JSlider with double values?

Question

Hi All.
Is is possible to create JSliders that use double instead of int?
I need the values to be from 0 to 1, incremented by 0.1.
I have searched but haven't found a solution.
Anyone know of anything?
Cheers.

Answer 1

JSlider doesn't use int. It uses a Hashtable which is filled with JComponent's vs int. You can put whatever you want (say icons) there. By default the tabel holds JLabel's of int.
here is smal piece of code to get what you want (I setup a simple frame in NetBeans and added few lines)
import java.awt.Font;
import java.text.*;
import java.util.*;
import javax.swing.*;
public class SliderFrame extends javax.swing.JFrame {
    /** Creates new form SliderFrame */
    public SliderFrame() {
        initComponents();
        //prepare labels, the only hand edited piece
        Format f = new DecimalFormat("0.0");
        Hashtable<Integer, JComponent> labels = new Hashtable<Integer, JComponent>();
        for(int i=0;i<=10;i++){
            JLabel label = new JLabel(f.format(i*0.1));
            label.setFont(label.getFont().deriveFont(Font.PLAIN));
            labels.put(i,label);
        slider.setLabelTable(labels);
        //end of my own code, the rest is done by NetBeans
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {
        slider = new javax.swing.JSlider();
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        slider.setMajorTickSpacing(1);
        slider.setMaximum(10);
        slider.setPaintLabels(true);
        slider.setPaintTicks(true);
        slider.setPreferredSize(new java.awt.Dimension(400, 46));
        getContentPane().add(slider, java.awt.BorderLayout.CENTER);
        pack();
    }// </editor-fold>
     * @param args the command line arguments
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new SliderFrame().setVisible(true);
    // Variables declaration - do not modify
    protected javax.swing.JSlider slider;
    // End of variables declaration
}