这是一种解决方法：
import javax.swing.*;
import javax.swing.plaf.*;
import java.awt.event.*;
public class JTabBug{
public static void main(String[] args) {
JTabbedPane jTabbedPane = new JTabbedPane()
{
@Override
public String getToolTipText(MouseEvent e)
{
int index = ((TabbedPaneUI)ui).tabForCoordinate(this, e.getX(), e.getY());
if (index != -1)
{
JComponent component = (JComponent)getTabComponentAt(index);
return component.getToolTipText();
}
return super.getToolTipText(e);
}
};
ToolTipManager.sharedInstance().registerComponent(jTabbedPane);
jTabbedPane.addTab("Red", new JLabel("Roses"));
jTabbedPane.addTab("Blue", new JLabel("Skies"));
jTabbedPane.addTab("Green", new JLabel("Grass"));
for (int i = 0; i < jTabbedPane.getTabCount(); i++) {
JLabel tabComponent = new JLabel(jTabbedPane.getTitleAt(i));
tabComponent.setToolTipText("Tip: " + tabComponent.getText());
ToolTipManager.sharedInstance().unregisterComponent(tabComponent);
jTabbedPane.setTabComponentAt(i, tabComponent);
}
JFrame jFrame = new JFrame("Testing");
jFrame.add(jTabbedPane);
jFrame.setSize(400, 500);
jFrame.setVisible(true);
jFrame.setDefaultCloSEOperation(JFrame.EXIT_ON_CLOSE);
}
}
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