JSpinner Example
This JSpinner example allows the user to select between a number of garment sizes. The JSpinner is useful for providing a large number of values from which the user chooses just one. Only one value is displayed at a time; up and down arrows enable the user to make a selection.
It therefore takes up very little screen space.
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// JSpinner and SpinnerList Model Example
import java.awt.*;
import javax.swing.*;
import javax.swing.event.*;
class JSpinnerExample {
public static void main(String[] args) {
String[] sizes = {"small","medium","large","XL","XXL"};
final SpinnerListModel model = new SpinnerListModel(sizes);
JSpinner jSpinner = new JSpinner(model);
model.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent e) {
System.out.println(model.getValue());
}
});
JFrame frame = new JFrame();
frame.getContentPane().add(jSpinner);
frame.pack();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
}
12 A SpinnerListModel is constructed from a string array. This is used as a parameter for the JSpinner constructor.
14 The JSpinner constructor takes a SpinnerModel as parameter. In this case a SpinnerListModel. Other possible models are SpinnerDateModel and SpinnerNumberModel.