savingaccount.java

看图说话

package bank.v12;

public class SavingAccount extends Account {

	public SavingAccount(double balance) throws OpenAccountException {
		super(balance);
	}

	@Override
	protected double withdraw(double out) throws OverDraftException {
		if (out > balance) {
//			throw new OverDraftException("警告:你的余额不够!");
			System.out.println("警告:你的余额不够!");
			return balance;
		}

		balance -= out;
		System.out.println("提示:取钱操作成功.");
		return balance;
	}

}