import java.util.Scanner;

public class DisCountDemo {

    //根据商品总价输出折后总价

public static void main(String[] args) {

//定义对象

DisCountDemo demo = new DisCountDemo();

//定义商品总价存放到变量中

double price = 150; 

//调用方法，输出折后商品总价

double discountPrice = demo.discountPrice(price);

System.out.println("折后商品总价为:"+discountPrice);

}

public double discountPrice(double price){

    if(price>=200){

        price = price*0.85;

    }else if(price>=100){

        price = price*0.95;

    }

    return price;

}

}