Number Pyramid

//4.17
//Prepared by Ethan Glover

import java.util.Scanner;
public class Prog4i17 {
public static void main(String[] args) {

     //Ask for user input
        Scanner input = new Scanner(System.in);
        System.out.println("Enter the number of lines: ");
        int n = input.nextInt();

        //Loop
        for (int i = 1; i <= n; i++) {
                if (i <= 9) {
                //Print spaces
                for (int j = i; j < n; j++)
                        System.out.print("  ");
                //Print numbers n-1
                for (int k = i; k >= 1; k--)
                        System.out.print(" " + k);
                //Print numbers 1+1 - n
                for (int l = 2; l <= i; l++)
                        System.out.print(" " + l);
                System.out.println();
                }
                else {
                //Print spaces
                for (int j = i; j < n; j++)
                        System.out.print("   ");
                //Print numbers n-1
                for (int k = i; k >= 1; k--)
                        System.out.print(" " + k);
                //Print numbers 1+1 - n
                for (int l = 2; l <= i; l++)
                        System.out.print(" " + l);
                System.out.println();
                }
        }
}
}