payreturn.java

Java 版本的设计模式源代码 简单工厂模式

package source;
import outLook.*;
import source.*;

public class payReturn extends pay {
	double price;
	int ammount;
	double payOriginal=0,payBack=0;
	public payReturn(int ammount,double price,double payOriginal,double payBack)
	{
		this.ammount=ammount;
		this.price=price;
		this.payOriginal=payOriginal;
		this.payBack=payBack;
	}
	public String finalPay()
	{
		if(price*ammount>=payOriginal)
		{
			double temp=price*ammount-payBack;
			return ""+temp;
		}
		else		
			return ""+(price*ammount);
	}

}