public class XiYouJiRenWu {double height;String name;String weapon;String printName(){return name;}String pringtWeapon(){return weapon;}
}

public class TestXiYouJiRenWu {public static void main(String[] args) {// TODO 自动生成的方法存根XiYouJiRenWu zhuBaJie= new XiYouJiRenWu();XiYouJiRenWu sunWuKong= new XiYouJiRenWu();zhuBaJie.name="猪悟净";zhuBaJie.weapon="九齿钉耙";sunWuKong.name="孙悟空";sunWuKong.weapon="如意金箍棒";System.out.print(zhuBaJie.printName()+" ");System.out.println(zhuBaJie.pringtWeapon());System.out.print(sunWuKong.printName()+" ");System.out.println(sunWuKong.pringtWeapon());}
}

import java.util.Scanner;/*** 编写Java应用程序。首先定义一个描述银行账户的Account类，包括成员变
量“账号”和“存款余额”，成员方法有“存款”、“取款”和“余额查询”。其次，
编写一个主类，在主类中测试Account类的功能。* @author Administrator**/
public class Account {//属性long zhanghao;long cunkuanyue;int shuru;String caozuo;//操作命令输入方法
    String Caozuo(){Scanner sc=new Scanner(System.in);System.out.println("请输入操作指令：");caozuo= sc.nextLine();return caozuo;}//存取款金额输入方法int Shuru(){Scanner sc=new Scanner(System.in);System.out.println("请输入金额：");shuru= sc.nextInt();return shuru;}//存款方法long Cunkuan(){cunkuanyue=cunkuanyue+shuru;return cunkuanyue;}//取款方法long Qukuan(){if(cunkuanyue>0){cunkuanyue=cunkuanyue-shuru;            if(cunkuanyue<0){System.out.println("您的账户余额不足，无法取款！"+(cunkuanyue+=shuru));}else{System.out.println("您的账户余额是："+cunkuanyue);}}else{System.out.println("您的账户余额不足，无法取款！");}return cunkuanyue;}//查询余额方法long Yuechaxun(){return cunkuanyue;}
}

public static void main(String[] args) {// TODO 自动生成的方法存根Scanner sc = new Scanner(System.in);            System.out.println("请输入您的账号：");               String zhanghao = sc.nextLine();               //接收输入的账号String panduan="^\\d{19}$";                    //正则表达式Account person= new Account();                 //实例化对象if(zhanghao.matches(panduan)){                 //利用正则表达式判断账号System.out.println("您账户余额是："+person.Yuechaxun());for(int i=1;i>0;i++){                      //死循环实现多次存取款
                person.Caozuo();switch(person.caozuo){                          //调用操作方法执行操作命令case "存款":                             //存款时调用存款方法person.Shuru();                     //调用输入金额方法接收存款金额System.out.println("您账户的余额是："+person.Cunkuan());break;case "取款":                           //取款是调用取款方法
                    person.Shuru();person.Qukuan();break;case "查询余额":                       //查询余额时调用查询余额方法System.out.println("您账户的余额是："+person.Yuechaxun());break;default:System.out.println("输入有误！");}if(person.caozuo.equals("停止")){break;                             //让死循环停止
                }}}else{System.out.println("输入有误！");}}
}

public class Clock {int h;int miu;int s;Clock(int hour,int minut,int secend){h=hour;miu=minut;s=secend;}public void show(){if(h>=0&&h<=23){if(miu>=0&&miu<=59){if(s>=0&&s<=59){System.out.println("时间是："+h+"时"+miu+"分"+s+"秒");}else{System.out.println("时间不合法！");}}else{System.out.println("时间不合法！");}}else{System.out.println("时间不合法！");}}
}

public class TestClock {public static void main(String[] args) {// TODO 自动生成的方法存根Clock a=new Clock(3,24,45);Clock b=new Clock(10,12,46);Clock c=new Clock(12,60,247);a.show();b.show();c.show();}
}