java之hashCode

package com.simope.myTest;

import java.util.HashMap;
import java.util.Map; public class Test20151022 { public static void main(String[] args) { int count = 0; String str = "hello world";
String myStr = "hello world"; Map<String, Object> map = new HashMap<String, Object>();
Map<String, Object> myMap = new HashMap<String, Object>(); map.put("name", "zhangsan");
map.put("age", "12");
map.put("sex", "man"); myMap.put("name", "zhangsan");
myMap.put("age", "13");
myMap.put("sex", "women"); System.out.println((++count) + ": " + str.hashCode()); System.out.println((++count) + ": " + myStr.hashCode()); System.out.println("############################################"); System.out.println((++count) + ": " + map.get("name").hashCode()); System.out.println((++count) + ": " + map.get("age").hashCode()); System.out.println((++count) + ": " + map.get("sex").hashCode()); System.out.println("############################################"); System.out.println((++count) + ": " + myMap.get("name").hashCode()); System.out.println((++count) + ": " + myMap.get("age").hashCode()); System.out.println((++count) + ": " + myMap.get("sex").hashCode()); System.out.println("############################################"); System.out.println((++count) + ": " + str.getClass()); System.out.println((++count) + ": " + myMap.getClass()); System.out.println("############################################"); } }
上一篇:Excel学习 -- 数据透视表功能


下一篇:Java 基础 IO