List,Map\u306e\u30b7\u30e3\u30c9\u30a6\u30b3\u30d4\u30fc\u306b\u6ce8\u610f \u306a\u3093\u3068\u306a\u304f\u30b7\u30b9\u30c6\u30e0\u30a8\u30f3\u30b8\u30cb\u30a2<\/a>
\nhttp:\/\/hetaresystemengineer.seesaa.net\/article\/190146032.html<\/p>\n\u3061\u306a\u307f\u306b\u30b7\u30e3\u30c9\u30a6\u30b3\u30d4\u30fc\u3067\u306f\u306a\u304f\u30b7\u30e3\u30ed\u30fc\u30b3\u30d4\u30fc\u3002<\/p>\n
<\/p>\n
\n[java]
\nList listA = new ArrayList(16);
\nList listB = new ArrayList(16);
\nList listC = new ArrayList(16);<\/p>\n
\/** addAll\u3092\u4f7f\u3063\u3066\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc \uff08\u30b3\u30d4\u30fc\u5148\u3092\u5909\u66f4\u3057\u3066\u3082\u30b3\u30d4\u30fc\u5143\u306f\u5024\u304c\u5909\u308f\u3089\u306a\u3044\uff09*\/
\nlistB.addAll(listA);<\/p>\n
\/** \u30b7\u30e3\u30ed\u30fc\u30b3\u30d4\u30fc\u3000\uff08\u30b3\u30d4\u30fc\u5148\u3092\u5909\u66f4\u3059\u308b\u3068\u30b3\u30d4\u30fc\u5143\u3082\u5024\u304c\u5909\u308f\u308b\uff09 *\/
\nlistC = listA;
\n[\/java]<\/p>\n
listC\u306e\u3088\u3046\u306b”=”\u3067\u8a2d\u5b9a\u3059\u308b\u3068\u540c\u3058\u5024\u3092\u53c2\u7167\u3057\u307e\u3059\u3002\u21d2\u30b7\u30e3\u30ed\u30fc\u30b3\u30d4\u30fc
\nlistB\u306e\u3088\u3046\u306baddAll\u3092\u4f7f\u3048\u3070\u72ec\u7acb\u3057\u305f\u5024\u3092\u4f5c\u308a\u307e\u3059\u3002\u3002\u21d2\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc
\n\uff08Map\u306e\u5834\u5408\u306fputAll\uff09<\/p>\n
\n[java]
\n \/\/ map1\u3092\u5f15\u6570\u306bmap2\u3092\u4f5c\u6210
\n Map<String, String> map2 = new HashMap<String, String>(map1);
\n[\/java]<\/p>\n
\u57fa\u672c\u7684\u306b\u30b7\u30e3\u30ed\u30fc\u30b3\u30d4\u30fc\u3059\u308b\u3050\u3089\u3044\u306a\u3089\u3001\u81ea\u5206\u306f\u4f7f\u3044\u308f\u307e\u3057\u307e\u3059\u3002
\n\u3069\u3063\u3061\u304b\u3063\u3066\u3044\u3046\u3068\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc\u3059\u308b\u3053\u3068\u306e\u307b\u3046\u304c\u591a\u3044\u304b\u306a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
Java\u3067\u3088\u304f\u8a00\u308f\u308c\u308b\u30b7\u30e3\u30ed\u30fc\u30b3\u30d4\u30fc\u3068\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc\u306b\u3064\u3044\u3066 \u30b7\u30e3\u30ed\u30fc\u30b3\u30d4\u30fc\u3000\u306fshallow copy\u306e\u30ab\u30bf\u30ab\u30ca\u3067\u3001\u6d45\u3044\u8907\u88fd\u3068\u3044\u3046\u610f\u5473\u3067\u3059\u3002 \u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc\u3000\u306fdeep copy\u306e\u30ab\u30bf\u30ab\u30ca\u3067\u3001\u6df1\u3044\u8907\u88fd\u3068\u3044\u3046\u610f\u5473\u3067\u3059\u3002 […]<\/p>\n","protected":false},"author":2,"featured_media":17178,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,4],"tags":[703],"class_list":["post-6821","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-programming","category-diary","tag-java"],"_links":{"self":[{"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/posts\/6821","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/comments?post=6821"}],"version-history":[{"count":0,"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/posts\/6821\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/media\/17178"}],"wp:attachment":[{"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/media?parent=6821"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/categories?post=6821"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/tags?post=6821"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}