?? e121. getting the length and dimensions of an array object.txt
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The length of an array is the number of elements of the array. The dimensions of an array type of int[][][] is three.
Object o = new int[1][2][3];
// Get length
int len = Array.getLength(o); // 1
// Get dimension
int dim = getDim(o); // 3
// If `array' is an array object returns its dimensions; otherwise returns 0
public static int getDim(Object array) {
int dim = 0;
Class cls = array.getClass();
while (cls.isArray()) {
dim++;
cls = cls.getComponentType();
}
return dim;
}
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