使用Math.random制作单词加扰器

Question

import java.util.Scanner;

public class WordScrambler {

  public static void main(String[] args) {

    Scanner in = new Scanner(System.in);
    int chosenWord;
    String[] words = {"hogwash","Rudolph","yule-log","Eggnog","CandyCane","Christmas","Fruitcake","gingerbread","Krampus","nutcracker"};

    System.out.println("Pick a number between 1-10");
    chosenWord=in.nextInt();

    String a=words[chosenWord].substring(0,words[chosenWord].length()/2);
    String b=words[chosenWord].substring(words[chosenWord].length()/2);
    String c=b+a;
    int x=(int)(Math.random()*(words[chosenWord].length()-1))+1;
    String d=c.substring(0, words[chosenWord].length()-x);
    String e=c.substring(words[chosenWord].length()-x);
    String f=e+d;
    System.out.println(f);
  }
}

This is what i have so far. I cant find a way to Scramble it anymore. Right now the output is for example: Hogwash :shhogwa. Thats the only word that Scrambles.

Answer 1

    public static void main(String[] args) {

    Scanner in = new Scanner(System.in);
    int chosenIndex;
    String[] words = { "hogwash", "Rudolph", "yule-log", "Eggnog", "CandyCane", "Christmas", "Fruitcake",
            "gingerbread", "Krampus", "nutcracker" };

    System.out.println("Pick a number between 1-10");
    chosenIndex = in.nextInt();

    String chosenWord = words[chosenIndex - 1];
    System.out.println(chosenWord);

    StringBuilder scrambled = new StringBuilder();
    List<Character> letters = new ArrayList<Character>();
    for (char x : chosenWord.toCharArray()) {
        letters.add(x);
    }
    while (letters.size() != 0) {
        int random = (int) (Math.random() * letters.size());
        scrambled.append(letters.remove(random));
    }

    System.out.println(scrambled.toString());
}

use meaningful variable names so its clear what its referring to