jtextfield光標閃爍太快，並不時註冊輸入

Question

嗨我創建一個程序，用戶需要提供某些輸入來獲得積分，並有一個計時器，但計時器是我創建的是使光標在jtextfield中閃爍得太快，以致程序有時需要輸入。在我的計時器類中，我導入了TimerTask並使用了timer.scheduleAtFixedRate（）來計算時間。這不是我所有的代碼，但這是主要的類。

import javax.swing.*; 
    import java.awt.*; 
    import java.awt.event.ActionEvent; 
    import java.awt.event.ActionListener; 

class Interface extends JPanel implements ActionListener { 

private JTextField textField; 
private int fontSize; 
private Font font; 
private GridBagConstraints c = new GridBagConstraints(); 
private int x, y; 
private collection userInputData; 
private boolean initialized = false; 
private String[] answers; 
private String[] questions; 
private int points = 0; 

private timer timer; 

private boolean timerStarted = false; 

Interface() { 
    super(new GridBagLayout()); 
    x = 0; 
    y = 0; 
    userInputData = new collection(); 
    setBackground(Color.BLACK); 


    timer = new timer(60); 

    questions = new String[] {"a", "b", "c", "d"}; 

    answers = new String[] {"a","b","c","d","e","f","g" }; 

    /*questions = new String[] {"雲", "人", "口", "一"}; 

    answers = new String[] {"去","十","二","大","運","中","丁" };*/ 

} 

public void paintComponent(Graphics g) { 
    super.paintComponent(g); 
    fontSize = getWidth()/25; 
    Font font = new Font(g.getFont().getFontName(), Font.BOLD, fontSize); 
    g.setFont(font); 
    g.setColor(Color.WHITE); 
    if(initialized){ 
     updateUserDataFrame(); 
     updateFrame(); 
     textField.requestFocus(); 
    } 
    if (!timer.timeUp()) { 
     questions(g); 
     fontSize = getWidth()/50; 
     Font n = new Font(g.getFont().getFontName(), Font.BOLD, fontSize); 
     g.setFont(n); 
     displayTimer(g); 
     points(g); 
     displayUserInput(g); 
    } 

    if (timer.timeUp()) { 
     displayScoreboard(g); 
     remove(textField); 
    } 

} 

private void displayTimer(Graphics g) { 
    if (!timerStarted) { 
     timer.start(); 
     timerStarted = true; 
    } 

    //fontSize = getWidth()/35; 
    timer.setColor(Color.RED); 
    timer.setPosition(getWidth() - (int) (getWidth()), fontSize); 
    timer.displayTimer(g); 

    repaint(); 
} 

private void displayScoreboard(Graphics g) { 
    int x = getWidth()/50; 
    int y = getHeight()/5; 
    g.drawString("Your Answers:", x, y); 
    /* String correctWrongNumber = "Correct: " + correctAnswers + " " 
      + "Wrong: " + (question.length - correctAnswers); 
    x = getWidth() - g.getFontMetrics().stringWidth(correctWrongNumber) - getWidth()/25; 
    g.drawString(correctWrongNumber, x, y); 
    x = getWidth()/50; 
    y += getHeight()/15 + fontSize; 
    for (int i = 0; i < studentAnswers.length; i++) { 
     g.drawString(i + 1 + ". " + studentAnswers[i], x, y); 
     x += getWidth()/10.5; 
    }*/ 

} 

private void points(Graphics g) { 
    int x = getWidth()/4; 
    int y = getHeight()/4; 
    g.setColor(Color.white); 
    g.drawString("Points: " + points, x, y); 
} 

private void questions(Graphics g) { 
    int x = getWidth()/4; 
    int y = getHeight()/8; 
    int borderY = getHeight() /60; 
    fontSize = getWidth()/15; 
    Font font = new Font(g.getFont().getFontName(), Font.BOLD, fontSize); 
    g.setFont(font); 
    for(int i = 0; i < questions.length; i++) { 

     g.setColor(Color.red.brighter()); 
     g.fillRect(x + 1, borderY, fontSize, fontSize); 
     g.setColor(Color.orange.brighter()); 
     g.drawRect(x, borderY, fontSize, fontSize); 
     g.setColor(Color.white); 
     g.drawString(questions[i],x,y); 
     x += getWidth()/6; 
    } 

