i've tried doing a triangle of pyramid with this.

import java.util.*;
public class test {


public static void main(String[] args) {
Scanner k = new Scanner(System.in);
System.out.print("Input row : ");
int n = k.nextInt();
for (int i = 1; i <= n; i++) { 
for (int j = n; j > i; j--) { 
System.out.print(" ");
}
for (int j = i; j > 1; j--) {
System.out.print("*");
}

//
for (int j = 1; j <= i; j++) { // my teacher don't want this line.
System.out.print("*");  // my teacher don't want this line.
}
// But teacher want my output like.
----*
---***
--*****
-*******
*********
//

System.out.println();

}
}
}