savingsimpl.java

来自「bank account program. if there is savin」· Java 代码 · 共 25 行

public class SavingsImpl implements Savings
{
	private double balance;

	public SavingsImpl()
	{
		balance = 0;
	}
	
	public void deposit(double amount)
	{
		balance += amount;
	}

     	public void withdraw(double amount)
	{
		balance -= amount;
	}

    	public double getBalance()
	{
		return balance;
	}
	
}