Shuffling Strings in Java

How to shuffle a string in Java.
It was pretty tedious, so I made an article about it. I want a .suffld kind of thing.

	import java.util.ArrayList;
	import java.util.Arrays;
	import java.util.Collections;
	import java.util.List;

	public class Main {

	static public void main(String[] args) {
	String str = "I like Snorlax!!!";

	// shuffle 1
	System.out.println("shuffle1: " + shuffle1(str));

	// shuffle 2
	System.out.println("shuffle2: " + shuffle2(str));
	}

	static private String shuffle1(String str) {
	List<Character> chars = new ArrayList<>();
	for (char ch : str.toCharArray()) {
	chars.add(ch);
	}
	Collections.shuffle(chars);

	StringBuilder builder = new StringBuilder(chars.size());
	for(Character ch: chars) {
	builder.append(ch);
	}
	return builder.toString();
	}

	static private String shuffle2(String str) {
	final List<String> singles = Arrays.asList(str.split(""));
	Collections.shuffle(singles);
	return singles.stream().reduce((s1, s2) -> s1 + s2).get();
	}
	}

view raw Main.java hosted with ❤ by GitHub