checkingaccount.java

来自「东软JAVA内部资料」· Java 代码 · 共 41 行

package com.neusoft.course.oo;

public class CheckingAccount extends Account {
	private double overdraftProtection;
	
	public CheckingAccount(double balance, double protection) {
		super(balance);
		this.overdraftProtection = protection;
	}
	
	@Override
	public boolean withDraw(double amount) {		
		double result = balance - amount;
		if ((result + overdraftProtection) >= 0) {
			balance = result;
			return true;
		} else {
			return false;
		}
	}

	public double getOverdraftProtection() {
		return overdraftProtection;
	}

	public void setOverdraftProtection(double overdraftProtection) {
		this.overdraftProtection = overdraftProtection;
	}
	
	public String getInfo() {
		return "checking: " + String.valueOf(balance);
	}
	
	public static void main(String[] args) {
		Account account = new CheckingAccount(500, 500);
		boolean result = account.withDraw(800);
		System.out.println(result);
	}
	
}