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24.10 потоки

CHerry

Дата: Понедельник, 2011-10-24, 19:55:40 | Сообщение # 1

Генералиссимус

Группа: Администраторы

Сообщений: 141

Репутация: 3732

Статус: Offline

Code

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

public class jResponsiveUIwThread extends JFrame {
    private boolean stop = false;
    private JTextField tfCount;
    private int countValue = 1;

    public jResponsiveUIwThread() {
       Container cp = getContentPane();
       cp.setLayout(new FlowLayout(FlowLayout.CENTER, 10, 10));
       cp.add(new JLabel("Counter"));
       tfCount = new JTextField("" + countValue, 10);
       tfCount.setEditable(false);
       cp.add(tfCount);

       JButton btnStart = new JButton("Start Counting");
       cp.add(btnStart);
       btnStart.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent evt) {
             stop = false;
             Thread t = new Thread() {
                public void run() {
                   for (int i = 0; i < 100000; i++) {
                      if (stop) break;
                      tfCount.setText("" + countValue);
                      countValue++;
                      // suspend this thread via sleep() and yield control to other threads
                      try {
                         sleep(10);
                      } catch (InterruptedException ex) {}
                   }
                }
             };
             t.start();
          }
       });
       JButton btnStop = new JButton("Stop Counting");
       cp.add(btnStop);
       btnStop.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent evt) { stop = true; }
       });
       setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
       setTitle("Counter");
       setSize(300, 120);
       setVisible(true);
    }

    public static void main(String[] args) {
       new jResponsiveUIwThread();
    }
}

CHerry

Дата: Понедельник, 2011-10-24, 20:18:25 | Сообщение # 2

Генералиссимус

Группа: Администраторы

Сообщений: 141

Репутация: 3732

Статус: Offline

Code

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

public class jResponsiveUIwEventDispatcher extends JFrame {
    private boolean stop = false;
    private JTextField tfCount;
    private int countValue = 1;

    // Create the GUI and show it. For thread safety, this method should
    // be invoked from the event-dispatching thread instead of the main thread
    private void createAndShowGUI() {
       Container cp = getContentPane();
       cp.setLayout(new FlowLayout(FlowLayout.CENTER, 10, 10));
       cp.add(new JLabel("Counter"));
       tfCount = new JTextField("" + countValue, 10);
       tfCount.setEditable(false);
       cp.add(tfCount);

       JButton btnStart = new JButton("Start Counting");
       cp.add(btnStart);
       btnStart.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent evt) {
             stop = false;
             // start a new thread to do the counting
             Thread t = new Thread() {
                public void run() {
                   while (!stop) {
                      tfCount.setText("" + countValue);
                      countValue++;
                      // suspend itself and yield control to other threads
                      try {
                         sleep(10);
                      } catch (InterruptedException ex) {}
                   }
                }
             };
             t.start();
          }
       });
       JButton btnStop = new JButton("Stop Counting");
       cp.add(btnStop);
       btnStop.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent evt) {
             stop = true;
          }
       });
       setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
       setSize(300, 120);
       setTitle("Counter");
       setVisible(true);   // show and realize the window
    }

    public static void main(String[] args) {
       // The main thread schedules a job for the event-dispatching thread to create the GUI
       javax.swing.SwingUtilities.invokeLater(new Runnable() {
          public void run() {
             new jResponsiveUIwEventDispatcher().createAndShowGUI();
          }
       });
    }
}

Dimon

Дата: Понедельник, 2011-10-24, 22:03:40 | Сообщение # 3

Рядовой

Группа: Проверенные

Сообщений: 11

Репутация: 0

Статус: Offline

А вот то, что я успел сделать на занятии, на основе примера про многопоточный таймер.

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

public class jResponsiveUIwEventDispatcher extends JFrame {
private boolean stop1 = false;
private boolean stop2 = false;
private JTextField tfCount1,tfCount2 ;
private int countValue1 = 1;
private int countValue2 = 1;

// Create the GUI and show it. For thread safety, this method should
// be invoked from the event-dispatching thread instead of the main thread
private void createAndShowGUI() {
Container cp = getContentPane();
cp.setLayout(new FlowLayout(FlowLayout.CENTER, 10, 10));
cp.add(new JLabel("Counter1"));
cp.add(new JLabel("Counter2"));
tfCount1 = new JTextField("" + countValue1, 10);
tfCount1.setLocation(10, 10);
tfCount2 = new JTextField("" + countValue2, 10);
tfCount1.setEditable(false);
tfCount2.setEditable(false);
cp.add(tfCount1);
cp.add(tfCount2);

final JButton btnStart1 = new JButton("Start Counting1");
final JButton btnStart2 = new JButton("Start Counting2");

cp.add(btnStart1);
cp.add(btnStart2);

btnStart1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
stop1 = false;
// start a new thread to do the counting
Thread t1 = new Thread() {
public void run() {
btnStart1.setEnabled(false);
while (!stop1) {
tfCount1.setText("" + countValue1);
countValue1++;
// suspend itself and yield control to other threads
try {
sleep(1000);
} catch (InterruptedException ex) {}
}
}
};
t1.start();
}
});

btnStart2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
stop2 = false;
// start a new thread to do the counting
Thread t2 = new Thread() {
public void run() {
btnStart2.setEnabled(false);
while (!stop2) {
tfCount2.setText("" + countValue2);
countValue2++;
// suspend itself and yield control to other threads
try {
sleep(1000);
} catch (InterruptedException ex) {}
}
}
};
t2.start();
}
});

JButton btnStop1 = new JButton("Stop Counting1");
JButton btnStop2 = new JButton("Stop Counting2");

cp.add(btnStop1);
cp.add(btnStop2);

btnStop1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
stop1 = true;
btnStart1.setEnabled(true);
}
});

btnStop2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
stop2 = true;
btnStart2.setEnabled(true);
}
});

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(300, 120);
setTitle("Counter");
setVisible(true); // show and realize the window
}

public static void main(String[] args) {
// The main thread schedules a job for the event-dispatching thread to create the GUI
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
new jResponsiveUIwEventDispatcher().createAndShowGUI();
}
});
}
}

24.10 потоки

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