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Name : Abdallah atef
Id : 42020135
Group: 5
C++ Arrays
Arrays are used to store multiple values in a single variable, instead of declaring
separate variables for each value.
To declare an array, define the variable type, specify the name of the array
followed by square brackets and specify the number of elements it should
store:
string cars[4];
We have now declared a variable that holds an array of four strings. To insert
values to it, we can use an array literal - place the values in a comma-separated
list, inside curly braces:
string cars[4] = {"Volvo", "BMW", "Ford", "Mazda"};
To create an array of three integers, you could write:
int myNum[3] = {10, 20, 30};
Access the Elements of an Array
You access an array element by referring to the index number.
This statement accesses the value of the first element in cars:
Example
string cars[4] = {"Volvo", "BMW", "Ford", "Mazda"};
cout << cars[0];
// Outputs Volvo
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Name : Abdallah atef
Id : 42020135
Group: 5
Change an Array Element
To change the value of a specific element, refer to the index number:
Example
cars[0] = "Opel";
Example
string cars[4] = {"Volvo", "BMW", "Ford", "Mazda"};
cars[0] = "Opel";
cout << cars[0];
C++ Exercises
Test Yourself Exercises
Exercise:
Create an array of type string called cars.
[4] = {"Volvo", "BMW", "Ford", "Mazda"};
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