{"id":125,"date":"2025-07-16T15:03:48","date_gmt":"2025-07-16T06:03:48","guid":{"rendered":"http:\/\/34.64.61.65\/?p=125"},"modified":"2025-07-16T15:03:48","modified_gmt":"2025-07-16T06:03:48","slug":"javajavascript%ea%b8%b0%eb%b3%b8_%ea%b0%9c%eb%85%90","status":"publish","type":"post","link":"https:\/\/hed-g.me\/?p=125","title":{"rendered":"[Java][JavaScript]\uae30\ubcf8_\uac1c\ub150"},"content":{"rendered":"<h2>\ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\uc758 \uae30\ucd08: Java\uc640 JavaScript \uac1c\ub150<\/h2>\n<p>\ud504\ub85c\uadf8\ub798\ubc0d\uc758 \uac00\uc7a5 \uae30\ubcf8\uc801\uc778 \ube4c\ub529 \ube14\ub85d\uc778 Java\uc640 JavaScript\uc758 \ud575\uc2ec \uac1c\ub150<br \/>\n\ubcc0\uc218, \ub370\uc774\ud130 \ud0c0\uc785, \uadf8\ub9ac\uace0 \ud568\uc218\uac00 \uc5b4\ub5bb\uac8c \ub3d9\uc791\ud558\ub294\uc9c0 \uc801\uc5b4\ubd04<\/p>\n<hr \/>\n<h3>1. Java: \uc22b\uc790, \ubb38\uc790, \uadf8\ub9ac\uace0 \uc774\uc2a4\ucf00\uc774\ud504 \uc2dc\ud000\uc2a4<\/h3>\n<p>Java\ub294 \uac15\ub825\ud558\uace0 \uc548\uc815\uc801\uc778 \uc5b8\uc5b4\ub85c, \uc22b\uc790\ub97c \ub2e4\ub8e8\ub294 \ubc29\uc2dd\uacfc \ubb38\uc790\ub97c \ud45c\ud604\ud558\ub294 \ubc29\uc2dd\uc774 \uba85\ud655\ud558\uac8c \uc815\uc758<\/p>\n<h4>\uc22b\uc790\uc640 \ubb38\uc790\uc5f4\uc758 \uc774\ud574<\/h4>\n<ul>\n<li><strong>\uc22b\uc790<\/strong>: \ub530\uc634\ud45c\uac00 \uc5c6\ub294 \uc22b\uc790\ub294 \uc22b\uc790\ub85c \uc778\uc2dd<br \/>\n\uc608\ub97c \ub4e4\uc5b4, 123\uc740 \uc22b\uc790\ub85c \ucc98\ub9ac. \ub098\ub217\uc148 \uc5f0\uc0b0\uc740 \/ \uae30\ud638\ub97c \uc0ac\uc6a9<\/li>\n<li><strong>\ubb38\uc790(Character)<\/strong>: \ub2e8\uc77c \ubb38\uc790\ub294 \uc791\uc740\ub530\uc634\ud45c\ub85c \ubb36\uc5b4 \ud45c\ud604<br \/>\n\uc608: &#8216;\ud55c&#8217;<\/li>\n<li><strong>\ubb38\uc790\uc5f4(String)<\/strong>: \uc5ec\ub7ec \uac1c\uc758 \ubb38\uc790\uac00 \uacb0\ud569\ub41c \uac83\uc740 \ud070\ub530\uc634\ud45c\ub85c \ubb36\uc5b4 \ud45c\ud604<br \/>\n\uc608: &quot;\uc790\ubc14 \uacf5\ubd80&quot;<\/li>\n<\/ul>\n<h4>\uc774\uc2a4\ucf00\uc774\ud504 \uc2dc\ud000\uc2a4 \ud65c\uc6a9 \ud83d\udca1<\/h4>\n<p>\uc774\uc2a4\ucf00\uc774\ud504 \ubb38\uc790(\ub610\ub294 \uc81c\uc5b4 \ubb38\uc790)\ub294 \uc778\uc1c4\ud560 \uc218 \uc5c6\uac70\ub098 \ud0a4\ubcf4\ub4dc\ub85c \uc9c1\uc811 \ud45c\ud604\ud558\uae30 \uc5b4\ub824\uc6b4 \ud2b9\ubcc4\ud55c \ubb38\uc790\ub97c \ub098\ud0c0\ub0bc \ub54c \uc0ac\uc6a9\ub428.