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)); hm.put("Backpack", new Integer(1200));
现在,检索所有值-
Collection getValues = hm.values(); System.out.println("\nValues..."); Iterator i = getValues.iterator(); while (i.hasNext()) { System.out.println(i.next()); }
以下是获取HashMap中所有值的集合的示例-
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)); hm.put("Backpack", new Integer(1200)); System.out.println("Map = "+hm); Collection getValues = hm.values(); System.out.println("\nValues..."); Iterator i = getValues.iterator(); while (i.hasNext()) { System.out.println(i.next()); } } }
输出结果
Map = {Backpack=1200, Belt=600, Wallet=700} Values... 1200 600 700