= JDialog =

<code java>
package com.acme.showcase;

public class dlgAbout extends javax.swing.JDialog {

    /**
     * Creates new form dlgAbout
     */
    public dlgAbout(java.awt.Frame parent, boolean modal) {
        super(parent, modal);
        initComponents();
    }
    
    private void btnOKActionPerformed(java.awt.event.ActionEvent evt) {                                      
        // TODO add your handling code here:
        this.setVisible(false);  // close current window
    }
}
</code>

In other window or menu, call dialog to open it:
<code java>
package com.acme.showcase;

public class frmMain extends javax.swing.JFrame {

    //...
       
    private void mnuAboutActionPerformed(java.awt.event.ActionEvent evt) {                                             
        dlgAbout dlg = new dlgAbout(this, true);
        dlg.setVisible(true);
    } 
}
</code>