Question

which of the following is an incorrect array declaration?
a) int[] a = new int[20];
b)int [] a;
c)int [] [] a = new int[20];
d)int [] [] a = { {1,2,4},{1,2,4}};

Answer 1

Answer:

a is correct .

I think so

Answer 2

Array declaration:

The incorrect is "Option C"

Explanation:

• As we know that Array is a collection of homogeneous elements, and it is divided into two parts that are 1D and 2D. In the given question "Option c" is incorrect because there is a 2D array "a" is declared, and the size of the array is 20, that's is wrong because the 2D array is a collection of row and column, other choices were correct, which can be described as follows:
• In option a, A 1D array "a" is declared, that's size is 20.
• In option b, An array "a" is declared.
• In option d, the 2D array "a" is initialized with elements.

Learn more:

• Array declaration: https://brainly.in/question/9028012