overdraftaccount.java

来自「一些java的小程序.包括排序,一些bank的小计算,」· Java 代码 · 共 53 行

import java.math.*;

public class OverdraftAccount extends BankAccount
{
	// Add new data here.
	private double overdraftLimit;

	// Constructor with 2 parameters
	public OverdraftAccount(String ownersName, double openingBalance)
	{
		super(ownersName, openingBalance);
	}

	// Constructor with 3 parameters
	public OverdraftAccount(String ownersName, double openingBalance, double aLimit)
	{	
	
	      super(ownersName, openingBalance);
	      if(openingBalance - aLimit > aLimit)
		  	overdraftLimit = aLimit;
		  else
            aLimit = openingBalance;
}
	// add any get/set methods here.
	public void setLimit(double aLimit)
	{
		overdraftLimit = aLimit;
		
	}
	
	public double getLimit()
	{
		return overdraftLimit;
	}

	// Override methods here.
	public void withdraw(double amount)
	{
		double tempBalance = getBalance();
		if(Math.abs((tempBalance -= amount)) <= overdraftLimit)
		{
			setBalance(tempBalance -= amount);
		}
		
	}

	public String toString()
	{
		//super.toString();
		return super.toString() +", limit:" + getLimit();
	}
}