Arrays are commonly used to store multiple values. It's one of the basic data structures. We can use it to model a list/array/collection of items. Say, an array of cellphone numbers, an array of first names, etc.
To declare an array in C++, we need to specify 3 things, using the square bracket notation.
For example,
float scores[5];
+ C++ Arrays
Basics
Arrays are commonly used to store multiple values. It's one of the basic data structures. We can use it to model a list/array/collection of items. Say, an array of cellphone numbers, an array of first names, etc.
To declare an array in C++, we need to specify 3 things, using the square bracket notation.
- Data Type
- Size
- Name of the array
For example,
To initialize values in the array during declaration, we can use the curly bracket notation.
Or simply omitting the size, the compiler is smart enough to count the number of values to be inserted.
We can access each of the values in an array by its index, using the square bracket notation. C++ is zero-indexed, meaning the first value in the array has an index of 0.
For example, to retrieve the second scores from the scores array, we can simply
Last update: 2022-12-03
Created: 2022-10-20
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