Optimize solution of pattern program 2

import java.io.Console;
class Loop3
{
 public static void main(String args[])
 {
  int n;
  String s="";
  Console con=System.console();
  System.out.print("Enter your Number : ");
  n=Integer.parseInt(con.readLine());

  for(int i=1;i<=n;i++)
  {
   for(int j=1;j<=n;j++)
   {
    if(i<=n-j)
    {
     System.out.print(" ");
    }

   }
   if(i>=1)
   {
    s+="*";
    System.out.print(s); 
   }
   System.out.println();
  }
 }
}