Printing a dual pyramid pattern of '*' #1

//This Java program accepts a number from the
//user and prints a dual pyramid using 'a' of
//the number of layers entered by the user
//Sample input : 4
//Sample output :     *
//                           * *
//                          * * *
//                         * * * *
//                          * * *
//                           * *
//                            *

import java.util.*;
class pattern
{
public static void main(String Args[])
{
int c,k,n,x,l;
System.out.println("Enter a number");
Scanner ob=new Scanner(System.in);
x=ob.nextInt();
l=x;
for(n=1;n<=x;n++)
{
for(c=l;c>1;c--)
{
System.out.print(" ");
}
for(k=1;k<=n;k++)
{
System.out.print("* ");
}
System.out.println();
l--;
}

int y;
for(n=x;n>1;n--)
{
for(y=n;y<=x;y++)
{
System.out.print(" ");
}
for(k=1;k<n;k++)
{
System.out.print("* ");
}
System.out.println();
}
}
}
//Author : Mayank Rajoria