{"id":6344,"date":"2011-03-26T08:00:26","date_gmt":"2011-03-25T23:00:26","guid":{"rendered":"http:\/\/www.sssg.org\/blogs\/hiro345\/?p=6344"},"modified":"2011-03-19T20:32:34","modified_gmt":"2011-03-19T11:32:34","slug":"java-hashmap","status":"publish","type":"post","link":"https:\/\/www.hiro345.net\/blogs\/hiro345\/archives\/6344.html","title":{"rendered":"Java HashMap"},"content":{"rendered":"

Java\u306eHashMap\u4f7f\u7528\u4f8b<\/p>\n

HashMapSample.java \u3092\u7528\u610f\u3057\u307e\u3059\u3002\u7a7a\u3060\u3063\u305f\u3089\u8ffd\u52a0\u3001\u3059\u3067\u306b\u3042\u3063\u305f\u3089\u3001WordList\u306ecnt\u30921\u5897\u52a0\u3002<\/p>\n

import java.util.HashMap;<\/p>\n

public class HashMapSample {
\n  private HashMap<String, WordInfo> map = new HashMap<String, WordInfo>();
\n  class WordInfo {
\n    int cnt = 0;
\n    String basicString;
\n    public String toString() {
\n      return cnt + " " + basicString;
\n    }
\n  }
\n  public void exec() {
\n    String[] ss = {"Java", "Ruby", "Java", "JavaScript"};
\n    for (String s : ss) {
\n      WordInfo wi = map.get(s);
\n      if (wi == null) {
\n        wi = new WordInfo();
\n        wi.cnt = 1;
\n        wi.basicString = s;
\n        map.put(s, wi);
\n      } else {
\n        wi.cnt++;
\n      }
\n    }
\n    for (String s: map.keySet()) {
\n      WordInfo wordInfo = map.get(s);
\n      System.out.println(s + ":" + wordInfo);
\n    }
\n  }
\n  public static void main(String[] args) {
\n    HashMapSample app = new HashMapSample();
\n    app.exec();
\n  }
\n}\n<\/p><\/div>\n

\u5b9f\u884c\u7d50\u679c\u306f\u6b21\u306e\u901a\u308a\u3002<\/p>\n

$ java HashMapSample 
\nRuby:1 Ruby
\nJavaScript:1 JavaScript
\nJava:2 Java\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Java\u306eHashMap\u4f7f\u7528\u4f8b<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[413],"class_list":["post-6344","post","type-post","status-publish","format-standard","hentry","category-java","tag-hashmap"],"_links":{"self":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/posts\/6344","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/comments?post=6344"}],"version-history":[{"count":2,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/posts\/6344\/revisions"}],"predecessor-version":[{"id":6348,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/posts\/6344\/revisions\/6348"}],"wp:attachment":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/media?parent=6344"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/categories?post=6344"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/tags?post=6344"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}