Java, How to split array multidimensional by row and column

Question

i have problem how to split my array to make zone

my array is :

            1,   2,  3,  4,  5,  6
            7,   8,  9, 10, 11, 12
            13, 14, 15, 16, 17, 18
            19, 20, 21, 22, 23, 24
            25, 26, 27, 28, 29, 30
            31, 32, 33, 34, 35, 36

if i set row=3 and column 3, result must:

 1  2  3
 7  8  9
13 14 15

 4  5  6
10 11 12
16 17 18

19  20  21
25  26  27
31  32  33

22 23 24
28 29 30
34 35 36

my problem is, only get

 1  2  3
 7  8  9
13 14 15

this is my source code

    int dataArray[][] = new int[][]{
        {1, 2, 3, 4, 5, 6},
        {7, 8, 9, 10, 11, 12},
        {13, 14, 15, 16, 17, 18},
        {19, 20, 21, 22, 23, 24},
        {25, 26, 27, 28, 29, 30},
        {31, 32, 33, 34, 35, 36}
    };


    int row = 3;
    int column = 3;

    int zone = 4;
    int copyArray[][] = new int[row][column];


    int countJ = 0, countK = 0;

    for (int j = 0; j < row; j++) {
        for (int k = 0; k < column; k++) {
            copyArray[countJ][countK] = dataArray[j][k];
            copyArray[countK][countJ] = dataArray[k][j];
            countK++;
        }
        countK = 0;
        countJ++;
    }

    for (int i = 0; i < zone; i++) {
        System.out.println(Arrays.deepToString(copyArray));
    }

}

Thank you Advance

Doesn't your source code give your the correct result? In case I gives wrong result what's the problem. Please explain your problem. — Razib, Mar 25 '15 at 07:49
i dont know how to get the all result, just 1 zone i can.. another zone still failed — Jhohannes Purba, Mar 25 '15 at 07:51
Your algorythm is totally wrong. This problem is little bit more complex than you thought. take a look at this [sub Matrix](http://stackoverflow.com/questions/9885147/finding-sub-matrix-of-a-given-matrix) — Milkmaid, Mar 25 '15 at 08:01

score 0 · Answer 1 · answered Mar 25 '15 at 14:20

the case had been solve..

  int dataArray[][] = new int[][]{
        {1, 2, 3, 4, 5, 6},
        {7, 8, 9, 10, 11, 12},
        {13, 14, 15, 16, 17, 18},
        {19, 20, 21, 22, 23, 24},
        {25, 26, 27, 28, 29, 30},
        {31, 32, 33, 34, 35, 36}};

    int baris = 3;
    int kolom = 3;
    int lebarZona = 2;
    int tinggiZona = 2;
    int counterTinggi = 0;
    ArrayList<int[][]> daftarZona = new ArrayList<int[][]>();
    counterTinggi = 0;
    int counterBaris = 0;
    int counterKolom = 0;

    for (int i = 0; i < tinggiZona; i++) {
        for (int j = 0; j < lebarZona; j++) {
            int copyArray[][] = new int[baris][kolom];

            for (int k = 0; k < baris; k++) {
                System.arraycopy(dataArray[counterBaris], counterKolom, copyArray[k], 0, kolom);
                counterBaris++;
            }

            daftarZona.add(copyArray);
        }
        counterBaris = 0;
        counterKolom += kolom;
    }

    for (int i = 0; i < daftarZona.size(); i++) {
        System.out.println(Arrays.deepToString(daftarZona.get(i)));
    }



    /*
     * Result : 
     * [[1, 2, 3], [7, 8, 9], [13, 14, 15]]
     *[[19, 20, 21], [25, 26, 27], [31, 32, 33]]
     *[[4, 5, 6], [10, 11, 12], [16, 17, 18]]
     *[[22, 23, 24], [28, 29, 30], [34, 35, 36]]
     */

thank you all

Java, How to split array multidimensional by row and column

1 Answers1