Example: Sort String using Stream API in Java

// Sort String using Stream API
import java.util.stream.Collectors; // Required for Collectors

// Main class containing the entry point of the program
public class Main {
    public static void main(String[] args) {
        // Step 1: Define the input string
        String inputString = "example";
        System.out.println("Original String: " + inputString);

        // Step 2: Convert the string to an IntStream of characters, sort, and collect
        String sortedString = inputString.chars() // Gets an IntStream where each int is a character's Unicode value
                                        .sorted() // Sorts the character Unicode values in ascending order
                                        .collect(StringBuilder::new, // Supplier: Creates a new StringBuilder
                                                 StringBuilder::appendCodePoint, // Accumulator: Appends each sorted int (code point)
                                                 StringBuilder::append) // Combiner: Used for parallel streams to merge StringBuilders
                                        .toString(); // Convert the final StringBuilder to a String

        // Step 3: Print the sorted string
        System.out.println("Sorted String: " + sortedString);
    }
}