \uae30\uc220\uc740 Dart \uc5b8\uc5b4\uc758 generics \ubb38\ubc95\uc744 \ud1b5\ud574\uc11c \uac1c\ubc1c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h4>Point Class using Generics with Explicit Types<\/h4>\n\n\n\n<p>\ud074\ub798\uc2a4 \ucc55\ud130\uc5d0\uc11c \uc6b0\ub9ac\ub294 Point \ud074\ub798\uc2a4\ub97c \ub9cc\ub4e4\uc5b4 \ubcf4\uc558\uc2b5\ub2c8\ub2e4. \uc989, \ub450 \uac1c\uc758 \uc88c\ud45c\ub97c \uc800\uc7a5\ud558\ub294 \ud074\ub798\uc2a4\ub97c \uc880 \ub354 \uad6c\uccb4\uc801\uc73c\ub85c \ud574\uc11c, \uc815\uc218\ud615 \ud0c0\uc785 \ud639\uc740 \uc2e4\uc218\ud615 \ud0c0\uc785 \ub4f1\uc758 \uad6c\uccb4\uc801\uc778 \ud615\ud0dc\uc758 \ub370\uc774\ud0c0 \ud0c0\uc785\uc744 \uac00\uc9c0\ub294 \ud074\ub798\uc2a4\ub97c \ub9cc\ub4ed\ub2c8\ub2e4. \ucf54\ub4dc\ub97c \uba3c\uc800 \ubcf4\uace0 \uc774\uc5d0 \ub300\ud55c \uc124\uba85\uc744 \ud558\ub3c4\ub85d \ud558\uaca0\uc2b5\ub2c8\ub2e4. Generics \uae30\uc220\uc744 \ud1b5\ud574\uc11c \ub9cc\ub4e0 Point \ud074\ub798\uc2a4\uac00 \uc544\ub798\uc758 darttutorial-24-01.dart <br>\ud504\ub85c\uadf8\ub7a8 \uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/mobilelab.khu.ac.kr\/wordpress\/wp-content\/uploads\/2020\/02\/1.png\" alt=\"\" class=\"wp-image-597\" width=\"472\" height=\"371\" srcset=\"http:\/\/mobilelab.khu.ac.kr\/wordpress\/wp-content\/uploads\/2020\/02\/1.png 438w, http:\/\/mobilelab.khu.ac.kr\/wordpress\/wp-content\/uploads\/2020\/02\/1-300x236.png 300w\" sizes=\"(max-width: 472px) 100vw, 472px\" \/><figcaption>darttutorial-24-01.dart <\/figcaption><\/figure><\/div>\n\n\n\n<p>\uc2e4\uc81c Point \ud074\ub798\uc2a4\ub97c \uc0ac\uc6a9\ud558\ub294 \ubd80\ubd84\uc744 \uba3c\uc800 \ubcf4\uba74, 11~13\ubc88 \uc904\uc5d0\uc11c, List \ub4f1\uacfc \uac19\uc774 int, double, String\uc758 \ud0c0\uc785\uba85\uc744 \ucd94\uac00\ub85c Point \ud074\ub798\uc2a4 \uc774\ub984 \ub4a4\uc5d0 &lt; &#8230; &gt; \uad04\ud638\ub97c \uc0ac\uc6a9\ud558\uc5ec \ucd94\uac00\ud55c \uac83\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. Point \ud074\ub798\uc2a4\ub97c \ub9cc\ub4dc\ub294 3~8\ubc88 \uc904\uc744 \ubcf4\uba74, \uc55e\uc11c\uc758 Point \ud074\ub798\uc2a4\uc640 \ucc28\uc774\uac00 \uc788\ub294 \uac83\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uba3c\uc800 \ud074\ub798\uc2a4\uc758 \uc774\ub984\uc778 Point \ub4a4\uc5d0 \ucd94\uac00\ub85c &lt;T&gt;\ub77c\uace0 \uc4f0\uc5ec\uc838 \uc788\ub294 \uac83\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub807\uac8c \ud50c\ub798\uc2a4 \uc774\ub984\ub4a4\uc5d0 &lt; &#8230; &gt;\ub97c \uc0ac\uc6a9\ud558\uc5ec, \ub0b4\ubd80\uc5d0 \uc800\uc7a5\ud560 \ud0c0\uc785\uc5d0 \uc601\ud5a5\uc744 \ubc1b\ub294 \ubd80\ubd84\uc744 \uc81c\uc5b4\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc77c\ub2e8 T\ub77c\ub294 \uae00\uc790\ub294 \uac1c\ubc1c\uc790\uac00 \uc784\uc758\ub85c \uc900 \uac83\uc774\uba70, \uac1c\ubc1c\uc790\uac00 \ud76c\ub9dd\ud558\ub294 \ubd80\ubd84\uc73c\ub85c \uc815\uc758\ud558\uba74 \ub429\ub2c8\ub2e4. T\uc758 \uc5ed\ud560\uc740 Point&lt;int&gt; \ucc98\ub7fc \ud558\uba74, T\uac00 int\ub85c \ubc14\ub00c\ub294 \ud6a8\uacfc\ub97c \uc900\ub2e4\uace0 \uc120\uc5b8\ud55c \uac81\ub2c8\ub2e4. \ub530\ub77c\uc11c, \uc774\ud6c4 