C++ Arrays

In C++, arrays allow multiple values to be stored within a single variable, making data management more efficient.

Declaring an Array

To define an array, specify the data type, followed by the name and size in square brackets:

string bikeBrands[4];

string bikeBrands[4];

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This declares an array named bikeBrands that can hold four elements.

To assign values at declaration, use curly braces {} with a comma-separated list:

string bikeBrands[4] = {"Yamaha", "Ducati", "Kawasaki", "Honda"};

string bikeBrands[4] = {"Yamaha", "Ducati", "Kawasaki", "Honda"};

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Similarly, an integer array can store numerical values:

int engineSizes[3] = {600, 1000, 1300};

int engineSizes[3] = {600, 1000, 1300};

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Accessing Elements in an Array

Each array element has an index, starting at 0. Access elements by using square brackets:

string bikeBrands[4] = {"Yamaha", "Ducati", "Kawasaki", "Honda"};
cout << bikeBrands[0];  

string bikeBrands[4] = {"Yamaha", "Ducati", "Kawasaki", "Honda"};

cout << bikeBrands[0];  

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Output:

Yamaha

Yamaha

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Note: Indexing starts at 0, meaning [0] refers to the first element, [1] to the second, and so on.

Modifying an Array Element

Once an array is initialized, individual elements can be updated by referencing their index.

Example: Changing an Array Value

#include <iostream>
using namespace std;

int main() {
    string bikeBrands[4] = {"Yamaha", "Ducati", "Kawasaki", "Honda"};

    // Modify the first element
    bikeBrands[0] = "Harley-Davidson";
    cout << bikeBrands[0];  // Now outputs Harley-Davidson instead of Yamaha

    return 0;
}

#include <iostream>

using namespace std;

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int main() {

    string bikeBrands[4] = {"Yamaha", "Ducati", "Kawasaki", "Honda"};

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    // Modify the first element

    bikeBrands[0] = "Harley-Davidson";

    cout << bikeBrands[0];  // Now outputs Harley-Davidson instead of Yamaha

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    return 0;

}

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Output:

Harley-Davidson

Harley-Davidson

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