JAVA program for triangle number pattern 15

This program is to print triangle number pattern 15 in JAVA.

1
123
12345
1234567
123456789

If you need a dry run of the program or any other query, then kindly leave a comment in the comment box or mail me, I would be more than happy to help you.

Program

import java.util.*;
 
class np15
{
	public static void main(String args[])
	{
		int i,j,n;
 		Scanner sc = new Scanner(System.in);
    		System.out.println("Enter the no of lines");
 		n=sc.nextInt();
    		for(i=1;i<=n;i++)
    		{
	       		for(j=1;j<=(i*2-1);j++)
        		{
            			System.out.print(j);
        		}
 
        		System.out.println("");
    		}
	}
}

Output