create multiple brick in Java

Question

This is my code so far for creating bricks, and it works:

bricks = new Brick[5];     
this.createBricks(); 

private void createBricks(){
    for (int i = 0; i < 5; i++) {
         Brick brick = new Brick(0,0, Color.RED);  
         bricks[i] = brick;
    }
}

With this code I´m able to get one brick, but I´m quite sure that all my bricks now is on the same position. So I need help with how I write the positions(in my current code: 0,0) so that the bricks is displayed next to each other, in rows and columns.

Update:

Brick[][] bricks = new Brick[5][5];     
this.createBricks(); 

private void createBricks(){
    for (int i = 0; i < 5; i++) {
        for (int j = 0; j < 5; j++) {
            Brick brick = new Brick(i,j, Color.RED);  
            bricks[i][j] = brick;
        }
    }
}

Well what do you want the position to be instead of 0, 0? Perhaps `i, 0`? (So you have {0, 0}, {1, 0}, {2, 0}, {3, 0}, {4, 0}...) — Jon Skeet, Feb 05 '16 at 11:20

hpopiolkiewicz · Answer 1 · 2016-02-05T12:26:23.540

1

You can pass i to brick constructor:

private void createBricks(){
    for (int i = 0; i < 5; i++) {
         Brick brick = new Brick(i,0, Color.RED);  
         bricks[i] = brick;
    }
}

It will look like this:

OOOOO
-----
-----
-----
-----

or:

private void createBricks(){
    for (int i = 0; i < 5; i++) {
         Brick brick = new Brick(0,i, Color.RED);  
         bricks[i] = brick;
    }
}

It will look like this:

O----
O----
O----
O----
O----

or:

private void createBricks(){
    for (int i = 0; i < 5; i++) {
         Brick brick = new Brick(i,i, Color.RED);  
         bricks[i] = brick;
    }
}

It will look like this:

O----
-O---
--O--
---O-
----O

Assuming that first two constructor arguments are x and y axis of Brick matrix. It depends on what your Brick constructor looks like.

EDIT1: Answering to your question from comment:

Brick[][] bricks = new Brick[5][5];     
this.createBricks(); 

private void createBricks(){
    for (int i = 0; i < 5; i++) {
        for (int j = 0; j < 5; j++) {
             Brick brick = new Brick(i,j, Color.RED);  
             bricks[i][j] = brick;
        }
    }
}

It will look like this:

OOOOO
OOOOO
OOOOO
OOOOO
OOOOO

edited Feb 05 '16 at 12:26

answered Feb 05 '16 at 11:22

hpopiolkiewicz

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Thanks! It works in x - direction and y-direction separately, but how do I write if I want bricks in both directions in the same loop? – Anna Feb 05 '16 at 11:46
Use two for loops. One loop in another. Look at "EDIT1" in my answer. – hpopiolkiewicz Feb 05 '16 at 11:48
When I try this I get an error in the last line bricks[i][j] = brick; It says "Array required, but brick found" – Anna Feb 05 '16 at 11:57
I think you left your Brick array declared as an array. It should be matrix just like in my example. – hpopiolkiewicz Feb 05 '16 at 11:58
I updated my question, I think I declared it as a matrix, still doesn't work tho – Anna Feb 05 '16 at 12:04
Could you paste all code you are using to run this Brick thing? – hpopiolkiewicz Feb 05 '16 at 12:08

create multiple brick in Java

1 Answers1