Listening for Changes to the Value in a JSpinner Component

   

import javax.swing.JSpinner;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

public class Main {
  public static void main(String[] argv) throws Exception {
    JSpinner spinner = new JSpinner();
    spinner.addChangeListener(new SpinnerListener());

    spinner.setValue(new Integer(100));
  }
}

class SpinnerListener implements ChangeListener {
  public void stateChanged(ChangeEvent evt) {
    JSpinner spinner = (JSpinner) evt.getSource();

    // Get the new value
    Object value = spinner.getValue();
  }
}

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Listening for Changes to the Value in a JSpinner Component : Spinner « Swing JFC « Java

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