3D 数组赋值

Question

Can I use the following format to simplify assigning values in java to a 3D array if possible then how?

    int [][][]array = new int[3][][];

    array[0] = new int [4][5];
    array[1] = new int [5][5];
    array[2] = new int [3][5];


    array[0] = {{1,2,3,4,5} , {1,2,3,4,5} , {1,2,3,4,5} , {1,2,3,4,5}};
    array[1] = {{1,2,3,4,5} , {1,2,3,4,5} , {1,2,3,4,5} , {1,2,3,4,5}, {1,2,3,4,5}};
    array[2] = {{1,2,3,4,5} , {1,2,3,4,5} , {1,2,3,4,5}};

Answer 1

The simplest and cleanest way to assign this type of data -- put the data into a file, here a text file would be adequate, and then read it in using nested for loops. This avoids hard-coding the data, and makes it easy to change the data without having to change the code.

Answer 2

You can do it like this:

int[][][] array = {
        {{1,2,3,4,5} , {1,2,3,4,5} , {1,2,3,4,5} , {1,2,3,4,5}},
        {{1,2,3,4,5} , {1,2,3,4,5} , {1,2,3,4,5} , {1,2,3,4,5}, {1,2,3,4,5}},
        {{1,2,3,4,5} , {1,2,3,4,5} , {1,2,3,4,5}},
};

Another alternative:

int[][] array1 = {{1,2,3,4,5} , {1,2,3,4,5} , {1,2,3,4,5} , {1,2,3,4,5}};
int[][] array2 = {{1,2,3,4,5} , {1,2,3,4,5} , {1,2,3,4,5} , {1,2,3,4,5}, {1,2,3,4,5}};
int[][] array3 = {{1,2,3,4,5} , {1,2,3,4,5} , {1,2,3,4,5}};
int[][][] array = {array1, array2, array3};

The initializer expression {...} can only be used at declaration time.