account.java

java 版ATM 系统 注册登陆 存取！！！据对经典

import javax.swing.JOptionPane;

class Account
{
	private String accountNumber;
	private String password;
	private double amount=0;
	
	public Account(){}
	public Account( String Password)
	 {
			password = Password;		
	 }
	
	 public String getAccountNumber()
	 {
	 	return accountNumber;
	 }
	 
	 public void setAccountNumber( String  AccountNumber)
	 {
		 accountNumber = AccountNumber;
	 }
	 
	 public String getPassword()
	 {
	 	return password;
	 }
	 
	 public void setPassword(String Password)
	 {
		password = Password;
	 }
	
	public double getAmount()
	{
		return amount;
	}
	
	public void  Save()//存钱方法
	{
		double num = 0;
		String temp = JOptionPane.showInputDialog("请输入您要存入的金额!","0"); 
		 try
		 {
			 num = Double.parseDouble(temp);
		 }
		 catch(NumberFormatException ex)
		 {
			 JOptionPane.showMessageDialog(null,"输入出错!");
		 }
		amount += num;
	}  //存钱方法
	public void Out()//取钱方法 
	{
		 double num = 0;
		 String temp = JOptionPane.showInputDialog("请输入提取金额!","0" ); 
		 
		 try
		 {
			 num = Double.parseDouble(temp);
		 }
		 	catch(NumberFormatException ex)
		 {
			 JOptionPane.showMessageDialog(null,"您的输入出错!");
		 }
		if (amount >= num)
			amount = amount - num;
		else 
		{
		   String str = "您的余额不足!!!";
		   JOptionPane.showMessageDialog(null,str);
		}
	
	} 
	
	public void  Pwchange()//修改密码方法
	{
		String oldpw  = JOptionPane.showInputDialog("请输入您的旧密码.","0" );
		if (oldpw.equals(password))
		{
			String newpw  = JOptionPane.showInputDialog("请输入您的新密码.","0" );
			String snewpw  = JOptionPane.showInputDialog("请确认您的新密码.","0" );
			
			if (!compareTwoPassword( newpw,snewpw))
			{
				JOptionPane.showMessageDialog(null,"您两次输入的密码不一致!");

				
			}
			else 
			{
				setPassword(newpw);
				JOptionPane.showMessageDialog(null,"密码修改成功!");
			}
		}
		else
		{
			JOptionPane.showMessageDialog(null,"您输入的密码不正确!!");
		}
	}
	private boolean compareTwoPassword(String newpw,String snewpw)                                                       //两次输入密码核对方法

    {

          boolean b = false;

          if(snewpw.equals(newpw)) b=true;      //比较字符串

          return b;                                                                                                                                                             //返回布尔型变量的值

    }
	
	

}