第三次上机作业

1.输入两个数交换后输出

package nj666;

import java.util.Scanner;

public class h1 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner input=new Scanner(System.in);
          System.out.println("请输入a值");
          int a=input.nextInt();
          System.out.println("请输入b值");
          int b=input.nextInt();
          int c ;
          c=a;
          a=b;
          b=c;
          System.out.println(a+","+b);
       
    }

}

2.输入两个数,求平方和

package nj666;

import java.util.Scanner;

public class h1 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner input=new Scanner(System.in);
          System.out.println("请输入a值");
          int a=input.nextInt();
          System.out.println("请输入b值");
          int b=input.nextInt();
          System.out.println(a*a+b*b);
       
    }

}

3.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 nj666;

import java.util.Scanner;

public class h1 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner input=new Scanner(System.in);
          System.out.println("请输入商品单价");
          int a=input.nextInt();
          System.out.println("请输入商品个数");
          int b=input.nextInt();
          int c=a*b;
          System.out.println(c+","+c/10*8);
       
    }

}

4.输入一个三位数，求个位，十位和百位

package nj666;

import java.util.Scanner;

public class h1 {

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

}

5.输入大写字母，转成对应的小写字母

package nj666;

import java.util.Scanner;

public class h1 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner input=new Scanner(System.in);
          System.out.println("请输入一个大写字母");
          char d =input.next().charAt(0);
          System.out.println((char)(d+32));
        
       
    }

}

6.输入2个数，用三目运算符，输出较大数

package nj666;

import java.util.Scanner;

public class h1 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
         Scanner input=new Scanner(System.in);
         System.out.println("请输入一个数");
         int a=input.nextInt();
         System.out.println("请输入一个数");
         int b=input.nextInt();
         int max=a>b?a:b;
         System.out.println("最大为"+max);
    }

}