Point \ud074\ub798\uc2a4\uc758 \ub0b4\ubd80\uc5d0\uc11c T\ub77c\uace0 \uc120\uc5b8\ud55c \ubd80\ubd84\uc740, \uc774\uacbd\uc6b0\uc5d0 int\ub77c\uace0 \ud574\uc11d\ud574\ub3c4 \ub41c\ub2e4\ub294 \uc810\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c, \ud074\ub798\uc2a4 \ub0b4\ubd80\uc758 x, y\uc640 constructor\uc758 \uc785\ub825 \ud30c\ub77c\uba54\ud0c0\ub4e4\uc740 int \ud0c0\uc785\uc774 \ub41c\ub2e4\ub294 \uac83\uc785\ub2c8\ub2e4. \ub9cc\uc57d, Point&lt;double&gt;\ub85c \ud558\uba74, \uc774\ub4e4\uc740 \ubaa8\ub450 double\uc774 \ub418\ub294 \uac83\uc774\uc9c0\uc694. <\/p>\n\n\n\n<p>\uc774\ub7ec\ud55c \uc774\uc720\ub85c, 11~13\ubc88 \uc904\uc744 \uc815\uc758\ud558\uba74, iPoint \ub0b4\ubd80\ub294 \uc815\uc218\ub4e4, dPoint \ub0b4\ubd80\ub294 double \ubcc0\uc218\ub4e4, \uadf8\ub9ac\uace0 sPoint \ub0b4\ubd80\ub294 \ubb38\uc790\uc5f4 \uac12\uc744 \uac16\ub3c4\ub85d \ud55c\ub2e4\ub294 \uc758\ubbf8\uc785\ub2c8\ub2e4. \uc758\uc678\ub85c \uc5b4\ub835\uc9c0 \uc54a\uc740 \uac83\uc744 \uc54c\uc218 \uc788\uc2b5\ub2c8\ub2e4. 15~17\ubc88 \uc904\ucc98\ub7fc, \uc774\ud6c4\ub85c\ub294 \ud0c0\uc785\uc5d0 \uc0c1\uad00\uc5c6\uc774 \ub3d9\uc77c\ud55c \ubc29\ubc95\uc73c\ub85c \uc0ac\uc6a9\ud558\uba74 \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h4>Point Class using Generics with Implicit Types<\/h4>\n\n\n\n<p>darttutorial-24-01.dart \ud504\ub85c\uadf8\ub7a8\uc740 \uac1c\ubc1c\uc790\uac00 \uc77c\uc77c\uc774 int, double, String\uacfc \uac19\uc740 \ud0c0\uc785\uc744 \uc9c1\uc811 \uad6c\uccb4\uc801\uc73c\ub85c \uc815\uc758\ud55c \uacbd\uc6b0\uc785\ub2c8\ub2e4. \ud558\uc9c0\ub9cc, \uc6b0\ub9ac\ub294 Dart\uc758 type inference \uae30\ub2a5\uc744 \ud1b5\ud574\uc11c, \uad73\uc774 \uac1c\ubc1c\uc790\uac00 \uad6c\uccb4\uc801\uc778 \ud0c0\uc785\uc744 \uc801\uc5b4\uc8fc\uc9c0 \uc54a\uc544\ub3c4, Dart \uc5b8\uc5b4\uac00 \uc54c\uc544\uc11c \ud0c0\uc785\uc744 \uc720\ucd94\ud558\ub294 \uac83\uc744 \ubc30\uc6e0\uc2b5\ub2c8\ub2e4. \uadf8\ub9ac\uace0 Constructor\ub97c \ud1b5\ud55c \ub0b4\ubd80 \ubcc0\uc218 \ucd08\uae30\ud654\ub3c4 \ub2e8\uc21c\ud55c \ubc29\ubc95\uc73c\ub85c \ud560 \uc218 \uc788\ub2e4\ub294 \uc810\uc744 \uc54c\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uc801\uc6a9\ud558\uc5ec \ucf54\ub4dc\ub97c \ub2e8\uc21c\ud654\ud55c \ud504\ub85c\uadf8\ub7a8\uc774 darttutorial-24-02.dart \uc785\ub2c8\ub2e4. <\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/mobilelab.khu.ac.kr\/wordpress\/wp-content\/uploads\/2020\/02\/2.png\" alt=\"\" class=\"wp-image-598\" width=\"479\" height=\"416\" srcset=\"http:\/\/mobilelab.khu.ac.kr\/wordpress\/wp-content\/uploads\/2020\/02\/2.png 398w, http:\/\/mobilelab.khu.ac.kr\/wordpress\/wp-content\/uploads\/2020\/02\/2-300x261.png 300w\" sizes=\"(max-width: 479px) 100vw, 479px\" \/><figcaption>darttutorial-24-02.dart <\/figcaption><\/figure><\/div>\n\n\n\n<p>6\ubc88 \uc904\uc744 \ubcf4\uba74, \ub450\uac1c\uc758 \uc785\ub825 \ud30c\ub77c\uba54\ud0c0\uac00 \ubc14\ub85c \ub0b4\ubd80 \ubcc0\uc218\uc778 x\uc640 y\uc5d0 \uc800\uc7a5\ub41c\ub2e4\uba74, \uac19\uc740 \uc704\uce58\uc5d0 \uac12\uc744 \ubc1b\uc744 \ubcc0\uc218 \uba85\uc744 \uc800\uc7a5\ud55c \uac83\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub9ac\uace0 11~13\ubc88 \uc904\uc5d0\ub294 \uad6c\uccb4\uc801\uc778 \ud0c0\uc785\uc744 \uba85\uc2dc\ud558\uc9c0 \uc54a\uace0 \uc788\ub294 \uac83\uc744 \ubcfc\uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h4>\ub9c8\ubb34\ub9ac<\/h4>\n\n\n\n<p>Generics\ub294 \uac1d\uccb4\uc9c0\ud5a5 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \uc9c0\uc6d0\ud558\ub294 \ub300\ubd80\ubd84\uc758 \uc5b8\uc5b4\uc5d0\uc11c \uc9c0\uc6d0\ud558\ub294 \uae30\ub2a5\uc785\ub2c8\ub2e4. \uac04\ub2e8\ud55c \ubb38\ubc95\uc774\uc9c0\ub9cc, \ub370\uc774\ud0c0 \ud0c0\uc785\ubcc4\ub85c \ub9e4\ubc88 \ucf54\ub4dc\ub97c \uac1c\ubc1c\uc790\uac00 \uc9c1\uc811\ud558\uc9c0 \uc54a\uc544\ub3c4 \ub418\ubbc0\ub85c, \uac1c\ubc1c\uc2dc\uac04\uacfc \ud504\ub85c\uadf8\ub7a8\uc758 \uae38\uc774\uac00 \uc904\uc5b4\ub4e4\uba70, \ub370\uc774\ud0c0 \ud0c0\uc785\uc5d0 \uc0c1\uad00\uc5c6\uc774 \ub3d9\uc77c\ud55c \ubb38\ubc95\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c, \uac1c\ubc1c \uc624\ub958\ub3c4 \uc904\uc5b4\ub4dc\ub294 \ud6a8\uacfc\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignright is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/mobilelab.khu.ac.kr\/wordpress\/wp-content\/uploads\/2020\/01\/b05-1.jpg\" alt=\"\" class=\"wp-image-267\" width=\"135\" height=\"48\"\/><\/figure><\/div>\n\n\n\n<p><strong>Creative Commons License<\/strong> (<strong>CC BY-NC-ND<\/strong>)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&lt; Dart \uae30\ucd08\ubb38\ubc95 &#8211; Generics &gt; \uc55e\uc11c List\ub97c \ub9cc\ub4e4\ub54c, var myList = List&lt;int&gt;(); \ud639\uc740 List&lt;int&gt; myList = [];\uc640 \uac19\uc774 \ub9cc\ub4e0 \uc801\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ub458\ub2e4, blank list\ub97c \ub9cc\ub4dc\ub294 \uac83\uc73c\ub85c, Dart \uc5b8\uc5b4\ub97c \ud1b5\ud574\uc11c, &#8230;<\/p>\n","protected":false},"author":1,"featured_media":973,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[3],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"http:\/\/mobilelab.khu.ac.kr\/wordpress\/wp-json\/wp\/v2\/posts\/576"}],"collection":[{"href":"http:\/\/mobilelab.khu.ac.kr\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/mobilelab.khu.ac.kr\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/mobilelab.khu.ac.kr\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/mobilelab.khu.ac.kr\/wordpress\/wp-json\/wp\/v2\/comments?post=576"}],"version-history":[{"count":5,"href":"http:\/\/mobilelab.khu.ac.kr\/wordpress\/wp-json\/wp\/v2\/posts\/576\/revisions"}],"predecessor-version":[{"id":974,"href":"http:\/\/mobilelab.khu.ac.kr\/wordpress\/wp-json\/wp\/v2\/posts\/576\/revisions\/974"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/mobilelab.khu.ac.kr\/wordpress\/wp-json\/wp\/v2\/media\/973"}],"wp:attachment":[{"href":"http:\/\/mobilelab.khu.ac.kr\/wordpress\/wp-json\/wp\/v2\/media?parent=576"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/mobilelab.khu.ac.kr\/wordpress\/wp-json\/wp\/v2\/categories?post=576"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/mobilelab.khu.ac.kr\/wordpress\/wp-json\/wp\/v2\/tags?post=576"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}