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  • Hi techies ,

    I am new to java and trying to understand arrays but was stuck in concepts , Please any one can explain the following is the code :

    class ThreeDMatrix
    {

    public static void main(String args[])
    {
    int threeD[][][] = new int[3][4][5];
    int i, j, k;
    for(i=0; i<3; i++)
    for(j=0; j<4; j++)
    for(k=0; k<5; k++)
    threeD[j][k] = i * j * k;
    for(i=0; i<3; i++)
    {
    for(j=0; j<4; j++)
    {
    for(k=0; k<5; k++)
    System.out.print(threeD[j][k] + " ");
    System.out.println();
    }
    System.out.println();
    }
    }
    }

    Output of this program is :

    0 0 0 0 0
    0 0 0 0 0
    0 0 0 0 0
    0 0 0 0 0

    I would be thankful for the help ,Regards King99 !!
    Replies
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Replies

  • Varsha0802

    Member • Oct 12, 2011

    The program's full output is:

    0 0 0 0 0
    0 0 0 0 0
    0 0 0 0 0
    0 0 0 0 0

    0 0 0 0 0
    0 1 2 3 4
    0 2 4 6 8
    0 3 6 9 12

    0 0 0 0 0
    0 2 4 6 8
    0 4 8 12 16
    0 6 12 18 24

    The output is self explanatory, As the array indexes start by 0, the first matrix contain all zeros because i's value will be zero for it.
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  • king99

    Member • Oct 12, 2011

    Hi Varsha Thanks for reply , Please is it possible for you to give line wise explanation , It would be helpful !!
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  • Manish Goyal

    Member • Oct 12, 2011

    It means 3 blocks , 4 rows and 5 columns.

    For 1 block, it will create 4 rows and for one row it will create 5 columns
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