皆さん、こんにちは。私はEclipseを使用しており、プログラムはコンパイルおよび実行中です。3 つのクラスがあり、それらは同じパッケージに入っています。そのため、クラス ThreadQuizCountdown の i の値を他のクラス PanelQuizCountdown int に timeField という名前の JTextField に渡したいのですが、現在 i がコンソールに表示されています。ここにコードがあります
/**The driver class of the program. Here is the JFrame
* class name RunQuizCountdown.java
* @author Kiril Anastasov
* @date 09/03/2012
*/
import java.awt.*;
import javax.swing.*;
public class RunQuizCountdown
{
public static void main(String[] args)
{
JFrame application = new JFrame();
PanelQuizCountdown panel = new PanelQuizCountdown();
application.add(panel);
application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
application.setSize(200,300);
application.setLocationByPlatform(true);
application.setVisible(true);
}
}
/** Here is the GUI of the program
* class name PanelQuizCountdown.java
* @author Kiril Anastasov
* @date 09/03/2012
*/
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class PanelQuizCountdown extends JPanel implements ActionListener
{
JTextField timeField, answerField;
JLabel messageLabel, correctLabel, totalLabel;
int x, y;
int correct;
int total;
ThreadQuizCountdown myQuiz;
PanelQuizCountdown()
{
timeField = new JTextField(5);
myQuiz = new ThreadQuizCountdown(timeField);
this.add(timeField);
myQuiz.begin();
messageLabel = new JLabel("What is the result of " + x + " * " + y);
this.add(messageLabel);
answerField = new JTextField(5);
this.add(answerField);
correctLabel = new JLabel("You gave : " + correct + " correct answers");
this.add(correctLabel);
totalLabel = new JLabel("You answered: " + total + " questions");
this.add(totalLabel);
}
public void actionPerformed(ActionEvent ae)
{
}
}
/** Here is the thread of the program
* class name ThreadQuizCountdown.java
* @author Kiril Anastasov
* @date 09/03/2012
*/
import javax.swing.JTextField;
public class ThreadQuizCountdown implements Runnable
{
JTextField timeField;
Thread myThread = new Thread(this);
int i = 30;
boolean go = true;
ThreadQuizCountdown(JTextField theTimeField)
{
timeField = theTimeField;
}
public void run()
{
while(go)
{
System.out.println(i);
try
{
myThread.sleep(1000);
}
catch (InterruptedException ie)
{
System.out.println("thread exception");
}
timeField = new JTextField(26);
if(i == 0 )
{
go = false;
}
i--;
}
}
public void begin()
{
myThread.start();
}
public void finish()
{
myThread.stop();
}
}