Question

求各位大神，这道java题的代码

新手

Answer 1

import java.util.Scanner;
public static void main(String[] args) {
		int sum=0;
		boolean flag=true;
		Scanner scan = new Scanner(System.in);
		System.out.println("请输入您的卡号(4位数字)：");
		String str = scan.nextLine();
		for(int i=0;i<4;i++) {
			sum+=str.charAt(i)-'0';
			if(str.charAt(i)=='8'||(i==3&&sum%8!=0)) {flag=false;break;}
		}
		System.out.println("您的卡号个位为："+str.charAt(3));
		System.out.println("您的卡号十位为："+str.charAt(2));
		System.out.println("您的卡号百位为："+str.charAt(1));
		System.out.println("您的卡号千位为："+str.charAt(0));
		System.out.println("您的卡号所有数字之和为："+(str.charAt(0)+str.charAt(1)+str.charAt(2)+str.charAt(3)-'0'*4));
		System.out.println("您是否中奖："+flag);
	}

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，

Answer 2

package lianxi;
import java.util.Scanner;
public class Demo04 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("请输入您的卡号(4位数字);");
int num = sc.nextInt();
//个
int units = num%10;
//十
int tens = (num/10)%10;
//百
int hundreads = (num/100)%10;
//万
int thousands = (num/1000)%10;
//所有数字之和
int sum = units+tens+hundreads+thousands;
System.out.println("您的卡号个位为:"+units);
System.out.println("您的卡号十位为:"+tens);
System.out.println("您的卡号百位为:"+hundreads);
System.out.println("您的卡号万位为:"+thousands);
System.out.println("您的卡号所有数字之和为:"+sum);
if(sum%8==0 && units!=8 && tens!=8 && hundreads!=8 && thousands!=8) {
System.out.println("您是否中奖:"+true);
}else {
System.out.println("您是否中奖:"+false);
}
}
}