Java第三次作业

package Home;

import java.util.Scanner;

public class Home {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner input=new Scanner(System.in);
        System.out.println("请输入单品价格");
        double price=input.nextDouble();
        System.out.println("请输入数量");
        int num=input.nextInt();
        double sum,discount;
        sum=price*num;
        discount=0.8*sum;
        System.out.println("总价为"+sum+"\t"+"折后价为"+(int)discount);
        System.out.println("求输入付款金额");
        int pay=input.nextInt();
        System.out.println("找零:"+(pay-(int)discount));
        
        

    }

}

package Home2;

import java.util.Scanner;

public class Home2 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner input=new Scanner(System.in);
        System.out.println("请输入数字");
        int num=input.nextInt();
        int a,b,c;
        a=num/100;
        b=num/10%10;
        c=num%10;
        System.out.println("百位数字为"+a+"\t"+"十位数字位"+b+"\t"+"个位数字为"+c);
        
    }

}

package Home3;

import java.util.Scanner;
import java.util.regex.Pattern;

public class Home3 {

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

}

package Home4;

import java.util.Scanner;

public class Home4 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner input=new Scanner(System.in);
        System.out.println("输入两个数字");
        int a=input.nextInt();
        int b=input.nextInt();
        int c;
        c=a>b?a:b;
        System.out.println(c);

    }

}