Another "while loop problem": anyone, help me please? :-)

[aprilmae36]

Nice day to all... Here I am again, having another problem with loops... lol... Can you please help me make a while loop program that the output will be like this:

1
121
12321
1234321
123454321

:-)

Thank you so much....

[r035198x]

Nice day to all... Here I am again, having another problem with loops... lol... Can you please help me make a while loop program that the output will be like this:

1

121
12321
1234321
123454321

:-)

Thank you so much....

Probably half a dozen ways of doing this

 
class aprilmae36 {
     public static void main(String[] args) {
   int n = 4;
   int i = 1;
   int row = 0;
   boolean up = true;
         while(i < 6) {
    for(int k = 0; k < n;k++) {
     System.out.print(" ");
    }
          for(int l = 1; l < i; l++) {
     System.out.print(""+l);
    }
    for(int l = i; l > 0; l--) {
       System.out.print(""+l);
    }
    i++;
    n--;
    System.out.println();
   }
 }
}