creditaccount.java

加拿大达内科技有限公司配需java程序员的上课时的代码

package com.sd0709.bank.biz.entity;

public class CreditAccount extends Account {
    private double overdraft;
	public double getOverdraft() {
		return overdraft;
	}

	public void setOverdraft(double overdraft) {
		this.overdraft = overdraft;
	}
	public void withdraw(double amount)throws WithdrawException{
		double bal = getBal();
		double over = bal - amount;
		if(over>=0){
			setBal(over);
		}else if((over+overdraft)>=0){
		    setBal(0);
		    overdraft = overdraft+over;
		}else if((over+overdraft)<0){
			throw new WithdrawException("credit not enough");
		}
	}
	public CreditAccount(String actNo, double bal,double overdraft) {
		super(actNo, bal);
		this.overdraft = overdraft;
		// TODO Auto-generated constructor stub
	}

	public CreditAccount() {
		// TODO Auto-generated constructor stub
	}

}