用java se写一个银行ATM机系统

用java se写一个银行ATM机系统，它可以现实：查询，取款，存款，退出等功能。

package com.Test7;
import java.util.Scanner;
class BankATM{
	private String id="62000340612";
	private String name="小青";
	private String adress="陕西西安";
	double balance=1212.10;
	private double balanceMin=20.00;
	Scanner sc=new Scanner(System.in);
	//操作界面
	public void show() {
		System.out.println("---------------");
		System.out.println("欢迎光临中国工商银行!");
		System.out.println("   1.[查询]");
		System.out.println("   2.[存款]");
		System.out.println("   3.[取款]");
		System.out.println("   4.[退出]");
		System.out.println("---------------");
	}
	public void login() {
		System.out.println("-----登录成功-----");
		System.out.println("帐号："+id);
		System.out.println("姓名："+name);
		System.out.println("开户地址："+adress);	
	}
	//存款
	public void deposit() {
		System.out.print("请输入存款金额：");
		double addBalance=sc.nextDouble();
		System.out.println("-----正在存款-----");
		System.out.println("帐户余额:"+balance);
		System.out.println("存款数额:"+addBalance);
		balance=addBalance+balance;
		System.out.println("最终余额:"+balance);
		System.out.println("---------------");
	}
	//取款
	public void withdrawals() {
		System.out.print("请输入取款金额：");
		double subBalance=sc.nextDouble();
		if((balance-subBalance)