Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
60 views
in C++ by (106k points)
How can you convert a string entered by the user to uppercase or lowercase?

Please log in or register to answer this question.

1 Answer

0 votes
by (106k points)

You can use the toupper() and tolower() functions from the <cctype> header to convert a string to uppercase or lowercase. 

Here's an example:

#include <iostream>
#include <string>
#include <cctype>

int main() {
    std::string userInput;
    std::cout << "Enter a string: ";
    std::getline(std::cin, userInput);

    // Convert to uppercase
    for (char& c : userInput) {
        c = std::toupper(c);
    }
    std::cout << "Uppercase string: " << userInput << std::endl;

    // Convert to lowercase
    for (char& c : userInput) {
        c = std::tolower(c);
    }
    std::cout << "Lowercase string: " << userInput << std::endl;

    return 0;
}

Related questions

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...