how to print the elements of a array using range based for loop

Answer:

To print the elements of an array using a range-based for loop in C++, you can follow these steps:

Declare and initialize the array: Start by declaring an array and initializing it with some values. For example, let's create an array of integers with 5 elements and initialize it with some values:

int arr[] = {1, 2, 3, 4, 5};

Use the range-based for loop: The range-based for loop in C++ allows you to iterate over the elements of an array without having to worry about the size or indices. It simplifies the process of accessing each element. The syntax for the range-based for loop is as follows:

for (element_type element : array_name) {
    // Code to be executed for each element
}

In this case, the element_type should match the type of the elements in your array, and array_name is the name of the array you want to loop over.

Print each element: Inside the body of the loop, you can print each element using the cout object from the iostream library. The cout object is used for standard output in C++. Here's how you can print each element of the array using the range-based for loop:

for (int element : arr) {
    std::cout << element << " ";
}

In this example, each element of the array arr will be sequentially assigned to the variable element, and then it will be printed using std::cout. The output will be separated by a space.

End the line: After printing all the elements, you might want to end the line to separate the output from the rest of the program. You can achieve this by adding an extra std::cout statement after the loop:

std::cout << std::endl;

This will insert a new line character and move the cursor to the beginning of the next line.

Putting it all together, the complete code to print the elements of an array using a range-based for loop would look like this:

#include <iostream>

int main() {
    int arr[] = {1, 2, 3, 4, 5};

    for (int element : arr) {
        std::cout << element << " ";
    }

    std::cout << std::endl;

    return 0;
}

When you run this code, it will output:

1 2 3 4 5

This is the result of printing each element of the array using the range-based for loop.