Question

Declare a 2d array called mat using an initializer list of the following integers 3, 4, 5 and 6, 7, 8?

Answer 1

To declare a 2D array called mat with an initializer list, one should specify the element type and initialize it using nested braces with row arrays.

Step-by-step explanation:

To declare a 2D array called mat using an initializer list with the provided integers, you will need to specify the type of the array elements, the name of the array, and then use braces to enclose the initializer list. In this case, the array will contain integers and it will be initialized with two sets of values representing the first and second row respectively.

Here is how you can declare and initialize the 2D array in many programming languages, such as C, C++, or Java:

int mat[][] = {
{3, 4, 5},
{6, 7, 8}
};

In this declaration, int specifies that the array contains integers. The double braces indicate that this is an array of arrays, with each nested array corresponding to a row in the two-dimensional array. The numbers within each nested array are the elements in each row. Thus, mat[0] will refer to the array {3, 4, 5}, and mat[1] will refer to the array {6, 7, 8}