Example: Reverse String using Java 8 Streams in Java

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// Reverse String using Java 8 Streams
import java.util.stream.Collectors;
import java.util.stream.IntStream;

public class Main {
    public static void main(String[] args) {
        // Step 1: Define the original string
        String originalString = "stream";

        // Step 2: Get an IntStream of character codes
        String reversedString = IntStream.range(0, originalString.length())
                                    .mapToObj(i -> originalString.charAt(originalString.length() - 1 - i)) // Map to characters in reverse order
                                    .map(String::valueOf) // Convert char to String
                                    .collect(Collectors.joining()); // Join them back into a single String

        // Step 3: Print the original and reversed strings
        System.out.println("Original String: " + originalString);
        System.out.println("Reversed String: " + reversedString);
    }
}