Seems to be okay but something woring in terms of performance (about GUI)

Question

I have worked on some code on my textbook. I think everything seems to be fine but something is wrong.
I tried to figure out this code but unfortunately I couldn't.
'doTraitTest' facilitator doesn't act at all.
Please give me any advice and thanks in advance.
Here is the code that gave me a headache.
// A simple psychometric-like type tool
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class TypeIndicator {
// class constants
private final int WINDOW_WIDTH = 400;
private final int WINDOW_HEIGHT = 325;
private final int TEXT_WIDTH = 30;
private final String LEGEND =
"A series of preferences are asked. The responses are "
+ "used to determine a personality type profile. The tool "
+ "is primitive and is meant for fun. You should not make "
+ "any decisions based on its analysis. ";
// instance GUI variable
private JFrame window = new JFrame("Type Indicator");
private JTextArea legendArea = new JTextArea(LEGEND, 4, TEXT_WIDTH);
private JTextArea resultArea = new JTextArea();
private JTextField statementPad = new JTextField("", TEXT_WIDTH);
private JRadioButton trueButton = new JRadioButton("True ");
private JRadioButton falseButton = new JRadioButton("False");
private JRadioButton hiddenButton = new JRadioButton("False");
private ButtonGroup buttonGroup = new ButtonGroup();
// instant test variables
private boolean introvert;
private boolean senser;
private boolean thinker;
private boolean judger;
public static void main(String [] args){
TypeIndicator testInstrument = new TypeIndicator();
// Typeindicator():default constructor
public TypeIndicator () {
configureAndDisplayGUI();
introvert = isIntroversionDominant();
senser = isSensingDominant();
thinker = isThinkingDominant();
judger = isJudgingDominant();
presentResults();
// configureAndDisplayGUI(): set up the GUI
private void configureAndDisplayGUI (){
// configure elements
window.setSize(WINDOW_WIDTH, WINDOW_HEIGHT);
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
legendArea.setEditable(false);
legendArea.setLineWrap(true);
legendArea.setWrapStyleWord(true);
legendArea.setBackground(window.getBackground());
statementPad.setVisible(false);
statementPad.setEditable(false);
statementPad.setHorizontalAlignment(SwingConstants.CENTER);
statementPad.setBackground(window.getBackground());
trueButton.setVisible(false);
falseButton.setVisible(false);
buttonGroup.add(trueButton);
buttonGroup.add(falseButton);
resultArea.setEditable(false);
resultArea.setBackground(window.getBackground());
// add elements to window's content pane
window.setLayout(new FlowLayout());
window.add(legendArea);
window.add(statementPad);
window.add(trueButton);
window.add(falseButton);
window.add(resultArea);
// ready to display GUI
window.setVisible(true);
//isIntroversionDominant():is introversion dominant to extroversion
private boolean isIntroversionDominant() {
String s1 = "I prefer renting a video to going to a party.";
String s2 = "I am happy when house guests leave.";
String s3 = "Meeting new people makes me tense.";
String s4 = "I enjoy being alone.";
String s5 = "Crowd suck the life out of me.";
return doTraitTest (s1, s2, s3, s4, s5);
private boolean isSensingDominant() {
String s1 = "Facts are more interesting than ideas";
String s2 = "I need the details more than the big picture.";
String s3 = "I always measure, I never estimate";
String s4 = "Seeing is believing";
String s5 = "If you cannot touch it, it's not real.";
return doTraitTest (s1, s2, s3, s4, s5);
private boolean isThinkingDominant() {
String s1 = "I prefer page 1 to the comics in a newspaper";
String s2 = "I think therefore I am.";
String s3 = "I am not an emotional person";
String s4 = "Tears will not cause me to change my mind";
String s5 = "I'd rather be Data than Troi";
return doTraitTest (s1, s2, s3, s4, s5);
private boolean isJudgingDominant() {
String s1 = "It is easy to make a decision";
String s2 = "My first impressions are usually right";
String s3 = "Wrong decisions are better than none.";
String s4 = "I seldom have second thougths";
String s5 = "Uncertainty makes me uncomfortable";
return doTraitTest (s1, s2, s3, s4, s5);
// doTraitTest(): test for dominant response for a type category
