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/* * A C++ version to change the case of a letter */ #include <cctype> #include <iostream> int main(void) { char letter = 'b'; std::cout << "Before toupper: " << letter << std::endl; letter = std::toupper(letter); std::cout << "After toupper: " << letter << std::endl; letter = std::tolower(letter); std::cout << "After tolower: " << letter << std::endl; return 0; } /* Output: Before toupper: b After toupper: B After tolower: b */
// Demonstrate toUpperCase() and toLowerCase(). class ChangeCase { public static void main(String args[]) { String s = "This is a test."; System.out.println("Original: " + s); String upper = s.toUpperCase(); String lower = s.toLowerCase(); System.out.println("Uppercase: " + upper); System.out.println("Lowercase: " + lower); } } /* Output: Original: This is a test. Uppercase: THIS IS A TEST. Lowercase: this is a test. */
/* * A C version to change the case of a letter */ #include <stdio.h> #include <ctype.h> int main(void) { char letter = 'a'; printf ("Before toupper: %c\n", letter); letter = toupper(letter); printf ("Before toupper: %c\n", letter); letter = tolower(letter); printf ("Before toupper: %c\n", letter); return 0; } /* Output: Before toupper: b After toupper: B After tolower: b */