There are 2 code examples for javax.swing.JWindow.

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Project Name: weka Package: weka.gui.beans

Source Code: MetaBean.java (Click to view .java file)

Method Code:
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private void showPreview(){
  if (m_previewWindow == null) {
    JLabel jl=new JLabel(m_subFlowPreview);
    jl.setLocation(0,0);
    m_previewWindow=new JWindow();
    m_previewWindow.getContentPane().add(jl);
    m_previewWindow.validate();
    m_previewWindow.setSize(m_subFlowPreview.getIconWidth(),m_subFlowPreview.getIconHeight());
    m_previewWindow.addMouseListener(new MouseAdapter(){
      public void mouseClicked(      MouseEvent e){
        m_previewWindow.dispose();
        m_previewWindow=null;
      }
    }
);
    m_previewWindow.setLocation(getParent().getLocationOnScreen().x + getX() + getWidth() / 2 - m_subFlowPreview.getIconWidth() / 2,getParent().getLocationOnScreen().y + getY() + getHeight() / 2 - m_subFlowPreview.getIconHeight() / 2);
    m_previewWindow.setVisible(true);
    m_previewTimer=new javax.swing.Timer(8000,new java.awt.event.ActionListener(){
      public void actionPerformed(      java.awt.event.ActionEvent e){
        if (m_previewWindow != null) {
          m_previewWindow.dispose();
          m_previewWindow=null;
          m_previewTimer=null;
        }
      }
    }
);
    m_previewTimer.setRepeats(false);
    m_previewTimer.start();
  }
}

Project Name: weka Package: weka.gui.beans

Source Code: MetaBean.java (Click to view .java file)

Method Code:
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public void actionPerformed(java.awt.event.ActionEvent e){
  if (m_previewWindow != null) {
    m_previewWindow.dispose();
    m_previewWindow=null;
    m_previewTimer=null;
  }
}