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Program to convert case of character

Program to convert case of character

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  • Write a program to convert case of character in C
  • Write a program to convert case of character in C++
  • Write a program to convert case of character in Python
  • Write a program to convert case of character in PHP
  • Write a program to convert case of character in Java
  • Write a program to convert case of character in Java Script
  • Write a program to convert case of character in C#

Explanation:

You can utilize programming methods or built-in functions from many languages to change a character’s case. Converting case usually entails changing alphabetic characters from uppercase to lowercase.

  • Uppercase to Lowercase:
    • Add 32 to the ASCII value of a character.
  • Lowercase to Uppercase:
    • Subtract 32 from the ASCII value of a character.

Alternatively, use built-in functions for case conversion.

Program to convert case of character

#include <stdio.h>
#include <ctype.h> // for toupper() and tolower()

int main() {
    char ch = 'A'; // Change this to test other characters
    if (islower(ch)) {
        ch = toupper(ch);
    } else if (isupper(ch)) {
        ch = tolower(ch);
    }
    printf("Converted character: %c\n", ch);
    return 0;
}

#include <iostream>
#include <cctype> // for std::toupper and std::tolower

int main() {
    char ch = 'A'; // Change this to test other characters
    if (std::islower(ch)) {
        ch = std::toupper(ch);
    } else if (std::isupper(ch)) {
        ch = std::tolower(ch);
    }
    std::cout << "Converted character: " << ch << std::endl;
    return 0;
}

ch = 'A'  # Change this to test other characters
if ch.islower():
    ch = ch.upper()
elif ch.isupper():
    ch = ch.lower()
print(f"Converted character: {ch}")

<?php
$ch = 'A'; // Change this to test other characters
if (ctype_lower($ch)) {
    $ch = strtoupper($ch);
} elseif (ctype_upper($ch)) {
    $ch = strtolower($ch);
}
echo "Converted character: $ch\n";
?>


public class Main {
    public static void main(String[] args) {
        char ch = 'A'; // Change this to test other characters
        if (Character.isLowerCase(ch)) {
            ch = Character.toUpperCase(ch);
        } else if (Character.isUpperCase(ch)) {
            ch = Character.toLowerCase(ch);
        }
        System.out.println("Converted character: " + ch);
    }
}

let ch = 'A'; // Change this to test other characters
if (ch === ch.toLowerCase()) {
    ch = ch.toUpperCase();
} else if (ch === ch.toUpperCase()) {
    ch = ch.toLowerCase();
}
console.log(`Converted character: ${ch}`);


using System;

class Program {
    static void Main() {
        char ch = 'A'; // Change this to test other characters
        if (char.IsLower(ch)) {
            ch = char.ToUpper(ch);
        } else if (char.IsUpper(ch)) {
            ch = char.ToLower(ch);
        }
        Console.WriteLine($"Converted character: {ch}");
    }
}

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