} 

private void updateFrame() { 

    fontSize = getWidth()/20; 
    font = new Font("SansSerif", Font.BOLD, fontSize); 
    textField.setFont(font); 
    c.insets = new Insets(0, 0, getHeight()/2, 0); 
    remove(textField); 
    add(textField, c); 
} 

private void updateUserDataFrame(){ 
    int x = getWidth()/60; 
    int y = getHeight()/3 + getHeight()/20; 
    int width = getWidth()/16; 
    int height = getWidth()/16; 
    int fontSize = getWidth()/20; 
    Font font = new Font("SansSerif", Font.BOLD, fontSize); 

    userInputData.reset(); 
    while(userInputData.hasNext()){ 
     structure temp = (structure)userInputData.next(); 
     x += getWidth()/16; 
     temp.updateData(font, x, y, width, height); 
    } 
} 

private void displayUserInput(Graphics g) { 
    userInputData.paint(g); 

} 

void init(){ 
    x = getWidth()/60; 
    y = getHeight()/3 + getHeight()/20; 
    fontSize = getWidth()/20; 
    font = new Font("SansSerif", Font.BOLD, fontSize); 

    textField = new JTextField(3); 
    textField.setFont(font); 
    textField.addActionListener(this); 
    //Add Components to this panel. 
    c.insets = new Insets(0, 0, getHeight()/2, 0); 
    c.gridx = 0; 
    c.gridy = 0; 
    add(textField, c); 
    updateUI(); 
    initialized = true; 
    repaint(); 


} 

@Override 
public void actionPerformed(ActionEvent e) { 
    int buttonWidth = getWidth()/16; 
    int buttonHeight = getWidth()/16; 
    x += getWidth()/16; 
    String userInput = textField.getText(); 
    for(int i = 0; i < answers.length; i++) { 
     if(answers[i].equals(textField.getText())) 
      points++; 
    } 
    userInputData.add(new structure(userInput, Color.WHITE, font,x,y,buttonWidth,buttonHeight)); 
    textField.setText(""); 
    repaint(); 
} 
} 

編輯：Timer類

import java.awt.*; 
    import java.util.Timer; 
    import java.util.TimerTask; 

class timer { 
private Timer timer = new Timer(); 
private int timeLimit; 
private int x, y; 
private Color color; 
private TimerTask task = new TimerTask() { 
    public void run() { 
     timeLimit--; 
     if(timeLimit == 0){ 
      timer.cancel(); 
     } 
    } 
}; 

timer() { 
    timeLimit = 120; 
} 

timer(int limit) { 
    timeLimit = limit; 
} 

void start() { 
    timer.scheduleAtFixedRate(task, 1000, 1000); 
} 

void displayTimer(Graphics g) { 
    int minute = timeLimit/60; 
    int second = timeLimit % 60; 
    g.setColor(color); 
    if (minute < 10) { 
     if (second < 10) 
      g.drawString("0" + minute + ":0" + second, x, y); 

     else 
      g.drawString("0" + minute + ":" + second, x, y); 

    } else { 
     if (second < 10) 
      g.drawString(minute + ":0" + second, x, y); 

     else 
      g.drawString(minute + ":" + second, x, y); 

    } 
} 

void setColor(Color color) { 
    this.color = color; 
} 

void setPosition(int x, int y) { 
    this.x = x; 
    this.y = y; 
} 

int getTime() { 
    return timeLimit; 
} 

void setTime(int time) { 
    timeLimit = time; 
} 

boolean timeUp() { 
    return timeLimit == 0; 
} 

} 

Answer 1

我不明白的地方這timer是從哪裏來的？您可以使用此代碼Timer timer = new Timer(1000,this);而不是timer timer = new timer(60);

使1000使能您使用實時定時器。

我希望這能讓你的生活更輕鬆一點。