Example: Toggle Case Using Java Streams in Java

// Toggle Case Using Java Streams
import java.util.stream.Collectors;

public class Main {
    public static void main(String[] args) {
        // Step 1: Define the input string
        String inputString = "Java Stream Power!";
        System.out.println("Original String: " + inputString);

        // Step 2: Convert the string to an IntStream of character codes
        String toggledString = inputString.chars()
            // Step 3: Map each character code to its toggled version
            .map(c -> {
                if (Character.isUpperCase(c)) {
                    return Character.toLowerCase(c);
                } else if (Character.isLowerCase(c)) {
                    return Character.toUpperCase(c);
                } else {
                    return c; // Keep non-alphabetic characters as they are
                }
            })
            // Step 4: Collect the transformed character codes into a new String
            .collect(StringBuilder::new, StringBuilder::appendCodePoint, StringBuilder::append)
            .toString();

        // Step 5: Print the result
        System.out.println("Toggled String: " + toggledString);
    }
}