{"id":7790,"date":"2017-09-22T11:24:31","date_gmt":"2017-09-22T02:24:31","guid":{"rendered":"http:\/\/r-dimension.xsrv.jp\/classes_j\/?p=7790"},"modified":"2025-04-30T16:15:52","modified_gmt":"2025-04-30T07:15:52","slug":"hashmap","status":"publish","type":"post","link":"https:\/\/r-dimension.xsrv.jp\/classes_j\/hashmap\/","title":{"rendered":"\u30cf\u30c3\u30b7\u30e5\u30de\u30c3\u30d7\uff08\u9023\u60f3\u914d\u5217\uff09"},"content":{"rendered":"\n

Processing\u306b\u306f\u901a\u5e38\u306e1\u6b21\u5143\u914d\u5217\u30012\u6b21\u5143\u914d\u5217\u3001\u52d5\u7684\u914d\u5217\u306e\u4ed6\u306b\u3082\u3001\u30cf\u30c3\u30b7\u30e5\u30de\u30c3\u30d7\uff08\u9023\u60f3\u914d\u5217\uff09\u3068\u3044\u3046\u4fbf\u5229\u306a\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002JSON\u3084XML\u306a\u3069\u306f\u3001\u3053\u306e\u30cf\u30c3\u30b7\u30e5\u30de\u30c3\u30d7\u3092\u5916\u90e8\u30d5\u30a1\u30a4\u30eb\u306b\u4fdd\u5b58\u3057\u305f\u3082\u306e\u3060\u3068\u8003\u3048\u3066\u3082\u3044\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n\n\n\n\n

import java.util.Map;  \/\/\u30cf\u30c3\u30b7\u30e5\u30de\u30c3\u30d7\u306e\u6a5f\u80fd\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\nimport java.util.HashMap;\nimport java.util.Arrays;\n\n\/\/\u7a7a\u306e\u30cf\u30c3\u30b7\u30e5\u30de\u30c3\u30d7\u3092\u4f5c\u6210\n\/\/key\u306b\u4f7f\u3046\u30c7\u30fc\u30bf\u578b\u3068\u3001value\u306b\u4f7f\u3046\u30c7\u30fc\u30bf\u578b\u3092\u6307\u5b9a\nHashMap<String, Integer> hm = new HashMap<String, Integer>();\n\n\/\/\u30cf\u30c3\u30b7\u30e5\u30de\u30c3\u30d7\u306bkey\u3068value\u306e\u30bb\u30c3\u30c8\u3092\u8ffd\u52a0\nhm.put(\"\u6589\u85e4\u3055\u3093\", 15);\nhm.put(\"\u4e2d\u91ce\u3055\u3093\", 35);\nhm.put(\"\u9234\u6728\u3055\u3093\", 60);\n\n\/\/ \u30cf\u30c3\u30b7\u30e5\u30de\u30c3\u30d7\u306e\u4e2d\u306b\u3042\u308b\u8981\u7d20\u3092\u5168\u3066\u9806\u756a\u306b\u53d6\u308a\u51fa\u3059\nfor (Map.Entry me : hm.entrySet()) {\n  println(me.getKey() + \" \u306f \" + me.getValue() + \"\u624d\");\n}\n\n\/\/\u30cf\u30c3\u30b7\u30e5\u30de\u30c3\u30d7\u306e\u4e2d\u8eab\u304c\u7a7a\u304b\u3069\u3046\u304b\u3092\u30c1\u30a7\u30c3\u30af\nprintln( \"Is Empty? \" + hm.isEmpty());\n\n\/\/key\u304c\"\u4e2d\u91ce\u3055\u3093\"\u306evalue\u3092\u53d6\u308a\u51fa\u3059\nprintln(\"\u4e2d\u91ce\u3055\u3093\u306f \" + hm.get(\"\u4e2d\u91ce\u3055\u3093\"));\n\n\/\/\u30cf\u30c3\u30b7\u30e5\u30de\u30c3\u30d7\u306e\u8981\u7d20\u6570\nprintln( \"\u8981\u7d20\u6570: \" + hm.size());\n\n\/\/key\u304c\"\u4e2d\u91ce\u3055\u3093\"\u306ekey\u3068value\u306e\u30bb\u30c3\u30c8\u3092\u524a\u9664\nprintln( \"\u524a\u9664: \" + hm.remove(\"\u4e2d\u91ce\u3055\u3093\"));\n\n\/\/\u30cf\u30c3\u30b7\u30e5\u30de\u30c3\u30d7\u306e\u8981\u7d20\u6570\u3092\u518d\u5ea6\u78ba\u8a8d\nprintln( \"\u8981\u7d20\u6570(\u524a\u9664\u5f8c): \" +hm.size());\n\n\/\/key\u304c\"\u4e2d\u91ce\u3055\u3093\"\u306e\u8981\u7d20\u304c\u3042\u308b\u304b\u3092\u78ba\u8a8d\nprintln( \"'\u4e2d\u91ce\u3055\u3093'\u3092\u542b\u3080\u8981\u7d20: \" + hm.containsKey(\"\u4e2d\u91ce\u3055\u3093\"));<\/code><\/pre>\n\n\n\n
\u3082\u3046\u4e00\u3064\u8a66\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\"\"<\/a><\/figure>\n\n\n\n
