Java JSpinner.NumberEditor with custom format
import java.awt.FlowLayout; import javax.swing.JComponent; import javax.swing.JFrame; import javax.swing.JSpinner; import javax.swing.SpinnerModel; import javax.swing.SpinnerNumberModel; public class Main extends JFrame { public Main() { super("java2s.com"); setDefaultCloseOperation(EXIT_ON_CLOSE); setLayout(new FlowLayout()); SpinnerModel model = new SpinnerNumberModel(50, 0, 100, .25); JSpinner spinner = new JSpinner(model); JComponent editor = new JSpinner.NumberEditor(spinner, "#,##0.###"); spinner.setEditor(editor);/* www.jav a2 s. c o m*/ getContentPane().add(spinner); } public static void main(String[] args) { Main frame = new Main(); frame.pack(); frame.setVisible(true); } }