Pessoal, bom dia.
Quando uma classe.java é compilada, é criado classe.class
Quando uma classe.java possui “subclasses” classes internas a essa classe, é criado classe$arquivoInterno.class, classe$arquivoInterno2.class…
Mas caí em uma situação que não compreendo. Código abaixo.
[code]package davmail.tray;
import davmail.Settings;
import davmail.ui.AboutFrame;
import davmail.ui.SettingsFrame;
import org.apache.log4j.Logger;
import org.apache.log4j.Priority;
import org.apache.log4j.lf5.LF5Appender;
import org.apache.log4j.lf5.LogLevel;
import org.apache.log4j.lf5.viewer.LogBrokerMonitor;
import javax.swing.;
import java.awt.;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
/**
-
Tray icon handler based on java 1.6
*/
public class AwtGatewayTray implements DavGatewayTrayInterface {
protected AwtGatewayTray() {
}private static TrayIcon trayIcon = null;
private static Image image = null;
private static Image image2 = null;
private static Image inactiveImage = null;
private boolean isActive = true;public Image getFrameIcon() {
return image;
}public void switchIcon() {
isActive = true;
SwingUtilities.invokeLater(new Runnable() {
public void run() {
if (trayIcon.getImage() == image) {
trayIcon.setImage(image2);
} else {
trayIcon.setImage(image);
}
}
});
}public void resetIcon() {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
trayIcon.setImage(image);
}
});
}public void inactiveIcon() {
isActive = false;
SwingUtilities.invokeLater(new Runnable() {
public void run() {
trayIcon.setImage(inactiveImage);
}
});
}public boolean isActive() {
return isActive;
}public void displayMessage(final String message, final Priority priority) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
if (trayIcon != null) {
TrayIcon.MessageType messageType = null;
if (priority == Priority.INFO) {
messageType = TrayIcon.MessageType.INFO;
} else if (priority == Priority.WARN) {
messageType = TrayIcon.MessageType.WARNING;
} else if (priority == Priority.ERROR) {
messageType = TrayIcon.MessageType.ERROR;
}
if (messageType != null) {
trayIcon.displayMessage(“DavMail gateway”, message, messageType);
}
trayIcon.setToolTip(“DavMail gateway \n” + message);
}
}
});
}public void init() {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}protected void createAndShowGUI() {
// set native look and feel
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {
DavGatewayTray.warn(“Unable to set system look and feel”, e);
}// get the SystemTray instance SystemTray tray = SystemTray.getSystemTray(); image = DavGatewayTray.loadImage("tray.png"); image2 = DavGatewayTray.loadImage("tray.png"); inactiveImage = DavGatewayTray.loadImage("trayinactive.png"); // create a popup menu PopupMenu popup = new PopupMenu(); final AboutFrame aboutFrame = new AboutFrame(); // create an action settingsListener to listen for settings action executed on the tray icon ActionListener aboutListener = new ActionListener() { public void actionPerformed(ActionEvent e) { aboutFrame.update(); aboutFrame.setVisible(true); } }; // create menu item for the default action MenuItem aboutItem = new MenuItem("About..."); aboutItem.addActionListener(aboutListener); popup.add(aboutItem); final SettingsFrame settingsFrame = new SettingsFrame(); // create an action settingsListener to listen for settings action executed on the tray icon ActionListener settingsListener = new ActionListener() { public void actionPerformed(ActionEvent e) { settingsFrame.reload(); settingsFrame.setVisible(true); } }; // create menu item for the default action MenuItem defaultItem = new MenuItem("Settings..."); defaultItem.addActionListener(settingsListener); popup.add(defaultItem); MenuItem logItem = new MenuItem("Show logs..."); logItem.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { Logger rootLogger = Logger.getRootLogger(); LF5Appender lf5Appender = (LF5Appender) rootLogger.getAppender("LF5Appender"); if (lf5Appender == null) { lf5Appender = new LF5Appender(new LogBrokerMonitor(LogLevel.getLog4JLevels()) { protected void closeAfterConfirm() { hide(); } }); lf5Appender.setName("LF5Appender"); rootLogger.addAppender(lf5Appender); } lf5Appender.getLogBrokerMonitor().show(); } }); popup.add(logItem); // create an action exitListener to listen for exit action executed on the tray icon ActionListener exitListener = new ActionListener() { public void actionPerformed(ActionEvent e) { SystemTray.getSystemTray().remove(trayIcon); //noinspection CallToSystemExit System.exit(0); } }; // create menu item for the exit action MenuItem exitItem = new MenuItem("Exit"); exitItem.addActionListener(exitListener); popup.add(exitItem); /// ... add other items // construct a TrayIcon trayIcon = new TrayIcon(image, "DavMail Gateway", popup); // set the TrayIcon properties trayIcon.addActionListener(settingsListener); // ... // add the tray image try { tray.add(trayIcon); } catch (AWTException e) { DavGatewayTray.warn("Unable to create tray", e); } // display settings frame on first start if (Settings.isFirstStart()) { settingsFrame.setVisible(true); }}
}
[/code]
Compilando essa classe, é criado AwtGatewayTray.class, AwtGatewayTray$1.class, AwtGatewayTray$2.class …
Alguém saberia me explicar por que? o que leva o compilador a criar esses arquivos?
Agradeço desde já.