{"id":4681,"date":"2019-10-30T19:27:32","date_gmt":"2019-10-30T10:27:32","guid":{"rendered":"https:\/\/chat-messenger.com\/?p=4681"},"modified":"2019-10-30T19:38:47","modified_gmt":"2019-10-30T10:38:47","slug":"array_copy_clone","status":"publish","type":"post","link":"https:\/\/chat-messenger.com\/ko\/blog\/java\/array_copy_clone","title":{"rendered":"\uc790\ubc14\uc758 \uae30\ubcf8\uc801\uc778 \ubc30\uc5f4 \uc870\uc791 \uc815\ub9ac"},"content":{"rendered":"<h2>\uc120\uc5b8\uacfc \ub3d9\uc2dc\uc5d0 \ubc30\uc5f4 \ucd08\uae30\ud654<\/h2>\n<p>\ub2e4\uc74c\uacfc \uac19\uc774 \uc791\uc131\ud558\uba74 \uc120\uc5b8\uacfc \ub3d9\uc2dc\uc5d0 \ubc30\uc5f4\uc744 \ucd08\uae30\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h4>\uc0d8\ud50c \ucf54\ub4dc<\/h4>\n<pre class=\"sample_src\">\r\nstatic void arraySample() { String[] s = {&quot;\uc0ac\uacfc&quot;, &quot;\uade4&quot;, &quot;\ubc14\ub098\ub098&quot;}; } System.out.println(s[1]);\r\n<\/pre>\n<p>\ucd9c\ub825 \uacb0\uacfc:<\/p>\n<pre class=\"console\">\r\n\uade4\r\n<\/pre>\n<p><script type=\"text\/javascript\" src=\"https:\/\/chat-messenger.com\/js\/common.js?dd12sssas2223\" charset=\"UTF-8\"><\/script><br \/>\n<script type=\"text\/javascript\"> writePR(); <\/script><\/p>\n<h2>\ubc30\uc5f4\uc758 \uc694\uc18c \uc218 \uc5bb\uae30 \u2013 <strong>\uae38\uc774<\/strong><\/h2>\n<p>\ubc30\uc5f4\uc5d0 \uba87 \uc694\uc18c\uac00 \ub4e4\uc5b4 \uc788\ub294\uc9c0\ub97c \ucde8\ub4dd\ud558\uace0 \uc2f6\uc740 \uacbd\uc6b0\ub294 length \ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. length \ub294 \uba54\uc18c\ub4dc\uac00 \uc544\ub2c8\uace0, \ud544\ub4dc\uc778 \uc810\uc5d0 \uc57d\uac04\uc758 \uc8fc\uc758\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n<h4>\uc0d8\ud50c \ucf54\ub4dc<\/h4>\n<pre class=\"sample_src\">\r\nstatic void lengthSample() { String[] s1 = {&quot;\uc0ac\uacfc&quot;, &quot;\uade4&quot;, &quot;\ud3ec\ub3c4&quot;}; String[] s2 = {}; System.out.println(s1.length); System.out.println( s2.length); }\r\n<\/pre>\n<p>\ucd9c\ub825 \uacb0\uacfc:<\/p>\n<pre class=\"console\">\r\n3\r\n0\r\n<\/pre>\n<h2>\ubc30\uc5f4 \ubcf5\uc0ac \u2013 <strong>clone<\/strong><\/h2>\n<p>\uc5b4\ub290 \ubc30\uc5f4\uacfc \uac19\uc740 \ubc30\uc5f4\uc744 \ub9cc\ub4e4\uace0 \uc2f6\uc740 \uacbd\uc6b0\ub294, clone \uac00 \ud3b8\ub9ac\ud569\ub2c8\ub2e4.