For example a 2-D array to a 3-D array.Is it possible using array ? If not, what class should I use to achieve this ?
EDIT : The array dimension is user defined at runtime.
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5Could you give some more details?Tesseract– Tesseract2015-05-02 16:43:50 +00:00Commented May 2, 2015 at 16:43
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1provide some more details with tried code .Harshana Samaranayake– Harshana Samaranayake2015-05-02 16:45:01 +00:00Commented May 2, 2015 at 16:45
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The array is declared as a 2-D array and I want to change the array to a 3-D array.Shafiq Aiman– Shafiq Aiman2015-05-02 16:47:29 +00:00Commented May 2, 2015 at 16:47
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Can you give example of 2-D array and result 3-D array?Pshemo– Pshemo2015-05-02 16:48:36 +00:00Commented May 2, 2015 at 16:48
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The array dimension is user-defined.Shafiq Aiman– Shafiq Aiman2015-05-02 16:49:56 +00:00Commented May 2, 2015 at 16:49
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2 Answers
try this,
int[][][] convertinto3d(int[][] d2, int size) {
int[][][] dimention = new int[size][d2.length][d2[0].length];
for(int a=0; a< size; a++ ) {
for(int i=0; i<d2.length; i++ ) {
dimention[a][i] = d2[i];
}
}
return dimention;
}
Comments
You can't change length or dimension of an array, but you can create a new array with different number of dimensions and copy the content of the old array into it.
Small example
int[] initialArray = new int[]{1,2,3};
System.out.println(initialArray[0] + " " + initialArray[1] + " "+ initialArray[2]);
int[][] newArray = new int[initialArray.length][3];
for (int i=0;i<initialArray.length;i++){
newArray[i][0] = initialArray[i];
}
System.out.println(newArray[0][0] + " " + newArray[1][0] + " "+ newArray[2][0]);
2 Comments
Shafiq Aiman
What about using another class like ArrayList ?
Nico Müller
The question is what you want to achieve? Is performance important or do you just want to store values?
