{"id":2828,"date":"2019-06-01T17:44:37","date_gmt":"2019-06-01T08:44:37","guid":{"rendered":"https:\/\/now0930.pe.kr\/wordpress\/?p=2828"},"modified":"2019-06-01T17:44:40","modified_gmt":"2019-06-01T08:44:40","slug":"%ed%94%84%eb%a1%9c%ea%b7%b8%eb%9e%98%eb%a8%b8%ec%8a%a4-%ec%99%84%eb%a3%8c%ed%95%98%ec%a7%80-%eb%aa%bb%ed%95%9c-%ec%84%a0%ec%88%98","status":"publish","type":"post","link":"https:\/\/now0930.pe.kr\/wordpress\/%ed%94%84%eb%a1%9c%ea%b7%b8%eb%9e%98%eb%a8%b8%ec%8a%a4-%ec%99%84%eb%a3%8c%ed%95%98%ec%a7%80-%eb%aa%bb%ed%95%9c-%ec%84%a0%ec%88%98\/","title":{"rendered":"\ud504\ub85c\uadf8\ub798\uba38\uc2a4 \uc644\ub8cc\ud558\uc9c0 \ubabb\ud55c \uc120\uc218"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>import java.util.HashMap;\nimport java.util.Iterator;\nimport java.util.Set;\n\npublic class Main {\npublic static void main(String[] args){\n\tString[] participant = new String[5];\n\tString[] completion = new String[4];\n\n\tparticipant[0] = \"marina\";\n\tparticipant[1] = \"josipa\";\n\tparticipant[2] = \"nikola\";\n\tparticipant[3] = \"vinko\";\n\tparticipant[4] = \"filipa\";\n\n\tcompletion[0] = \"josipa\";\n\tcompletion[1] = \"filipa\";\n\tcompletion[2] = \"marina\";\n\tcompletion[3] = \"nikola\";\n\n    HashMap &lt;Integer, String> temp = new HashMap&lt;>();\n    for (int i=0; i&lt; participant.length; i++)\n    {\n       temp.put(i,participant[i]);\n    }\n    Set set = temp.keySet();\n\n    Iterator itr = set.iterator();\n    int[] removeTarget = new int[100];\n    \n    for (int i=0;i&lt;100;i++)\n    \tremoveTarget[i]=-1;\n\n    while(itr.hasNext()) {\n\tint key = (int)itr.next();\n\n    for (int i=0; i&lt; completion.length; i++) {\n\/\/\t\tSystem.out.println(temp.get(key));\n\/\/\t\tSyst\/em.out.println(temp.values());\n\n\t\tif(temp.get(key) == completion[i])\n\t\t\t\/\/temp.remove(key);\n\t\t\t\/\/\uc9c0\uc6b0\ub294 \ub300\uc2e0 \ucd94\uac00.\n\t\t\t\/\/ \ud45c\uc2dc\n\t\t\tremoveTarget[i]=key;\n\/\/\t\t\t System.out.println(temp.values());\n    }\n    }\n    for(int i=0;i&lt;100;i++) {\n    \t\/\/System.out.println(removeTarget[i]);\n    \tif(removeTarget[i] >= 0)\n\t\t\ttemp.remove(removeTarget[i]);\n    }\n    HashMap.Entry&lt;Integer, String> entry = temp.entrySet().iterator().next();\n    System.out.println(temp.get(entry.getKey()));\n}\n}<\/code><\/pre>\n\n\n\n<p>hashmap\uc744 \ucd94\uac00\ud55c \ub2e4\uc74c \ube44\uad50\ud558\uc5ec \ubc14\ub85c \uc9c0\uc6b0\uace0 \uc2f6\uc5c8\ub2e4. \uadf8\ub7ec\ub098 ConcurrentModificationException\uc774 \uc911\ub2e8\uc2dc\ucf30\ub2e4. \uc5ec\ub7ec \uc0bd\uc9c8 \ud6c4 \ud45c\uae30\ub97c \ud558\uc5ec \ub098\uc911\uc5d0 \ud55c\ubc88\uc5d0 \uc9c0\uc6e0\ub2e4. \uc774\uc0c1\ud55c \uc810\uc740 eclipse\ub294 \uc798 \ub418\ub294\ub370, \ud504\ub85c\uadf8\ub798\uba38\uc2a4 \ucef4\ud30c\uc77c\uc740 \uc798 \uc548\ub41c\ub2e4. \ub098 \ub9d0\uace0\ub3c4 \uc5ec\ub7ec \uc0ac\ub78c \uadf8\ub7f0 \ub4ef \ud558\ub2e4.<\/p>\n\n\n\n<p>level 1\uc778\ub370 \uc2dc\uac04\uc744 \ub108\ubb34 \ub9ce\uc774 \uac78\ub838\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>hashmap\uc744 \ucd94\uac00\ud55c \ub2e4\uc74c \ube44\uad50\ud558\uc5ec \ubc14\ub85c \uc9c0\uc6b0\uace0 \uc2f6\uc5c8\ub2e4. \uadf8\ub7ec\ub098 ConcurrentModificationException\uc774 \uc911\ub2e8\uc2dc\ucf30\ub2e4. \uc5ec\ub7ec \uc0bd\uc9c8 \ud6c4 \ud45c\uae30\ub97c \ud558\uc5ec \ub098\uc911\uc5d0 \ud55c\ubc88\uc5d0 \uc9c0\uc6e0\ub2e4. \uc774\uc0c1\ud55c \uc810\uc740 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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