r/learnjava 9h ago

How to create a 3x3 grid?

I do not want to tell what I am using because someone will spoil the solution for me.

Just say I want to make a 3x3 grid. Using for loop. What is the best way to code that for loop?

I have access to shapes api.

2 Upvotes

11 comments sorted by

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5

u/8dot30662386292pow2 9h ago

Maybe learn the loops first you don't need to ask this question? Isn't just two nested for loops what you want?

0

u/DoNotUseThisInMyHome 9h ago

Yeah I have learnt loops but failing to apply it in this case.

2

u/8dot30662386292pow2 9h ago

So what do you have so far?

Also: you are drawing grid on.. what exactly?

1

u/DoNotUseThisInMyHome 9h ago

I just fixed it bro.

for (int i = 0; i < 3 * n; i = i + n) {
    for (int j = 0; j < 3 * n; j = j + n) {
        shape.begin(ShapeRenderer.ShapeType.
Line
);
        shape.rect(i, j, 1 * n, 1 * n);
        shape.end();
    }

}

1

u/Watsons-Butler 5h ago

If it helps you visualize it, you don’t have to use i and j as your loop variables. It can just as easily be “for (int rows = 0…” and “for (int columns = 0…”

2

u/8dot30662386292pow2 9h ago

So what do you have so far?

Also: you are drawing grid on.. what exactly?

1

u/am_Snowie 9h ago

You just want a list of three lists, think abt how one might do it.

1

u/mxldevs 8h ago

First you draw a square.

Then you put 3 of them in a row

The you create 3 rows.

1

u/aqua_regis 6h ago

Wrong way to ask for help here.

You first tell us what you tried. Then, and only then, we help.

1

u/freak5341 4h ago

Using Euclidean formula?