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import java.util.*; public class MapStudy { public static void main(String args[]) { HashMap<Integer, String> hm = new HashMap<Integer, String>(); // 实现 map 接口 hm.put(110,"Ravi"); hm.put(120,"Prateek"); hm.put(130, "Davesh"); hm.put(140, "Kamal"); hm.put(150, "Pawan"); for (Integer Key: hm.keySet()) //迭代遍历key { // 返回指定 key 映射到的值 String lastname=hm.get(Key); System.out.println("Key: " + Key + ", Value: " + lastname); } } }
运行结果 :
正在执行...
