[Solved] what is wrong in my program ? i am trying to find the list of prime number from n to m

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I have implemented it my way. Hope this helps.

import java.util.Scanner;
class PrimeNumbers
{
   public static void main (String[] args)
   {        
      Scanner scanner = new Scanner(System.in);
      int i =0;
      int num =0;
      //Empty String
      String  primeNumbers = "";
      System.out.println("Enter the value of n:");
      int n = scanner.nextInt();
       System.out.println("Enter the value of m:");
      int m = scanner.nextInt();

      for (i = n; i <= m; i++)         
      {                   
         int counter=0;           
         for(num =i; num>=1; num--)
         {
        if(i%num==0)
        {
        counter = counter + 1;
        }
     }
     if (counter ==2)
     {
        //Appended the Prime number to the String
        primeNumbers = primeNumbers + i + " ";
     }  
      } 
      System.out.println("Prime numbers from m to n are :");
      System.out.println(primeNumbers);
   }
}

1

solved what is wrong in my program ? i am trying to find the list of prime number from n to m