UPPER()

This is a string method that converts all alphabetic characters in a string to uppercase while leaving non-alphabetic characters unchanged. It is frequently used in text formatting, creating emphasized output, and performing case-insensitive comparisons by converting strings to a consistent form. For example, "Hello".upper() results in "HELLO". In reverse engineering and security testing, upper() can help when matching or manipulating protocol commands, constants, or encoded data that may appear in varying cases but must be normalized for accurate analysis or comparison.

#!/usr/bin/env python3

def main() -> None:
    mixedString = "Am I DreAmIng";
    
    lowercaseString = mixedString.lower();
    print(lowercaseString);
    
    uppercaseString = mixedString.upper();
    print(uppercaseString);

if __name__ == "__main__":
    main();