I am coding Hangman game with javaFX, somehow the code assumes all of my guesses are wrong and always considered a mistake even if it’s correct. So the user ends up always losing. I think it has something to do with the while loop I am using to make sure all redundancy of any letter is dealt with (like in “banana” if the user enters “a”, the currect progress should be displayed as “-a-a-a” instead of “-a—-“) but i don’t know: here is my controller class as well as word, if you need any other classes let me know!

import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.scene.control.Button;
import javafx.scene.layout.Pane;
import javafx.scene.text.Text;
import java.io.FileNotFoundException;
import java.util.Arrays;
import java.util.List;

public class Controller {

    //inject an element defined in fxml to controller!
    @FXML
    //pane is a form container
    private Pane man;
    @FXML
    private Pane base1;
    @FXML
    private Pane base2;
    @FXML
    private Pane base3;
    @FXML
    private Pane pole;
    @FXML
    private Pane rod;
    @FXML
    private Pane rope1;
    @FXML
    private Pane rope2;
    @FXML
    private Text text;
    @FXML
    private Pane buttons;
    @FXML
    private Text winStatus;
    @FXML
    private Text realWord;

    private int mistakes;
    private int correct;
    
    private String[] table;
    private String word;
    private String category;
    private List<String> myLetters;
    private List<String> answer;

    public Controller(){
    }

    public void initialize() {
        base1.setVisible(false);
        base2.setVisible(false);
        base3.setVisible(false);
        pole.setVisible(false);
        rod.setVisible(false);
        rope1.setVisible(false);
        rope2.setVisible(false);
        man.setVisible(false);
        buttons.setDisable(false);
        
        mistakes=0;
        correct=0;
        
        table = Words.getRandomWord(2);
        word=table[1];
        category=table[0];
        
        myLetters = Arrays.asList(word.split(""));
        answer = Arrays.asList(new String[myLetters.size()*2]);
        
        for(int i=0; i<myLetters.size()*2; i++){
            if(i%2==0){
                answer.set(i, "_");
            }else{
                answer.set(i, " ");
            }
        }
        String res = String.join("", answer);
        text.setText(res);
        
        //hide winstatus and realword in case of a new game! 
        winStatus.setText("");
        realWord.setText("");
    }

    //when do i call for u ?when the event i declared happened!
    public void onClick(ActionEvent event){
        //getText return string not char
        String letter = ((Button)event.getSource()).getText();
        ((Button) event.getSource()).setDisable(true);
        
        if(myLetters.contains(letter)){
            correct++;
            int letterIndex = myLetters.indexOf(letter);
            while (letterIndex != -1) {
                myLetters.set(letterIndex, "*");
                answer.set(letterIndex*2, letter);
                letterIndex = myLetters.indexOf(letter);
                String res = String.join("", answer);
                text.setText(res);
            }
            
            if(correct==word.length()){
                winStatus.setText("You Win!");
                buttons.setDisable(true);
            }
        }
        else{
            mistakes++;
            if(mistakes ==1)       base1.setVisible(true);
            else if (mistakes ==2) base2.setVisible(true);
            else if (mistakes ==3) base3.setVisible(true);
            else if (mistakes ==4) pole.setVisible(true);
            else if (mistakes ==5) rod.setVisible(true);
            else if (mistakes ==6) rope1.setVisible(true);
            else if (mistakes ==7) rope2.setVisible(true);
            else if (mistakes ==8){
                rope2.setVisible(false); //7bal lmachan9a around the neck 
                man.setVisible(true);//sad face+body
                winStatus.setText("You Lose!");
                realWord.setText("The actual word was " + word);
                buttons.setDisable(true);
            }
        }
    }

    public void newGame(){
        //i don't get what does the loops does
        //why enable here and enable in initialize?
        for(int i=0; i<26; i++){
            buttons.getChildren().get(i).setDisable(false);
        }
        initialize();
    }


}
package sample;

import java.util.Random;

public class Words{
    
       
    public static String[] getRandomWord(int languageChoice) {
        
        String[] fruits = {"strawberry", "banana", "orange", "apple", "cherry", "peach", "kiwi", "lemon", "grape", "mango"};
        String[] countries = {"tunisia", "spain", "japan", "qatar", "greece", "palestine", "italy", "canada", "germany", "china"};
        String[] animals = {"shark", "wolf", "cat", "cow", "snake", "horse", "dog", "lion", "rabbit", "zebra"};
        String[] languages = {"arabic", "korean", "english", "russian", "turkish", "hindi", "spanish", "french", "german", "chinese"};
        String[] occupations = {"doctor", "engineer", "teacher", "baker", "clown", "pilot", "lawyer", "chef", "nurse", "police"};

        String[] fruit = {"fraise", "bananes", "orange", "pomme", "cerise", "pêche", "kiwi", "citron", "raisin", "mangue"};
        String[] pays = {"tunisie", "espagne", "japon", "qatar", "grèce", "palestine", "italie", "canada", "allemagne", "chine"};
        String[] animaux = {"requin", "loup", "chat", "vache", "serpent", "cheval", "chien", "lion", "lapin", "zèbre"};
        String[] langues = {"arabe", "coréen", "anglais", "russe", "turc", "hindi", "espagnol", "français", "allemand", "chinois"};
        String[] professions = {"médecin", "ingénieur", "enseignant", "boulanger", "clown", "pilote", "avocat", "chef", "infirmier", "police"};
        
        String category=null;
        String word=null;      
        int categoryIndex = new Random().nextInt(5)+1; 

        if (languageChoice == 2) {
            switch (categoryIndex) {
                case 1:
                    category = "fruits";
                    word = fruits[new Random().nextInt(fruits.length)];
                    break;
                case 2:
                    category = "countries";
                    word = countries[new Random().nextInt(countries.length)];
                    break;
                case 3:
                    category = "animals";
                    word = animals[new Random().nextInt(animals.length)];
                    break;
                case 4:
                    category = "languages";
                    word = languages[new Random().nextInt(languages.length)];
                    break;
                case 5:
                    category = "occupations";
                    word = occupations[new Random().nextInt(occupations.length)];
                    break;
            }
        } 
        else {
            switch (categoryIndex) {
                case 1:
                    category = "fruits";
                    word = fruit[new Random().nextInt(fruit.length)];
                    break;
                case 2:
                    category = "pays";
                    word = pays[new Random().nextInt(pays.length)];
                    break;
                case 3:
                    category = "animaux";
                    word = animaux[new Random().nextInt(animaux.length)];
                    break;
                case 4:
                    category = "langues";
                    word = langues[new Random().nextInt(langues.length)];
                    break;
                case 5:
                    category = "professions";
                    word = professions[new Random().nextInt(professions.length)];
                    break;
            }
        }

        return new String[]{category, word};
    }
} ```