How to Remember Checkbox Checked From Other Frame

Question

I have two jframe, one is a main frame used to call check box frame, and another one is a jframe containing checkbox.

MainFrame.java

How to remember previous checked checkbox after main frame call again the checkbox frame?

CheckBox.java

below is my button action code:

private void btn_callCheckBoxActionPerformed(
  java.awt.event.ActionEvent evt) {                                         

    //call checkbox window
    CheckBoxWindow cbw = new CheckBoxWindow();
    cbw.setVisible(true);
    cbw.setEnabled(true);

    this.setVisible(true);
    this.setEnabled(false);

}    

call mainframe from checkbox frame

private void btn_callMainFrameActionPerformed(
  java.awt.event.ActionEvent evt) {                                         

    //call main frame window
    MainPage mp = new MainPage();
    mp.setVisible(true);
    mp.setEnabled(true);
    this.setEnabled(false);
    this.setVisible(false);
}

Answer 1

you have multiple options.

1- Do not create new windows every time you click the buttons. Save the windows in variables and use setVisible(true) and setVisible(false) to show/hide them. If you hide the checkbox frame and the you show it again, the checkbox will be in the state before closing.

This something like this

 public MainPage() {
     this.checkWindow = new CheckWindow()
 }

 private void btn_callCheckBoxActionPerformed(java.awt.event.ActionEvent evt)  {                                         
        // show window
        this.checkWindow.setVisible(true);
        this.checkWindow.setEnabled(true);

        this.setVisible(true);
        this.setEnabled(false);
  }  

2.- Save and retrieve the values of the checkbox using the preferences api of java