Java Swing How to - Set step for JSpinner in Double format

Question

We would like to know how to set step for JSpinner in Double format.

Answer

import java.awt.BorderLayout;
import java.awt.Container;
/*  w w w  .  j  av a  2 s  .c  o  m*/
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JSpinner;
import javax.swing.JTextField;
import javax.swing.SpinnerNumberModel;

public class Main {
  public static void main(String args[]) {
    SpinnerNumberModel model = new SpinnerNumberModel(0.0, -1000.0, 1000.0, 0.1);
    JSpinner s = new JSpinner(model);
    JSpinner.NumberEditor editor = new JSpinner.NumberEditor(s);
    s.setEditor(editor);
    JTextField stepText = new JTextField(10);
    JButton bStepSet = new JButton("Set Step");
    bStepSet.addActionListener(e -> {
      Double val = Double.parseDouble(stepText.getText().trim());
      model.setStepSize(val);
    });
    JFrame f = new JFrame ();
    Container c = f.getContentPane();
    c.add(s);
    JPanel southPanel = new JPanel();
    southPanel.add(stepText);
    southPanel.add(bStepSet);
    c.add(southPanel, BorderLayout.SOUTH);
    f.pack();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setVisible(true);
  }
}