Easy Numbers Pyramid in Java

Write a java program to print Numbers Pyramid.      

            1   
        2 1 2   
    3 2 1 2 3  
 4 3 2 1 2 3 4  

import java.util.Scanner;
public class NumberPyramid
{
    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<=n-i;j++)
            {
                System.out.print("  ");
            }
            for(j=i;j>0;j--)
            {
                System.out.print(" "+j);
            }
            for(j=2;j<=i;j++)
            {
                System.out.print(" "+j);
            }
            System.out.println();
        }
    }
}