\uc5ed\uc2ac\ub798\uc2dc()\uc640 \ud558\ub098\uc758 \ubb38\uc790\uac00 \uacb0\ud569\ud558\uc5ec \uc0ac\uc6a9\ub41c\ub2e4<\/p>\n<ul>\n<li>n: \uc904 \ubc14\uafc8 (\uac1c\ud589)<\/li>\n<li>t: \uc218\ud3c9 \ud0ed<\/li>\n<li>: \uc5ed\uc2ac\ub798\uc2dc \uc790\uccb4\ub97c \ucd9c\ub825<\/li>\n<li>&quot;: \ud070\ub530\uc634\ud45c\ub97c \ucd9c\ub825<\/li>\n<li>&#8216;: \uc791\uc740\ub530\uc634\ud45c\ub97c \ucd9c\ub825<\/li>\n<\/ul>\n<p><strong>\uc608\uc2dc \ucf54\ub4dc<\/strong>:<\/p>\n<p>java<br \/>\npublic class DataType_e {<br \/>\npublic static void main(String[] args) {<br \/>\nSystem.out.print(&quot;\uc5ec\uae30\ub294 \uccab\uc9f8\uc904&quot;); \/\/ &#8216;\uc785\ub2c8\ub2e4.&#8217;\uc640 \uc774\uc5b4\uc11c \ucd9c\ub825<br \/>\nSystem.out.println(&quot;\uc785\ub2c8\ub2e4.&quot;); \/\/ \ub2e4\uc74c \uc904\ub85c \ub118\uc5b4\uac10<br \/>\nSystem.out.println(&quot;\uc5ec\uae30\ub294 \ub458\uc9f8\uc904n\uc138\uc9f8\uc904&quot;); \/\/ &#8216;n&#8217;\uc73c\ub85c \uc904 \ubc14\uafc8<br \/>\nSystem.out.println(&quot;\ud0edt\uac04\uaca9&quot;); \/\/ &#8216;t&#8217;\uc73c\ub85c \ud0ed \uac04\uaca9<br \/>\nSystem.out.println(&quot;\uc5ed\uc2ac\ub798\uc2dc\ub97c \ucd9c\ub825: &quot;); \/\/ &#8221;\uc73c\ub85c \uc5ed\uc2ac\ub798\uc2dc \ucd9c\ub825<br \/>\nSystem.out.println(&quot;\ud070\ub530\uc634\ud45c\ub97c \ucd9c\ub825: &quot;Hello&quot;&quot;); \/\/ &#8216;&quot;&#8217;\uc73c\ub85c \ud070\ub530\uc634\ud45c \ucd9c\ub825<br \/>\nSystem.out.println(&quot;\uc791\uc740\ub530\uc634\ud45c\ub97c \ucd9c\ub825: &#8216;A&#8217;&quot;); \/\/ &#8221;&#8217;\uc73c\ub85c \uc791\uc740\ub530\uc634\ud45c \ucd9c\ub825<br \/>\n}<br \/>\n}<\/p>\n<hr \/>\n<h3>2. JavaScript: \ub370\uc774\ud130 \ucd94\ucd9c \ubc0f \ud568\uc218 \ud65c\uc6a9<\/h3>\n<p>JavaScript\ub294 \uc6f9 \uac1c\ubc1c\uc758 \ud575\uc2ec \uc5b8\uc5b4\ub85c, \ub370\uc774\ud130\ub97c \ub2e4\ub8e8\ub294 \uc720\uc5f0\ud55c \ubc29\uc2dd\uacfc \ub2e4\uc591\ud55c \ud568\uc218 \ud65c\uc6a9\ubc95\uc774 \ud2b9\uc9d5<\/p>\n<h4>List\uc640 Object\uc5d0\uc11c \ub370\uc774\ud130 \ub611\ub611\ud558\uac8c \uaebc\ub0b4\uc624\uae30<\/h4>\n<p>JavaScript\uc5d0\uc11c \ubc30\uc5f4(List)\uacfc \uac1d\uccb4(Object)\ub294 \ub370\uc774\ud130\ub97c \uad6c\uc870\ud654\ud558\ub294 \ub370 \ub9e4\uc6b0 \uc911\uc694.<br \/>\n\uc911\ucca9\ub41c \ub370\uc774\ud130\uc5d0\uc11c \uc6d0\ud558\ub294 \uac12\uc744 \ud6a8\uc728\uc801\uc73c\ub85c \ucd94\ucd9c\ud558\ub294 \ubc29\ubc95<\/p>\n<p>\ubcf5\uc7a1\ud55c List\uc640 Object \ub370\uc774\ud130 \uad6c\uc870\ub294 \ub2e4\uc74c \uc608\uc2dc:<\/p>\n<p>json<br \/>\n[<br \/>\n{<br \/>\n&quot;1\ubc88 \uce74\ud14c\uace0\ub9ac &quot;: [<br \/>\n{ &quot;id&quot;: 1, &quot;question&quot;: &quot;\uc9c8\ubb381&quot;, &quot;ansewr&quot;: &quot;\ub2f51&quot; },<br \/>\n{ &quot;id&quot;: 2, &quot;question&quot;: &quot;\uc9c8\ubb382&quot;, &quot;ansewr&quot;: &quot;\ub2f52&quot; }<br \/>\n]<br \/>\n},<br \/>\n{<br \/>\n&quot;2\ubc88\uce74\ud14c\uace0\ub9ac&quot;: [<br \/>\n{ &quot;id&quot;: 3, &quot;question&quot;: &quot;\uc9c8\ubb383&quot;, &quot;ansewr&quot;: &quot;\ub2f53&quot; },<br \/>\n{ &quot;id&quot;: 4, &quot;question&quot;: &quot;\uc9c8\ubb384&quot;, &quot;ansewr&quot;: &quot;\ub2f54&quot; }<br \/>\n]<br \/>\n}<br \/>\n]<\/p>\n<p>\uc774\ub7ec\ud55c \ub370\uc774\ud130\uc5d0\uc11c \uce74\ud14c\uace0\ub9ac\ubcc4 \uc9c8\ubb38\uacfc \ub2f5\uc744 \ucd94\ucd9c\ud558\uae30 \uc704\ud574 Object.keys()\uc640 map() \uac19\uc740 \uba54\uc11c\ub4dc\ub97c \ud65c\uc6a9\ud560 \uc218 \uc788\uc74c.<\/p>\n<h4>JavaScript \ud568\uc218 \ud638\ucd9c\uc758 \ubaa8\ub4e0 \uac83<\/h4>\n<p>JavaScript \ud568\uc218\ub294 \ud2b9\uc815 \uc791\uc5c5\uc744 \uc218\ud589\ud558\ub294 \ucf54\ub4dc \ube14\ub85d. \ud568\uc218\uc758 \uc815\uc758, \ud638\ucd9c, \uadf8\ub9ac\uace0 \uc911\uc694\ud55c \uac1c\ub150\uc778 \uc9c0\uc5ed \ubcc0\uc218<\/p>\n<p><strong>\ud568\uc218 \uad6c\ubb38<\/strong>: \ud568\uc218\ub294 function \ud0a4\uc6cc\ub4dc, \uc774\ub984, \uadf8\ub9ac\uace0 \uad04\ud638 () \uc21c\uc73c\ub85c \uc815\uc758\ub429\ub2c8\ub2e4. \uad04\ud638 \uc548\uc5d0\ub294 \ub9e4\uac1c\ubcc0\uc218\ub97c \ud3ec\ud568\ud560 \uc218 \uc788\uc74c.<\/p>\n<p>javascript<br \/>\nfunction name(parameter1, parameter2&#8230;) {<br \/>\n\/\/ \ucf54\ub4dc<br \/>\n}<\/p>\n<p><strong>\ud568\uc218 \ud638\ucd9c \ubc0f \uac12 \ubc18\ud658<\/strong>: \ud568\uc218\uac00 return \ubb38\uc5d0 \ub3c4\ub2ec\ud558\uba74 \uc2e4\ud589\uc774 \uc911\uc9c0\ub418\uace0, \ubc18\ud658 \uac12\uc774 \ud568\uc218\ub97c \ud638\ucd9c\ud55c \uacf3\uc73c\ub85c \uc804\ub2ec<\/p>\n<p>javascript<br \/>\nlet x = myFunction(4, 3); \/\/ \ud568\uc218 \ud638\ucd9c, \ubc18\ud658 \uac12\uc740 x\uc5d0 \uc800\uc7a5<\/p>\n<p>function myFunction(a, b) {<br \/>\nreturn a * b; \/\/ 12\ub97c \ubc18\ud658<br \/>\n}<br \/>\n\/\/ \uacb0\uacfc\uac12 =&gt; 12<\/p>\n<p><strong>\uc9c0\uc5ed \ubcc0\uc218<\/strong>: \ud568\uc218 \ub0b4\uc5d0\uc11c \uc120\uc5b8\ub41c \ubcc0\uc218\ub294 \ud574\ub2f9 \ud568\uc218 \ub0b4\uc5d0\uc11c\ub9cc \uc811\uadfc \uac00\ub2a5\ud568. \uc774\ub7ec\ud55c \uc9c0\uc5ed \ubcc0\uc218\ub294 \ud568\uc218\uac00 \uc2dc\uc791\ub420 \ub54c \uc0dd\uc131\ub418\uace0 \ud568\uc218\uac00 \uc644\ub8cc\ub418\uba74 \uc0ad\uc81c\ub428\ub428<\/p>\n<p><strong>\uba54\uc11c\ub4dc\ub85c \ud568\uc218 \ud638\ucd9c<\/strong>: \uac1d\uccb4\uc758 \uc18d\uc131\uc73c\ub85c \uc815\uc758\ub41c \ud568\uc218\ub97c \uba54\uc11c\ub4dc\ub77c\uace0 \ud568.