让我们首先创建一个HashMap并添加元素-
HashMap hm = new HashMap(); hm.put("Wallet", new Integer(700)); hm.put("Belt", new Integer(600));
要显示内容,只需打印HashMap对象-
System.out.println("Map = "+hm);
以下是显示HashMap内容的示例-
import java.util.*; public class Demo { public static void main(String args[]) { //创建哈希映射 HashMap hm = new HashMap(); hm.put("Wallet", new Integer(700)); hm.put("Belt", new Integer(600)); System.out.println("Map = "+hm); } }
输出结果
Map = {Belt=600, Wallet=700}