Java nested for loop incrementing second loop by first for loop?

Question

Hi I'm learning Java and found a solution that is pretty neat, but I'm interested in a particular line of code in the 2nd for loop. I wouldn't know who to ask because I'm not in school for Java yet so I'm asking here, but anyway:

for (int i = 0; i < BRICKS_IN_BASE + (-h); i++)

Does this mean that 'repeat i for this number of times' is added' to 'h minus 1'? More specifically what is (-h)? Is it a pre-increment? And why is it in parenthesis?

It's again used in declaring the variable x.

import acm.graphics.*;
import acm.program.*;
import java.awt.*;

public class Pyramid extends GraphicsProgram {

    /** Width of each brick in pixels */
    private static final int BRICK_WIDTH = 30;

    /** Width of each brick in pixels */
    private static final int BRICK_HEIGHT = 12;

    /** Number of bricks in the base of the pyramid */
    private static final int BRICKS_IN_BASE = 15;

    public void run() {
        for (int h = 0; h < BRICKS_IN_BASE; h++)
        {
            for (int i = 0; i < BRICKS_IN_BASE + (-h); i++)
            {
                int k = i * BRICK_WIDTH;
                int m = h * BRICK_HEIGHT;
                int x = ((getWidth() - ((BRICKS_IN_BASE + (-h)) * BRICK_WIDTH)) / 2) + k;
                int y = getHeight() - ((BRICK_HEIGHT + 1) + m);
                GRect brick = new GRect (x, y, BRICK_WIDTH, BRICK_HEIGHT);
                add(brick);
            }
        }               
    }
}

Answer 1

for (int i = 0; i < BRICKS_IN_BASE + (-h); i++)

is really (the (-h) is simply -1*h)

for (int i = 0; i < (BRICKS_IN_BASE  - h); i++)

due to operator precedence