account.java

本程序用Java语言描述了一个基本的银行管理系统

package banking.domain;

public class Account {
	protected double balance;
	
	public Account(double init_balance){
		this.balance = init_balance;
	}
	
	public double getBalance(){
		return this.balance;
	}
	public boolean deposit(double amt){
		if (amt>0.0){
			this.balance += amt;
			return true;
		}
		return false;
	}
	public void withdraw(double amt) throws OverdraftException{
		if (this.balance-amt>0.0){
			this.balance -= amt;
		}
		else{
			throw new OverdraftException("Insufficient funds", amt-this.balance);
		}
	}
}