<\/p>\n<h4>\uc0d8\ud50c \ucf54\ub4dc<\/h4>\n<pre class=\"sample_src\">\r\nstatic void cloneSample() { String[] s1 = {&quot;\uc0ac\uacfc&quot;, &quot;\uade4&quot;, &quot;\ud3ec\ub3c4&quot;}; String[] s2 = s1.clone(); System.out.println(s1[0] + &#039; &#039; + s1[1] + &#039; &#039; + s1[2]); System.out.println(s2[0] + &#039; &#039; + s2[1] + &#039; &#039; + s2[2]); }\r\n<\/pre>\n<p>\ucd9c\ub825 \uacb0\uacfc:<\/p>\n<pre class=\"console\">\r\n\uc0ac\uacfc \uade4 \ud3ec\ub3c4 \uc0ac\uacfc \uade4 \ud3ec\ub3c4\r\n<\/pre>\n<h2>\ubc30\uc5f4 \ubcf5\uc0ac \u2013 <strong>System.arraycopy<\/strong><\/h2>\n<p>Java \uc758 \ubc30\uc5f4\uc740, \ucd08\uae30\ud654\uc2dc\uc758 \uc0ac\uc774\uc988\ub85c \uace0\uc815\ub418\uc5b4 \ubc84\ub9bd\ub2c8\ub2e4. \ud55c \ubc88 \ub9cc\ub4e0 \ubc30\uc5f4\uc758 \ud06c\uae30\ub97c \ub298\ub9ac\ub824\uba74 System.arraycopy\ub97c \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<p>arraycopy \ub294 clone \uacfc \uac19\uc774 \ubc30\uc5f4\uc744 \ubcf5\uc0ac\ud560 \ub54c \uc0ac\uc6a9\ud558\uc9c0\ub9cc clone \ubcf4\ub2e4 \uc138\ubc00\ud55c \uc124\uc815\uc744 \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<pre class=\"point\">\r\narraycopy (Object src, int srcPos, Object dest, int destPos, int length) src ... \uce74\ud53c \uc6d0\uc758 \ubc30\uc5f4 srcPos ... \uce74\ud53c \uc6d0 \ubc30\uc5f4 (src)\uc758 \uce74\ud53c\ud558\ub294 \uac1c\uc2dc \uc704\uce58 dest ... \uce74\ud53c \ucc98\uc758 \ubc30\uc5f4 destPos. .. \ubcf5\uc0ac \ub300\uc0c1 \ubc30\uc5f4 (dest) \ubcf5\uc0ac\ud560 \uc2dc\uc791 \uc704\uce58 length... \ubcf5\uc0ac\ud560 \uc694\uc18c \uc218\r\n<\/pre>\n<h4>\uc0d8\ud50c \ucf54\ub4dc<\/h4>\n<pre class=\"sample_src\">\r\nstatic void arraycopySample() { String[] s1 = {&quot;\uc0ac\uacfc&quot;, &quot;\uade4&quot;, &quot;\ud3ec\ub3c4&quot;}; String[] s2 = new String[5]; System.arraycopy(s1, 0, s2, 0, 3) ; s2[3] = &quot;\ubc14\ub098&quot;; s2[4] = &quot;\uccb4\ub9ac&quot;; System.out.println(s1[0] + &quot; &quot; + s1[1] + &quot; &quot; + s1[2]); System.out .println(s2[0] + &quot; &quot; + s2[1] + &quot; &quot; + s2[2] + &quot; &quot; + s2[3] + &quot; &quot; + s2[4]); }\r\n<\/pre>\n<p>\ucd9c\ub825 \uacb0\uacfc:<\/p>\n<pre class=\"console\">\r\n\uc0ac\uacfc \uade4 \ud3ec\ub3c4 \uc0ac\uacfc \uade4 \ud3ec\ub3c4 \ubc14\ub098\ub098 \uccb4\ub9ac\r\n<\/pre>\n<p>\ubc30\uc5f4\uc758 \uacb0\ud569\uc744 \ud558\ub294 \uacbd\uc6b0\ub3c4 arraycopy \ub97c \uc0ac\uc6a9\ud558\uba74 \ud3b8\ub9ac\ud569\ub2c8\ub2e4.