Example: Convert String Case in Java

C
C++
C#
Java
Python
PHP
// Convert String Case
public class Main {
    public static void main(String[] args) {
        String originalString = "Hello Java World 123!";

        // Step 1: Convert to uppercase
        String upperCaseString = originalString.toUpperCase();
        System.out.println("Original: " + originalString);
        System.out.println("Uppercase: " + upperCaseString);

        // Step 2: Convert to lowercase
        String lowerCaseString = originalString.toLowerCase();
        System.out.println("Lowercase: " + lowerCaseString);
    }
}