Java program to Concatenate natural numbers up to given range

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/* Write a program to Concatenate natural numbers up to given range 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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