Get the variable associated with a JPanel component from a component array

Question

Say I have a JPanel with buttons (and other things) as components and I make an array of those components as such:

JPanel panel = new JPanel();

JButton btn1 = new JButton();
JButton btn2 = new JButton();
JButton btn3 = new JButton();

panel.add(btn1);
panel.add(btn2);
panel.add(btn3);

Component[] things = panel.getComponents();`

How can I get the names of the variables associated with the components in the array? I'm looking to grab "btn1", "btn2", etc...

for (int i = 0; i < things.length; i++) {

*I need this to return the names of the variables associated with the components*

}

Why do you think you need the variable name of each button. Sounds like a design problem to me. — camickr
– camickr, Commented Jan 3, 2024 at 15:09
It may very well be a design problem, though it may not. I'm trying to implement a user interface with formatted JPanels. The panels already have JButtons and I'm trying to create a method that will assign certain actions to certain buttons (in the main method), or also create buttons and assign actions to the buttons when the JPanel is instantiated. This is a perplexing problem. — Mr. Mutant
– Mr. Mutant, Commented Jan 16, 2024 at 17:25

Mr. Mutant · Accepted Answer · 2024-01-02 21:25:17Z

1

I figured it out using reflection:

Field[] fields = panel.getClass().getDeclaredFields();
        for (Field f : fields) {
            if (f.getType().equals(JButton.class)) {
                System.out.println(f.getName());
            }
        }

answered Jan 2, 2024 at 21:25

Mr. Mutant

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