Java - Split an array of arrays into multiple arrays

Question

Hello fellow programmers, I am having trouble with this logic, what I want to do is split an array of arrays into multiple arrays in an Android Studio application (java).

I have an array like this:

int[][] goal = { {1, 2, 3}, {4, 5, 6}, {0, 7, 8} };

And I want it to look like this:

int[] zero = {1,2,3};
int[] one = {4,5,6};
int[] two = {0,7,8};

But I am having trouble cause i though i could set the array like this

int[] zero = goal [1][];
int[] one = goal [2][];
int[] two = goal [3][];

And I cant, so i am getting here to know if any of you guys could me with this.

Thanks.

int[] zero = goal[0], one = goal[1], two = goal[2];

shmosel
– shmosel

2018-01-23 20:12:17 +00:00
Commented Jan 23, 2018 at 20:12 — shmosel
– shmosel, Commented Jan 23, 2018 at 20:12

lealceldeiro · Accepted Answer · 2018-01-23 20:13:54Z

5

Following your logic...

Change this:

int[] zero = goal [1][];
int[] one = goal [2][];
int[] two = goal [3][];

to this:

int[] zero = goal [0];
int[] one = goal [1];
int[] two = goal [2];

answered Jan 23, 2018 at 20:13

lealceldeiro

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Comments

Rishav Agarwal · Accepted Answer · 2018-01-23 20:15:32Z

3

You should write-

int[] zero = goal[0];
int[] one = goal[1];
int[] two = goal[2];

Hope this helps!

answered Jan 23, 2018 at 20:15

Rishav Agarwal

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Comments

SindreKjr · Accepted Answer · 2018-01-23 20:15:49Z

2

Your thinking is correct, but your implementation is wrong. Try:

int[] zero = goal[0];

answered Jan 23, 2018 at 20:15

SindreKjr

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Comments

Brayan Armando Yaquian Gonzale · Accepted Answer · 2018-01-23 20:23:07Z

1

You can get any value of individual arrays and goal can be of any dimension.

int[][] goal =  {{1, 2, 3}, {4, 5, 6}, {0, 7, 8} };

        for(int i=0; i<goal.length; i++){
            int [] actualArray = goal[i];
            for(int j =0; j< actualArray.length; j++){
                // you can get each value of individual array with the following code: actualArray[j];
            }
        }

answered Jan 23, 2018 at 20:23

Brayan Armando Yaquian Gonzale

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