Java program to print following number pattern

                       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  

Answer :

public class Pattern5 {

 public static void main(String[] args) {
  
  for(int i=1;i<7;i++)
  {
    for(int s=7-i;s>0;s--)
    {
      System.out.print("  ");
    }
   for(int k=1;k<=i;k++)
   {
    System.out.print(k+"  ");
   }

   int d=i-1;

   while(0<(d))
   {
     System.out.print(d+"  ");
     d--;
   }
   System.out.println();
  }

 }

}