C++ Arrays

What is the primary advantage of using an array in C++ programming?

What is the syntax to declare an array in C++?

If an array has 10 elements, what is the index of the last element?

What is the index of the first element in an array in C++?

What happens to the size and type of an array in C++ after its declaration?

How are the addresses of elements in an array stored in C++?

What is the reason behind increasing the size of each element by 4 in an array?

What happens if an array has a size n but we store less than n number of elements?

How can we declare and initialize an array in C++?

What happens when we try to access an array element that is out of its bounds?

How can we insert an element at the ith position in an array in C++?

What is the purpose of the cin object in C++?

C++ Arrays

An array in C++ is a variable that can store multiple values of the same type.
Arrays are useful when dealing with a large amount of data of the same type, such as storing grades of students in a class.

Declaring Arrays

The general syntax for declaring an array in C++ is: dataType arrayName[arraySize];
For example: int x[6]; declares an array of 6 integers.

Accessing Array Elements

Each element in an array is associated with a number, known as an array index, starting from 0.
Elements of an array can be accessed using their indices, for example: array[index];
The array indices start with 0, and the last element is stored at index n-1, where n is the size of the array.
Elements of an array have consecutive addresses, with each element's address incremented by the size of the data type.

Array Initialization

In C++, arrays can be initialized during declaration, for example: int x[] = {19, 10, 8, 17, 9, 15};
The compiler automatically computes the size of the array if it's not specified.

Array with Empty Members

If an array has a size n, but fewer than n elements are initialized, the remaining elements will be assigned default values (usually 0).
For example: int x[6] = {19, 10, 8}; will assign 0 to the remaining 3 elements.

Inserting and Printing Array Elements

Array elements can be inserted or updated using their indices, for example: mark[3] = 9;
Array elements can be printed using cout, for example: cout << mark[0];

Learn to work with arrays in C++ programming, including declaration, initialization, and accessing array elements with examples. Understand how arrays can store multiple values of the same type, making it efficient for storing large amounts of data.