Printing a pyramid pattern of digits #6

//This java program accepts a number of user
//which tells the program that how many lines
//of the pattern will be printed and then prints
//the pattern of the given number of lines.
/*Sample Input : 6
Sample Output :
               1
            1 2 1
         1 2 3 2 1
      1 2 3 4 3 2 1
   1 2 3 4 5 4 3 2 1
1 2 3 4 5 6 5 4 3 2 1  */

import java.util.*;
class pattern
{
public static void main()
{
    Scanner sc=new Scanner(System.in);
    System.out.print("Enter the number of lines you want : ");
    int n=sc.nextInt();
    int i,j,k;
    for(i=1;i<=n;i++)
    {
        for(k=i;k<n;k++)
        {
            System.out.print("  ");
        }
        for(j=1;j<=i;j++)
        {
            System.out.print(j+" ");
        }
        for(j=i-1;j>=1;j--)
        {
            System.out.print(j+" ");
        }
        System.out.println();
    }
}
}

//Author : Mayank Rajoria