private boolean doTraitTest(String s1, String s2, String s3,
String s4, String s5) {
// create running totals for responses
int choiceTrue = 0;
int choiceFalse = 0;
// pose queries and get responses
if (getTrueorFalseResponse(s1)) {
++choiceTrue;
else {
++choiceFalse;
if (getTrueorFalseResponse(s2)){
++choiceTrue;
else {
++choiceFalse;
if (getTrueorFalseResponse(s3)){
++choiceTrue;
else {
++choiceFalse;
if (getTrueorFalseResponse(s4)){
++choiceTrue;
else {
++choiceFalse;
if (getTrueorFalseResponse(s5)){
++choiceTrue;
else {
++choiceFalse;
// produce test result
return choiceTrue > choiceFalse;
// getTrueorFalseResponse(); pose a statement and get response
private boolean getTrueorFalseResponse(String statement) {
statementPad.setText(statement);
hiddenButton.setSelected(true);
statementPad.setVisible(true);
trueButton.setVisible(true);
falseButton.setVisible(true);
for(; ;) {
if(trueButton.isSelected() || falseButton.isSelected()){
break;
statementPad.setVisible(false);
trueButton.setVisible(false);
falseButton.setVisible(false);
return trueButton.isSelected();
// presentResult(): display testing results
private void presentResults() {
// setup text
String result = "Your type is \n"
+ " "
+ ((introvert) ? "I" : "E")
+ ((senser) ? "S": "N")
+ ((thinker) ? "T": "F")
+ ((judger) ? "J": "P")
+ "\n"
+ "where\n"
+ "* E = extroversion \n"
+ "* I = introversion \n"
+ "* S = sensing \n"
+ "* N = intuitive \n"
+ "* T = thinking \n"
+ "* F = feeling \n"
+ "* J = judgment \n"
+ "* P = perception \n"
+ "\n"
+ " Thank you for trying the tool";
// display test and quit button
resultArea.setText(result);
window.setVisible(true);

Answer 1

Sorry about it. Hope this is better for you to read.
// A simple psychometric-like type tool
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class TypeIndicator {
    // class constants
    private final int WINDOW_WIDTH = 400;
    private final int WINDOW_HEIGHT = 325;
    private final int TEXT_WIDTH = 30;
    private final String LEGEND =
    "A series of preferences are asked. The responses are "
    + "used to determine a personality type profile. The tool "
    + "is primitive and is meant for fun. You should not make "
    + "any decisions based on its analysis. ";
    // instance GUI variable
    private JFrame window = new JFrame("Type Indicator");
    private JTextArea legendArea = new JTextArea(LEGEND, 4, TEXT_WIDTH); //parameters : String, rows, and columns
    private JTextArea resultArea = new JTextArea();
    private JTextField statementPad = new JTextField("", TEXT_WIDTH);
    private JRadioButton trueButton = new JRadioButton("True ");
    private JRadioButton falseButton = new JRadioButton("False");
    private JRadioButton hiddenButton = new JRadioButton("False");
    private ButtonGroup buttonGroup = new ButtonGroup();
    // instant test variables
    private boolean introvert;
    private boolean senser;
    private boolean thinker;
    private boolean judger;
    public static void main(String [] args){
        TypeIndicator testInstrument = new TypeIndicator();
    // Typeindicator():default constructor
    public TypeIndicator () {
        configureAndDisplayGUI();
        introvert = isIntroversionDominant();
        senser = isSensingDominant();
        thinker = isThinkingDominant();
        judger = isJudgingDominant();
        presentResults();
    // configureAndDisplayGUI(): set up the GUI
    private void configureAndDisplayGUI (){
        // configure elements
        window.setSize(WINDOW_WIDTH, WINDOW_HEIGHT);
        window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        legendArea.setEditable(false);
        legendArea.setLineWrap(true);
        legendArea.setWrapStyleWord(true);
        legendArea.setBackground(window.getBackground());
        statementPad.setVisible(false);
        statementPad.setEditable(false);
        statementPad.setHorizontalAlignment(SwingConstants.CENTER);
        statementPad.setBackground(window.getBackground());
        trueButton.setVisible(false);
        falseButton.setVisible(false);
        buttonGroup.add(trueButton);
        buttonGroup.add(falseButton);
        resultArea.setEditable(false);
        resultArea.setBackground(window.getBackground());
        // add elements to window's content pane
