Final answer:
To declare an array named 'a' of length 10 containing integers, the syntax varies depending on the programming language, but it involves specifying the type, name, and size or initial elements of the array in the declaration.
Step-by-step explanation:
To declare an array named a of length 10 containing integers, you would specify the array's type, name, and size in your code. Here's how you can do this in several different programming languages:
Java
In Java, you would declare the array as follows:
int[] a = new int[10];
This line creates an integer array with 10 elements, where all of them are initialized to 0 by default.
C++
In C++, the declaration would look like this:
int a[10];
This declares an array of 10 integers. Note that in C++, the array elements are not initialized and may contain garbage values.
Python
Python uses lists that can function similarly to arrays:
a = [0] * 10
This creates a list with 10 elements, all initialized to 0. Python lists are dynamic and can grow or shrink in size.
JavaScript
For JavaScript, you can declare an array like so:
var a = new Array(10);
or simply
var a = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
Both will give you an array of 10 integers initialized to 0.
Remember, the syntax for array declaration varies between programming languages, but they generally involve specifying the array's type (if statically typed), the array's name, and the size or initial elements.