How to dynamically change a variable name or variable type on Eclipse?

Issue

I can't use eval() and window[], because they don't work for me for some reason.

Here I'm trying to make a method to make the creation of a new JButton to be easier and more space efficient since I will be making a LOT of the same buttons but with a slight difference. I just don't know how to change the Class (type) and class (variable name).

public void makeButton(JButton specificButton, JFrame frame, String text, int[] border) {
        specificButton = new JButton();
        specificButton.setText(text);
        frame.add(specificButton);
        specificButton.setBounds(border[0], border[1], border[2], border[3]);
        
        
        specificButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                frame.setVisible(false);
                myClass myclass = new myClass();// Example
                myclass...
            }
        });
    }

I found no other potential option.

Solution

One way to do this would be to pass the action as a Runnable to the method, something like:

public JButton makeButton(JFrame frame, String text, Runnable runnable) {

    JButton button = new JButton();
    button.setText(text);

    frame.add(button);

    button.addActionListener(event -> {
      frame.setVisible(false);

      runnable.run();
    });

    return button;
}

Which you would use like this:

JButton button1 = makeButton(frame, "button 1", () -> {
    // TODO action for button 1
 });

JButton button2 = makeButton(frame, "button 2", () -> {
   // TODO action for button 2
});

Answered By - greg-449