<\/p>\n<h4>\uc0d8\ud50c \ucf54\ub4dc<\/h4>\n<pre class=\"sample_src\">\r\nstatic void joinArraySample() { String[] s1 = {&quot;\uc0ac\uacfc&quot;, &quot;\uade4&quot;, &quot;\ud3ec\ub3c4&quot;}; String[] s2 = {&quot;\ubc14\ub098\ub098&quot;, &quot;\uccb4\ub9ac&quot;, &quot;\ubaa8\ubaa8&quot;}; int rLen = s1. length + s2.length; String[] rStr = new String[rLen]; \/\/s1 \ubc0f s2 \uae38\uc774\uc758 \ubc30\uc5f4\uc744 \ubaa8\ub450 \ucd08\uae30\ud654 System.arraycopy(s1, 0, rStr, 0, s1.length); System .arraycopy(s2, 0, rStr, s1.length, s2.length); \/\/ \ub300\uc0c1 \ubc30\uc5f4\uc758 \uc2dc\uc791 \uc704\uce58 \uc124\uc815\uc774 \ud3ec\uc778\ud2b8 System.out.println(rStr[0] + &quot; &quot; + rStr[1] + &quot; + rStr[2] + &quot; &quot; + rStr[3] + &quot; &quot; + rStr[4] + &quot; &quot; + rStr[5]); }\r\n<\/pre>\n<p>\ucd9c\ub825 \uacb0\uacfc:<\/p>\n<pre class=\"console\">\r\n\uc0ac\uacfc \uade4 \ud3ec\ub3c4 \ubc14\ub098\ub098 \uccb4\ub9ac \ubaa8\ubaa8\r\n<\/pre>\n<h2>\ub2e4\ucc28\uc6d0 \ubc30\uc5f4 \ub9cc\ub4e4\uae30<\/h2>\n<p>\ubc30\uc5f4\uc5d0 \ubc30\uc5f4\uc744 \ub9cc\ub4e4\uc5b4 \ub2e4\ucc28\uc6d0 \ubc30\uc5f4\uc744 \ub9cc\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud14c\uc774\ube14 \ub370\uc774\ud130\ub97c \uc800\uc7a5\ud560 \ub54c \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n<h4>\uc0d8\ud50c \ucf54\ub4dc<\/h4>\n<pre class=\"sample_src\">\r\nstatic void twoDArraySample() { int[] a1 = {38, 84, 98}; int[] a2 = {32, 11, 56}; int[] a3 = {82, 77, 8}; int[][] twoDArray = {a1, a2, a3}; for (int[] a : twoDArray) { for (int score : a) { System.out.print(score + &quot;&quot;); } System.out.println(&quot;&quot;) ; } }\r\n<\/pre>\n<p>\ucd9c\ub825 \uacb0\uacfc:<\/p>\n<pre class=\"console\">\r\n38 84 98 \r\n32 11 56 \r\n82 77 8 \r\n<\/pre>","protected":false},"excerpt":{"rendered":"<p>\uc120\uc5b8\uacfc \ub3d9\uc2dc\uc5d0 \ubc30\uc5f4 \ucd08\uae30\ud654 \ub2e4\uc74c\uacfc \uac19\uc774 \uc791\uc131\ud558\uba74 \uc120\uc5b8\uacfc \ub3d9\uc2dc\uc5d0 \ubc30\uc5f4\uc744 \ucd08\uae30\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0d8\ud50c \ucf54\ub4dc sta [\u2026]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":""},"categories":[19],"tags":[],"_links":{"self":[{"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/posts\/4681"}],"collection":[{"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/comments?post=4681"}],"version-history":[{"count":6,"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/posts\/4681\/revisions"}],"predecessor-version":[{"id":4688,"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/posts\/4681\/revisions\/4688"}],"wp:attachment":[{"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/media?parent=4681"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/categories?post=4681"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/tags?post=4681"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}