How to convert First Character in String to Uppercase in C++ - Step by Step Examples

How to convert First Character in String to Uppercase in C++ ?

Answer

To convert the first character in a string to uppercase in C++, you can use functions such as toupper() and string manipulation techniques.

✐ Examples

1 Converting First Character of "hello world" String to Uppercase

In this example,

We create a string named str1 with a value of "hello world".
We convert the first character of str1 to uppercase using the toupper() function.
Finally, we replace the first character of the string with the modified uppercase character.

C++ Program

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

int main() {
    std::string str1 = "hello world";
    str1[0] = std::toupper(str1[0]);
    std::cout << "Modified string is: " << str1 << std::endl;
    return 0;
}

Output

Modified string is: Hello world

2 Converting First Character of "cpp" String to Uppercase

In this example,

We create a string named str2 with a value of "cpp".
We convert the first character of str2 to uppercase using the toupper() function.
Finally, we replace the first character of the string with the modified uppercase character.

C++ Program

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

int main() {
    std::string str2 = "cpp";
    str2[0] = std::toupper(str2[0]);
    std::cout << "Modified string is: " << str2 << std::endl;
    return 0;
}

Output

Modified string is: Cpp

Summary

In this tutorial, we learned How to convert First Character in String to Uppercase in C++ language with well detailed examples.

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How to convert First Character in String to Uppercase in C++ - Step by Step Examples

How to convert First Character in String to Uppercase in C++ ?

Answer

✐ Examples

1 Converting First Character of "hello world" String to Uppercase

C++ Program

Output

2 Converting First Character of "cpp" String to Uppercase

C++ Program

Output

Summary

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