[编程入门]自定义函数处理最大公约数与最小公倍数-题解（Java代码）

解题思路:

注意事项:

参考代码:

package LiXiTiXh;

import java.util.Scanner;

public class A1040 {

public static void main(String[] args) {

Scanner in = new Scanner(System.in);

double aa = in.nextFloat();

for (int i = 0; i < 3; i++) {

if (i==0) {

System.out.printf("%6.2f",aa);

System.out.println();

}else if (i==1) {

System.out.printf("%6.2f %6.2f",aa,aa);

System.out.println();

}else if (i==2) {

System.out.printf("%6.2f %6.2f %6.2f",aa,aa,aa);

System.out.println();

}

}

}

}