How to set the checkbox setSelected() of child components using getComponent()

Question

I'm trying to set all the checkboxes' value to setSelected(false). These checkboxes are from different subpanels that has other subpanels. getComponents(panelName) only gets the components contained on it but not every subpanel/child panel of child panel... and so on.

In the above,allPermissionsJPanel is the parent panel. settingsButtonPanel and cardContainerPanel as first level subpanel and I want every single JCheckBox to be set to false.

How do I do that? I tried using getComponents() but it's not returning all the checkboxes from subpanel of subpanels.

This is my code.

List<Component> allPermissionsCheckboxes =fm.getComponentsAsList(allPermissionsJPanel);


        for(Component c: allPermissionsCheckboxes){
            if(c instanceof JCheckBox){
                ((JCheckBox) c).setSelected(false);
            }
        }

I tried checking other methods related to getComponents() but I didn't find a method that goes through every subpanel of subpanel so I can check if it's an instanceof a JCheckBox. Any suggestions?

Answer 1

You'll want to implement this as a recursive method that iterates through the component hierarchy looking for check boxes and performing setSelected(false).

The method could look something like this:

public void deselectAllCheckBoxes(Component panel) {
    List<Component> allComponents = fm.getComponentsAsList(panel);

    for (Component c : allComponents) { // Loop through all the components in this panel
        if (c instanceof JCheckBox) { // if a component is a check box, uncheck it.
            ((JCheckBox) c).setSelected(false);
        } else if (c instanceof JPanel) { // if a component is a panel, call this method
            deselectAllCheckBoxes(c);     // recursively.
    }
}

Then all you have to do is call deselectAllCheckBoxes(allPermissionsPanel);