Which two are valid declarations of a two-dimensional array?

The correct answer is A. int[][] array2D; D. int[] array2D[];. int[][] array2D; is the standard convention to declare a 2-dimensional integer array. int[] array2D[]; works as well, but it is not recommended. Incorrect answers: int[2][2] array2D; The size of the array cannot be defined this way. int array2D[]; is good definition of a one-dime

Creating and Using Arrays

Question

Options

Aint[][] array2D;
Bint[2][2] array2D;
Cint array2D[];
Dint[] array2D[];
Eint[][] array2D[];

How the community answered

(16 responses)

A
88% (14)
C
6% (1)
E
6% (1)

Explanation

int[][] array2D; is the standard convention to declare a 2-dimensional integer array. int[] array2D[]; works as well, but it is not recommended. Incorrect answers: int[2][2] array2D; The size of the array cannot be defined this way. int array2D[]; is good definition of a one-dimensional array. int[] []array2D[];is good definition of a three-dimensional array.

Topics

#array declaration#multidimensional arrays#array syntax

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