Plz tell me This java code for this pattern

Question

54321
4321
321
21
1
21
321
4321
54321

https://code.sololearn.com/cLS67DjksSRb/?ref=app

Answer 1

sp--;
// for(j=2;j<=i;j++)
for(j=i; j>0; j--)
System.out.print( j );
System.out.println();