Mapæ¯ä¸ä¸ªæ¥å£å¯¹è±¡ï¼HashMapæ¯å®ç°äºè¯¥æ¥å£çåå¸å¯¹è±¡ç±»ï¼å¦ä¸ä¸ªå®ç°Mapæ¥å£çç±»æ¯Hashtable(ä¹æ¯åå¸å¯¹è±¡ç±»)ã
Map<?,?>ä¸ç两个é®å·æ¯ç解åå¸å¯¹è±¡çå
³é®ç¹ï¼ç¬¬ä¸ä¸ªé®å·è¡¨ç¤ºâé®âçæ°æ®ç±»åï¼ç¬¬äºé®å·è¡¨ç¤ºâå¼âçæ°æ®ç±»åï¼é®åå¼çæ°æ®ç±»åæ¯ä»»æçãææå®ç°Mapæ¥å£çç±»ï¼ä¹å°±ä¸¤ä¸ªï¼HashMapãHashtableï¼ç对象é½æ¯åºäºâé®-å¼â对çå½¢å¼æ¥åå对象çï¼
Map<String, Object> hash= new HashMap<String, Object>(); //æ¥å£å¯¹è±¡ç¨åç±»å®ä¾åï¼é®ä¸ºStringåï¼å¼ä¸ºObjectå
hash.put("Name", "å¼ ä¸å
¶"); //åå
ç´
Object obj = hash.get("Name"); //æ ¹æ®é®Nameè¿å对åºçå¼
æå
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import java.util.HashMap;
import java.util.Map;
public class Test6 {
public static void main(String[] args) {
Test6 obj = new Test6();
Map<String,Object> m = new HashMap<String,Object>();
m = obj.searchBoard();
System.out.println("Name : " + m.get("Name"));
System.out.println("Gender : " + m.get("Gender"));
}
public Map<String,Object> searchBoard(){
Map<String,Object> m = new HashMap<String,Object>();
m.put("Name","å¼ ä¸å
¶");
m.put("Gender", "ç·");
return m;
}
}
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