Java Swing GUI

JSpinner – Java Swing – Example

In this tutorial, we are going to see an example of JSpinner in Java Swing. JSpinner is part of javax.swing package. JSpinner contains a single line of input that can be a number or an object in an ordered sequence. The user can manually enter data into the spinner’s text field. The spinner is sometimes preferred because it does not need a drop-down list. Spinners contain up/down arrows to display the previous and next item when pressed.


JSpinner constructors class:
JSpinner Constructors
JSpinner() Creates an empty spinner with an initial value set to zero and no constraints.
JSpinner(SpinnerModel model) Creates a spinner with a specified spinner template transmitted as argument.

Commonly used methods:

  • setValue(Object v): Defines the value of the spinner on the object transmitted in argument.
  • getValue(): Returns the current value of the spinner.
  • getPreviousValue(): Returns the previous value of the spinner.
  • getNextValue(): Returns the next value of the spinner.
  • SpinnerListModel(List l): Creates a spinner model with elements from the list l. This spinner model can be used to define as a spinner model.
  • SpinnerNumberModel(int val, int max, int min, int step): Returns a spinner pattern whose initial value is set to ‘val’, with a minimum and maximum value, and a step value defined.



Example of JSpinner in Java Swing:
import javax.swing.*;  
import javax.swing.event.*;

public class Main 
  public static void main(String[] args) 
    JFrame frame = new JFrame();  
    final JLabel label = new JLabel();          
    SpinnerModel model = new SpinnerNumberModel(
                2,  //initial value
                0,  //minimum value
                20, //maximum value
                1   //step
    JSpinner sp = new JSpinner(model); 
    //when the up/down arrows is pressed
    sp.addChangeListener(new ChangeListener() {
      public void stateChanged(ChangeEvent e) {
        label.setText("Value : " + ((JSpinner)e.getSource()).getValue());


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