An array is a variable that can store multiple values. For example, if you want to store 100 integers, you can create an array for it.
How to declare an array?
Here, we declared an array, mark, of floating-point type. And its size is 5. Meaning, it can hold 5 floating-point values.
It’s important to note that the size and type of an array cannot be changed once it is declared.
Access Array Elements
You can access elements of an array by indices.
Suppose you declared an array mark as above. The first element is mark, the second element is mark and so on.
- Arrays have 0 as the first index, not 1. In this example, mark is the first element.
- If the size of an array is n, to access the last element, the
n-1index is used. In this example, mark
- Suppose the starting address of
markis 2120d. Then, the address of the
markwill be 2124d. Similarly, the address of
markwill be 2128d and so on.
This is because the size of a
floatis 4 bytes.