        window.setLayout(new FlowLayout());
        window.add(legendArea);
        window.add(statementPad);
        window.add(trueButton);
        window.add(falseButton);
        window.add(resultArea);
        // ready to display GUI
        window.setVisible(true);
    //isIntroversionDominant():is introversion dominant to extroversion
    private boolean isIntroversionDominant() {
        String s1 = "I prefer renting a video to going to a party.";
        String s2 = "I am happy when house guests leave.";
        String s3 = "Meeting new people makes me tense.";
        String s4 = "I enjoy being alone.";
        String s5 = "Crowd suck the life out of me.";
        return doTraitTest (s1, s2, s3, s4, s5);
    private boolean isSensingDominant() {
        String s1 = "Facts are more interesting than ideas";
        String s2 = "I need the details more than the big picture.";
        String s3 = "I always measure, I never estimate";
        String s4 = "Seeing is believing";
        String s5 = "If you cannot touch it, it's not real.";
        return doTraitTest (s1, s2, s3, s4, s5);
    private boolean isThinkingDominant() {
        String s1 = "I prefer page 1 to the comics in a newspaper";
        String s2 = "I think therefore I am.";
        String s3 = "I am not an emotional person";
        String s4 = "Tears will not cause me to change my mind";
        String s5 = "I'd rather be Data than Troi";
        return doTraitTest (s1, s2, s3, s4, s5);
    private boolean isJudgingDominant() {
        String s1 = "It is easy to make a decision";
        String s2 = "My first impressions are usually right";
        String s3 = "Wrong decisions are better than none.";
        String s4 = "I seldom have second thougths";
        String s5 = "Uncertainty makes me uncomfortable";
        return doTraitTest (s1, s2, s3, s4, s5);
    // doTraitTest(): test for dominant response for a type category
    private boolean doTraitTest(String s1, String s2, String s3,
    String s4, String s5) {
        // create running totals for responses
        int choiceTrue = 0;
        int choiceFalse = 0;
        // pose queries and get responses
        if (getTrueorFalseResponse(s1)) {
            ++choiceTrue;
        else {
            ++choiceFalse;
        if (getTrueorFalseResponse(s2)){
            ++choiceTrue;
        else {
            ++choiceFalse;
        if (getTrueorFalseResponse(s3)){
            ++choiceTrue;
        else {
            ++choiceFalse;
        if (getTrueorFalseResponse(s4)){
            ++choiceTrue;
        else {
            ++choiceFalse;
        if (getTrueorFalseResponse(s5)){
            ++choiceTrue;
        else {
            ++choiceFalse;
        // produce test result
        return choiceTrue > choiceFalse;
        // getTrueorFalseResponse(); pose a statement and get response
        private boolean getTrueorFalseResponse(String statement) {
            statementPad.setText(statement);
            hiddenButton.setSelected(true);
            statementPad.setVisible(true);
            trueButton.setVisible(true);
            falseButton.setVisible(true);
            for(; ;) {
                if(trueButton.isSelected() || falseButton.isSelected()){
                    break;
            statementPad.setVisible(false);
            trueButton.setVisible(false);
            falseButton.setVisible(false);
            return trueButton.isSelected();
        // presentResult(): display testing results
        private void presentResults() {
            // setup text
            String result = "Your type is \n"
            + "   "
            + ((introvert) ? "I" : "E")
            + ((senser) ? "S": "N")
            + ((thinker) ? "T": "F")
            + ((judger) ? "J": "P")
            + "\n"
            + "where\n"
            + "* E = extroversion \n"
            + "* I = introversion \n"
            + "* S = sensing \n"
            + "* N = intuitive \n"
            + "* T = thinking \n"
            + "* F = feeling \n"
            + "* J = judgment \n"
            + "* P = perception \n"
            + "\n"
            + " Thank you for trying the tool";
            // display test and quit button
            resultArea.setText(result);
            window.setVisible(true);
}