Concatenate string using for Loop

/* Write a program to Concatenate  string using for Loop   Example:          Input - 5          Output - 1 2 3 4 5 */

class Join{

      public static void main(String args[]){

      int num = Integer.parseInt(args[0]);

      String result = " ";

      for(int i=1;i<=num;i++){

           result = result + i + " ";

      }

      System.out.println(result);

  }

}

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