简易银行业务处理

[java]代码库

package itcast;

 class Bank {
    static String bankName;//定义静态变量银行名称
    private String name;//用户名
    private String password;//密码
    private double balance;//用户余额
    private double turnover;//交易额
    //进入银行时，欢迎语
    static void welcome() {
    	System.out.println("欢迎来到"+bankName);
    }
    //通过构造方法进行开户操作
    public Bank(String name,String password,double turnover) {
    	this.name=name;
    	this.password=password;
    	this.turnover=turnover;
    	this.balance=turnover-10;
    	System.out.println(name+"开户成功，账户余额"+balance);
    }
    //存款
    public void deposit(double turnover) {
    	balance=balance+turnover;
    	System.out.println(name+"您好，您的账户 已存入"+turnover+
    			"元."+"当前账户余额"+balance+"元");
    }
    //取款
    public void withdrawal(String password,double turnover) {
    	if(this.password!=password) {
    		System.out.println("您输入的密码错误");
    		return;
    	}
    	if(balance-turnover>0) {
    		balance=balance-turnover;
    		System.out.println(name+"您好，您的账户 已取出"+turnover+"元，"
    				+"当前余额"+balance+"元");
    	}else {
    		System.out.println("对不起，账户余额不足！");
    	}
    	
    }
    //离开时
    static void welcomNext() {
    	System.out.println("请携带好您的随身财物，欢迎下次光临"+bankName);
    }
}



public class Trade {

	public static void main(String[] args) {
		Bank.bankName="中国农业银行";
		Bank.welcome();
		//张三去银行开户，调用构造方法
		Bank bank=new Bank("张三","123456",10000.0);
		//进行存款
		bank.deposit(1200.00);
		//取款时密码输入错误
		bank.withdrawal("132456",20000.0);
		//取款时密码正确，余额不足
		bank.withdrawal("123456",20000.0);
		//取款时密码正确，余额充足
		bank.withdrawal("123456",5000.0);
		//离开银行
		Bank.welcomNext();

	}

}