Question

The issue I am running into is changing the SPinnerModel type into a double as it will be used later in the program. Also I cannot use weightSpinnerMetric outside of its method, but I am not sure on how to fix that.

Thanks once again guys.

import javax.swing.*;
import javax.swing.event.*;

public class UI  {

private JSpinner weightSpinnerMetric;

 //Need to change the weightSpinnerMetric to double and then use it here but cannot do either

private void weightSpinnerMetricStateChanged(ChangeEvent e) {
JSpinner weightSpinnerMetric = (JSpinner) e.getSource();
SpinnerModel spinnerModel = weightSpinnerMetric.getModel();
System.out.println(spinnerModel.getValue());


weightSpinnerMetric = new JSpinner(); //Spinner created here.

weightSpinnerMetric.setModel(new SpinnerNumberModel(3, 3, 31, 1));
        weightSpinnerMetric.addChangeListener(new ChangeListener() {
            @Override
            public void stateChanged(ChangeEvent e) {
                weightSpinnerMetricStateChanged(e);
                weightSpinnerMetricStateChanged(e);
            }
        });
}}

As it stands, I wish to call the spinnermodel in another method(A button) so the spinnermodel value is called when the button is pressed, for a visual example I have the following:

Answer 1

If the other method is in the same class UI, just call it?
As in:

weightSpinnerMetric.getModel().getValue();

And if you need it to be a double cast it with (double).

If the method is in another class, you should provide a none-private method in UI similar to this:

public double getCurrentWeight() {
    return (double) weightSpinnerMetric.getModel().getVale();
}

An alternative approch is to have a variable hold the current input weight, and update it in weightSpinnerMetricStateChanged instead of System.out.println(spinnerModel.getValue()) set that value to that variable.