题解 | #计算商场折扣#

典型的利用多if分支来对每种情况进行一个的分类计算，最后利用（int）来进行强制类型转换

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner console = new Scanner(System.in);
        int price = console.nextInt();
        int cost = 0;

        //write your code here......
        if(price>=5000){
            cost = (int)(price*0.6);
        }else if(price>=2000){
            cost = (int)(price*0.7);
        }else if(price>=500){
            cost = (int)(price*0.8);
        }else if(price>=100){
            cost = (int)(price*0.9);
        }else{
            cost = (int)price;
        }

        System.out.println(cost);
    }
}