JAVA第三次作业

1.输入商品单价，数量，求总价。活动8折后抹零，计算活动价。
输入付款金额，计算找零并输出

package zuoye1;

import java.util.Scanner;

public class Test6 {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
       Scanner input=new Scanner(System.in);
       System.out.println("请输入单价");
       double price=input.nextDouble();
       
       System.out.println("请输入数量");
       int shuliang=input.nextInt();
       
       System.out.println("总价"+price*shuliang);
       
       System.out.println("折后价"+price*shuliang*0.8);
       
       System.out.println("请输入付费金额");
       
       int pay=input.nextInt();
       System.out.println("应找"+(pay-price*shuliang*0.8));
    }

}

2.输入一个三位数，求个位，十位和百位。

package zuoye1;

import java.util.Scanner;

public class Test7 {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
         Scanner input=new Scanner(System.in);
         System.out.println("请输入一个三位数");
         int shu=input.nextInt();
         int ge=shu%10;
         int bai=shu/100;
         int shi=shu/10%10;
         System.out.println("个位是"+ge+"十位是"+shi+"百位是"+bai);
         

    }

}

3.输入大写字母，转成对应的小写字母

package zuoye1;

import java.util.Scanner;

public class Test8 {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
         System.out.println("输入一个大写字母");
         Scanner input=new Scanner(System.in);
         char c=input.next().charAt(0);
         System.out.println("对应的小写字母是"+(char)(c+32));
    }

}

4.输入2个数，用三目运算符，输出较大数

package zuoye1;

import java.util.Scanner;

public class Test9 {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
       Scanner input=new Scanner(System.in);
       System.out.println("请输入第一个数");
       int num1=input.nextInt();
       System.out.println("请输入第二个数");
       int num2=input.nextInt();
       int max=num1>num2?num1:num2;
       System.out.println("较大的数是"+max);
    }

}