Example: StringCaseConversion in Java

C
C++
C#
Java
Python
PHP
// StringCaseConversion
public class Main {
    public static void main(String[] args) {
        // Step 1: Initialize a mixed-case string
        String mixedCase = "HelloWorld";

        // Step 2: Convert to uppercase
        String upperCase = mixedCase.toUpperCase();

        // Step 3: Convert to lowercase
        String lowerCase = mixedCase.toLowerCase();

        // Step 4: Print the original and converted strings
        System.out.println("Original string: " + mixedCase);
        System.out.println("Uppercase string: " + upperCase);
        System.out.println("Lowercase string: " + lowerCase);
    }
}