software_testing_work3_question1

 package com.Phantom;

 import java.io.IOException;
 import java.util.Scanner;

 public class Work3_1 {
     /**
      * @param args
      * @throws IOException
      */
     public static void main(String[] args) throws IOException {
         // TODO Auto-generated method stub
         Scanner in=new Scanner(System.in);
         System.out.println("请输入两个数字");
         int num1=in.nextInt();
         int num2=in.nextInt();
         System.out.println("最大公约数为>>>"+operation(num1,num2));
     }
     public static int operation(int a,int b) throws IOException {
         int num=0;
         for(int i=1; i<=a; i++){
             if(b%i==0&&a%i==0){
                 num=i;
             }
         }
         return num;
     }
 }

运行结果：

findBugs: