May be I am using 3D arrays first time. I just try to follow the 1D and 2D syntax to declare 3D, but compiler says Type mismatch. Can anyone tell me the reason behind this?
Integer[] _1D = new Integer[]{2,4,6,5,6};
Integer[][] _2D = new Integer[][]{{2,3},{4,6},{5,6}};
Integer[][][] _3D = new Integer[][][]{{1,2,3},{4,5,6},{7,8,9},{2,4,5}};
Thanks,
You're just creating a 2-d array again, but with 4 rows and 3 columns. This is the right way to create a 3-d array.
Integer[][][] _3D = new Integer[][][]{{{1,2,3},{4,5,6},{7,8,9},{2,4,5}},{{1,2,3},{4,5,6},{7,8,9},{2,4,5}}}; // it should be like this.
Your 3d array is actually a 2d array. Add a brace pair to make it 3d.
Integer[][][] _3D = new Integer[][][]{{ {1,2,3},{4,5,6},{7,8,9} }};
{{1,2,3},{4,5,6},{7,8,9},{2,4,5}};
This is just a 2D array. An example of 3D array is:
Integer[][][] _3D = new Integer[][][]{{{1,2,3},{4,5,6}},{{7,8,9},{2,4,5}}};
A 3D array is an array that contains arrays that them contain arrays, so you can see with that premise that the first array only is an array that has arrays with numbers.
Adding on to @R.J 's answer, it's easier to see the three dimension like this
Integer[][][] _3D =
new Integer[][][]{ // dimension 1
{ // dimension 2
{1,2,3}, // dimension 3
{4,5,6},
{7,8,9},
{2,4,5}
},
{ // dimension 2
{1,2,3}, // dimension 3
{4,5,6},
{7,8,9},
{2,4,5}
}
}; // right way
Size of array [2][4][3]
Max indices [1][3][2]