import java.util.HashMap; \/\/ HashMap\u3092\u4f7f\u3046\u305f\u3081\u306b\u5fc5\u8981\u306a\u547d\u4ee4\n\nvoid setup() {\n  size(600, 100); \/\/ \u30ad\u30e3\u30f3\u30d0\u30b9\u306e\u30b5\u30a4\u30ba\uff08\u6a2a600\u30d4\u30af\u30bb\u30eb\u3001\u7e26100\u30d4\u30af\u30bb\u30eb\uff09\n  background(255); \/\/ \u80cc\u666f\u3092\u767d\u306b\u3059\u308b\n\n  \/\/ HashMap\u3092\u4f5c\u6210\u3002\u30ad\u30fc\u306f\u8272\u306e\u540d\u524d\uff08\u6587\u5b57\u5217\uff09\u3001\u5024\u306fRGB\u306e\u914d\u5217\uff08\u6574\u6570\u306e\u914d\u5217\uff09\n  HashMap<String, Integer[]> palette = new HashMap<String, Integer[]>();\n\n  \/\/ HashMap\u306b\u8272\u3092\u767b\u9332\u3059\u308b\n  \/\/ \u305f\u3068\u3048\u3070\u300c\"red\"\u300d\u3068\u3044\u3046\u540d\u524d\u306b [239, 71, 111] \u3068\u3044\u3046\u8d64\u7cfb\u306e\u8272\u3092\u5bfe\u5fdc\u3055\u305b\u3066\u3044\u308b\n  palette.put(\"red\", new Integer[]{239, 71, 111});\n  palette.put(\"yellow\", new Integer[]{255, 209, 102});\n  palette.put(\"green\", new Integer[]{6, 214, 160});\n  palette.put(\"blue\", new Integer[]{17, 138, 178});\n  palette.put(\"dark\", new Integer[]{7, 59, 76});\n\n  \/\/ \u5168\u4f53\u306e\u6a2a\u5e45\u3092\u3001\u8272\u306e\u6570\u3067\u5272\u3063\u3066\u30011\u3064\u306e\u8272\u306e\u5e45\u3092\u6c7a\u3081\u308b\n  int numColors = palette.size();        \/\/ HashMap\u306b\u767b\u9332\u3055\u308c\u305f\u8272\u306e\u6570\n  int rectWidth = width \/ numColors;     \/\/ 1\u3064\u306e\u56db\u89d2\u306e\u5e45\n  int index = 0;                          \/\/ \u4f55\u756a\u76ee\u306e\u56db\u89d2\u304b\u3092\u6570\u3048\u308b\u305f\u3081\u306e\u5909\u6570\n\n  \/\/ HashMap\u306e\u4e2d\u306e\u30ad\u30fc\uff08\u8272\u306e\u540d\u524d\uff09\u3092\u9806\u756a\u306b\u53d6\u308a\u51fa\u3057\u3066\u3044\u304f\n  for (String key : palette.keySet()) {\n\n    \/\/ \u8272\u306e\u5024\uff08RGB\u306e\u914d\u5217\uff09\u3092\u53d6\u308a\u51fa\u3059\n    Integer[] rgb = palette.get(key);\n\n    \/\/ \u5857\u308a\u306e\u8272\u3092\u8a2d\u5b9a\uff08RGB\u305d\u308c\u305e\u308c\u306e\u5024\u3092\u6307\u5b9a\uff09\n    fill(rgb[0], rgb[1], rgb[2]);\n    noStroke(); \/\/ \u7dda\u306a\u3057\u3067\u56db\u89d2\u3092\u63cf\u304f\n\n    \/\/ \u56db\u89d2\u3092\u63cf\u753b\u3002\u4f4d\u7f6e\u306f index \u306b\u3088\u3063\u3066\u305a\u3089\u3057\u3066\u3044\u304f\n    rect(index * rectWidth, 0, rectWidth, height);\n\n    \/\/ \u8272\u306e\u540d\u524d\u3092\u6587\u5b57\u3067\u8868\u793a\u3059\u308b\uff08\u767d\u6587\u5b57\uff09\n    fill(255); \/\/ \u767d\u8272\n    textAlign(CENTER, CENTER); \/\/ \u30c6\u30ad\u30b9\u30c8\u3092\u4e2d\u592e\u63c3\u3048\u306b\u3059\u308b\n    textSize(14); \/\/ \u6587\u5b57\u306e\u5927\u304d\u3055\n    text(key, index * rectWidth + rectWidth \/ 2, height \/ 2);\n\n    \/\/ \u6b21\u306e\u4f4d\u7f6e\u306b\u9032\u3080\u305f\u3081\u306b index \u3092\u5897\u3084\u3059\n    index++;\n  }\n}\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
Processing\u306b\u306f\u901a\u5e38\u306e1\u6b21\u5143\u914d\u5217\u30012\u6b21\u5143\u914d\u5217\u3001\u52d5\u7684\u914d… Read more »<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,27],"tags":[],"class_list":["post-7790","post","type-post","status-publish","format-standard","hentry","category-processing","category-27"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/posts\/7790","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/comments?post=7790"}],"version-history":[{"count":9,"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/posts\/7790\/revisions"}],"predecessor-version":[{"id":13847,"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/posts\/7790\/revisions\/13847"}],"wp:attachment":[{"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/media?parent=7790"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/categories?post=7790"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/tags?post=7790"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}