How to get Last Item in a Vector in C++ - Step by Step Examples

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How to get Last Item in a Vector in C++ ?

Answer

To get the last item in a vector in C++, you can use the back method provided by the std::vector class.

✐ Examples

1 Get Last Item in a Vector of Integers

In this example,

First, we include the necessary header file and to use the std::vector class and input/output stream.
We create a vector named vec with a series of integer values using the std::vector class.
We then use the back method on the vector vec to get a reference to the last element of the vector.
The back method returns a reference to the last element in the vector, which we store in a variable named last_item.
Finally, we print the last item to the console using std::cout.

C++ Program

#include <vector>
#include <iostream>

int main() {
    std::vector<int> vec = {10, 20, 30, 40, 50};
    int last_item = vec.back();
    std::cout << "The last item is: " << last_item << std::endl;
    return 0;
}

Output

The last item is: 50

2 Get Last Item in a Vector of Strings

In this example,

First, we include the necessary header file , , and to use the std::vector and std::string classes and input/output stream.
We create a vector named vec with a series of string values using the std::vector class.
We then use the back method on the vector vec to get a reference to the last element of the vector.
The back method returns a reference to the last element in the vector, which we store in a variable named last_item.
Finally, we print the last item to the console using std::cout.

C++ Program

#include <vector>
#include <iostream>
#include <string>

int main() {
    std::vector<std::string> vec = {"apple", "banana", "cherry", "date", "elderberry"};
    std::string last_item = vec.back();
    std::cout << "The last item is: " << last_item << std::endl;
    return 0;
}

Output

The last item is: elderberry

Summary

In this tutorial, we learned How to get Last Item in a Vector in C++ language with well detailed examples.

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How to get Last Item in a Vector in C++ - Step by Step Examples

How to get Last Item in a Vector in C++ ?

Answer

✐ Examples

1 Get Last Item in a Vector of Integers

C++ Program

Output

2 Get Last Item in a Vector of Strings

C++ Program

Output

Summary

More C++ Vectors Tutorials