<\/p>\n<p>javascript<br \/>\nvar myObject = {<br \/>\nfirstName: &quot;John&quot;,<br \/>\nlastName: &quot;Doe&quot;,<br \/>\nfullName: function() {<br \/>\nreturn this.firstName + &quot; &quot; + this.lastName;<br \/>\n}<br \/>\n};<br \/>\ndocument.getElementById(&quot;demo&quot;).innerHTML = myObject.fullName(); \/\/ &quot;John Doe&quot; \ucd9c\ub825<\/p>\n<p><strong>\ud568\uc218 \uc0dd\uc131\uc790\ub85c \ud568\uc218 \ud638\ucd9c<\/strong>: new \ud0a4\uc6cc\ub4dc\ub97c \uc0ac\uc6a9\ud558\uc5ec \ud568\uc218\ub97c \ud638\ucd9c\ud558\ub294 \uacbd\uc6b0, \uc774\ub294 \uc0dd\uc131\uc790\ub85c \ud638\ucd9c<\/p>\n<p>javascript<br \/>\nfunction myFunction(arg1, arg2) {<br \/>\nthis.firstName = arg1;<br \/>\nthis.lastName = arg2;<br \/>\n}<br \/>\nvar x = new myFunction(&quot;Jane&quot;, &quot;Doe&quot;); \/\/ \uc0c8\ub85c\uc6b4 \uac1d\uccb4 \uc0dd\uc131<br \/>\n\/\/ x.firstName\uc740 &quot;Jane&quot;, x.lastName\uc740 &quot;Doe&quot;<\/p>\n<hr \/>\n","protected":false},"excerpt":{"rendered":"<p>\ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\uc758 \uae30\ucd08: Java\uc640 JavaScript \uac1c\ub150 \ud504\ub85c\uadf8\ub798\ubc0d\uc758 \uac00\uc7a5 \uae30\ubcf8\uc801\uc778 \ube4c\ub529 \ube14\ub85d\uc778 Java\uc640 JavaScript\uc758 \ud575\uc2ec \uac1c\ub150 \ubcc0\uc218, \ub370\uc774\ud130 \ud0c0\uc785, \uadf8\ub9ac\uace0 \ud568\uc218\uac00 \uc5b4\ub5bb\uac8c \ub3d9\uc791\ud558\ub294\uc9c0 \uc801\uc5b4\ubd04 1. Java: \uc22b\uc790, \ubb38\uc790, \uadf8\ub9ac\uace0 \uc774\uc2a4\ucf00\uc774\ud504 \uc2dc\ud000\uc2a4 Java\ub294 \uac15\ub825\ud558\uace0 \uc548\uc815\uc801\uc778 \uc5b8\uc5b4\ub85c, \uc22b\uc790\ub97c \ub2e4\ub8e8\ub294 \ubc29\uc2dd\uacfc \ubb38\uc790\ub97c \ud45c\ud604\ud558\ub294 \ubc29\uc2dd\uc774 \uba85\ud655\ud558\uac8c \uc815\uc758 \uc22b\uc790\uc640 \ubb38\uc790\uc5f4\uc758 \uc774\ud574 \uc22b\uc790: \ub530\uc634\ud45c\uac00 \uc5c6\ub294 \uc22b\uc790\ub294 \uc22b\uc790\ub85c \uc778\uc2dd \uc608\ub97c \ub4e4\uc5b4, 123\uc740 \uc22b\uc790\ub85c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[46,47],"tags":[124,121,125,120],"class_list":["post-125","post","type-post","status-publish","format-standard","hentry","category-java","category-javascript","tag-java","tag-javascript","tag-125","tag-120"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/hed-g.me\/index.php?rest_route=\/wp\/v2\/posts\/125","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hed-g.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hed-g.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hed-g.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hed-g.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=125"}],"version-history":[{"count":1,"href":"https:\/\/hed-g.me\/index.php?rest_route=\/wp\/v2\/posts\/125\/revisions"}],"predecessor-version":[{"id":133,"href":"https:\/\/hed-g.me\/index.php?rest_route=\/wp\/v2\/posts\/125\/revisions\/133"}],"wp:attachment":[{"href":"https:\/\/hed-g.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hed-g.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hed-g.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}