t6_3_offen.java

多个java程序

public class T6_3_Offen extends T5_3_Account {
	//透支上限属性
	private double uplimit;
	
	public T6_3_Offen(){
		uplimit=1000;
	}
	
	public T6_3_Offen(int limit){
		uplimit=limit;
	}
	
	//提款
	public void withdraw(double amount){
		if(amount<=balance+uplimit){
			balance=balance-amount;
			System.out.println("取款成功");
		}
		else{
			System.out.println("透支过多，操作无效");
		}
	}
}