How did this work?

Question

I just started learning java for about a week and I was baffled by this one, can anybody explain to me how the output of solo learn's example is a triangle? Thanks in advance.
https://code.sololearn.com/c3I8ORHVAVHQ/?ref=app

Answer 1

This results from the nested loop. A nested loop is a loop inside a loop. The inner loop draws the stars per line. The outer loop increases the number of stars per line and prints a linefeed after each line.

Answer 2

Thanks