实现代码：

package 银行账户存储管理;

import java.util.Scanner;
/******start******/


 class account {
	public String name;
	public float balance;
	
	public account(String name, float balance) {
		super();
		 = name;
		this.balance = balance;
	}
	public void save(float money){
		System.out.println("账户"+name+"存款:"+money);
		balance=balance+money;
	}
	public void draw(float money){
		balance=balance-money;
		if(balance>=0){
			System.out.println("账户"+name+"取款:"+money);
		}
		else{
			System.out.println("账户"+name+"当前余额:"+money+"元");
			balance=balance+money;
		}
	}
	public void displayBalance(){
		System.out.println("账户"+name+"余额:"+this.balance);
	}
 }

/******end******/
public  class main {
	public static void main(String[] args) {
		System.out.print("请输入账户名  当前余额   取款金额  存款金额 (中间以空格分隔)");
		Scanner scanner = new Scanner(System.in);
		String name = scanner.next();
		float balance = scanner.nextFloat();
		float saveMoney = scanner.nextFloat();
		float drawMoney = scanner.nextFloat();
		account a = new account(name, balance);
		System.out.println("output:");
                a.displayBalance();
		a.save(saveMoney);
		a.draw(drawMoney);
		a.displayBalance();
		scanner.close();
	}
	
}