Java Program to display the pattern with a number

import java.util.Scanner;
public class demo1 
{
   public static void main(String[] args)
         {
               int i,j,n;
            System.out.print("Input number of rows : ");
            Scanner input = new Scanner(System.in);
		    n = input.nextInt();
           for(i=1;i<=n;i++)
                 {
                	for(j=1;j<=i;j++)
	               System.out.print(j);  
                       System.out.println("");
                 }
         }
}