Changing a JLabel's Value from a JSlider's Value

Question

I have a single JPanel that contains a JSlider and a JLabel. I want to configure it so that when the JSlider\'s value is being changed by the user, that new value is reflect

Answer 1

You don't need to add a change listener to the JLabel. If your JLabel is a member field of the class that contains the code, you can refer to the JLabel within the JSlider's change listener, like so:

public class Test() {
    private JLabel label;

    private void setup() {
        label = new JLabel();
        JSlider scaleSlider = new JSlider();
        scaleSlider.addChangeListener(new ChangeListener() {

            public void stateChanged(ChangeEvent event) {
                int currentTime = ((JSlider)event.getSource()).getValue();
                label.setText(currentTime);
            }
        }
    }
}

You can refer to any outer class's field within any inner-class, even the anonymous inner-class ChangeListener you've declared on the scaleSlider.