例如给一个0-10000的整数6789;分解出6/7/8/9并计算6+7+8+9=24;
下列代码:
package com.test;
import java.util.Scanner;
import org.junit.Test;
public class Dame {
@Test
public void run1() {
Scanner scan = new Scanner(System.in);
System.out.println("请输入四位数的数字!");
// 此行代码会阻塞,等待用户从键盘输入int类型数据,并接受数据赋值给变量i。
int i = scan.nextInt();
if(999<i&&i<9999) {
int x1 = i / 1000;
int x2 = i / 100 % 10;
int x3 = i / 10 % 10;
int x4 = i % 10;
System.out.println("各位数字之和为"+(x1 + x2 + x3 + x4));
System.out.println("x1="+x1);
System.out.println("x2="+x2);
System.out.println("x3="+x3);
System.out.println("x4="+x4);
}else {
System.out.println("您输入的数字格式有误;");
run1();
};
}
}
运行结果: