第二次Java实验报告

package 银行系统;
 
import java.util.Scanner;
import java.util.Date;
 
class chuli {
    private String user,password,name="none",date;
    private double balance;
    public chuli(String password,double balance){
        this.setPassword(password);
        this.setBalance(balance);
    }
    public String getUser() {
        return user;
    }
    public void setUser(String user) {
        this.user = user;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public double getBalance() {
        return balance;
    }
    public void setBalance(double balance) {
        this.balance = balance;
    }
    public String getDate() {
        return date;
    }
    public void setDate(String date) {
        this.date = date;
    }
}
 
public class bank {
    static chuli per[]=new chuli[100];
static int i=-1;
static int id=0;
static String s;
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        for(int j=0;j<100;j++){
            per[j]=new chuli("123456",0.0);
            }
        zhuyemian();
    }
 
    public static void yewu(int i) {
        // TODO Auto-generated method stub
        System.out.println("1:存款 2：取款 3：变更密码 4：查询账户标识 5：查询姓名 6：查询开户日期 7：当前余额 0：返回");
        Scanner input=new Scanner(System.in);
        switch(input.nextInt()){
        case 1:System.out.println("存款金额：");
        per[i].setBalance(input.nextDouble()+per[i].getBalance());
        System.out.println("存款成功！");yewu(i);
        case 2:System.out.println("取款金额：");
        if(per[i].getBalance()-input.nextDouble()<0){
            System.out.println("余额不足！");yewu(i);
        }
        else{
        per[i].setBalance(per[i].getBalance()-input.nextDouble());
        System.out.println("取款成功！");yewu(i);
        }
        case 3:System.out.println("请输入新密码：");
        per[i].setPassword(input.next());
        System.out.println("修改成功！");yewu(i);
        case 4:System.out.println("您的账户标识为："+per[i].getUser());yewu(i);
        case 5:System.out.println("您的姓名为："+per[i].getName());yewu(i);
        case 6:System.out.println("您的开户日期为："+per[i].getDate());yewu(i);
        case 7:System.out.println("您的余额为："+per[i].getBalance());yewu(i);
        case 0:zhuyemian();
        }
    }
 
    public static void denglu() {
        // TODO Auto-generated method stub
        System.out.println("请输入您的姓名：");
        Scanner input=new Scanner(System.in);
        s=input.next();
        i=-1;
        while(i<99){
            i++;
            if(s.equals(per[i].getName())){
                System.out.println("请输入您的密码：");
                if(input.next().equals(per[i].getPassword())){
                    System.out.println("登陆成功！");
                    yewu(i);
                }
                else{
                    System.out.println("姓名或密码有误，请重新输入");
                    denglu();
                }
            }
        }
        System.out.println("没有此用户！");
        zhuyemian();
    }
 
    public static void kaihu() {
        // TODO Auto-generated method stub
        per[id]=new chuli("123456",0.0);
        if(id>=100){
            s="uniqueid"+id;
            per[id].setUser(s);
}else if(id>=10){
            s="uniqueid0"+id;
            per[id].setUser(s);
}else{
            s="uniqueid00"+id;
            per[id].setUser(s);
}
        Date date=new Date();
        per[id].setDate(date.toString());
        System.out.println("请输入您的姓名：");
        Scanner input=new Scanner(System.in);
        per[id].setName(input.next());
        System.out.println("开户成功，您的初始密码为123456，请尽快更改！");
        id++;
        denglu();
    }
 
    public static void zhuyemian() {
        // TODO Auto-generated method stub
        System.out.println("1：开户 2：业务办理");
        Scanner input =new Scanner(System.in);
        s=input.next();
        if(s.equals("1")){
kaihu();
}
        if(s.equals("2")){
denglu();
}
    }
}