摘要:
package org.hanqi.array; public class BaoZhuang { public static void main(String[] args) { //包装类 Long l=new Long(100); Long l1=new Long("1000"); Strin 阅读全文
摘要:
package wanzai; public class Fruit { private static Fruit color=null; private Fruit() { } public static Fruit getcolor(){ if(color==null){ color=new F 阅读全文
摘要:
public class JiSuanQi { //整形加法 public int add(int a,int b) { return a+b; } //重载 参数个数不同 public double add(int c,int d,int e) { return c+d+e; } //浮点型加法 阅读全文