Java Swing - JSlider Example
Temperature Converter - (Celsius-Fahrenheit)
NetBeans - Internet & Web Programming Lab
Source code:
/* * sw5.java * * Created on 1 Oct, 2011, 10:04:07 PM */ package swingexamples; /** * * @author gcecse */ public class sw5 extends javax.swing.JFrame { /** Creates new form sw5 */ public sw5() { initComponents(); } /** 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. */ @SuppressWarnings("unchecked") // <editor-fold defaultstate="collapsed" desc="Generated Code"> private void initComponents() { jSlider1 = new javax.swing.JSlider(); jLabel1 = new javax.swing.JLabel(); jSlider2 = new javax.swing.JSlider(); jLabel2 = new javax.swing.JLabel(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); jSlider1.setMajorTickSpacing(5); jSlider1.setMinorTickSpacing(1); jSlider1.setOrientation(javax.swing.JSlider.VERTICAL); jSlider1.setPaintLabels(true); jSlider1.setPaintTicks(true); jSlider1.setValue(0); jSlider1.addChangeListener(new javax.swing.event.ChangeListener() { public void stateChanged(javax.swing.event.ChangeEvent evt) { jSlider1StateChanged(evt); } }); jSlider2.setMajorTickSpacing(5); jSlider2.setMaximum(250); jSlider2.setMinorTickSpacing(1); jSlider2.setOrientation(javax.swing.JSlider.VERTICAL); jSlider2.setPaintLabels(true); jSlider2.setPaintTicks(true); jSlider2.setValue(0); jSlider2.addChangeListener(new javax.swing.event.ChangeListener() { public void stateChanged(javax.swing.event.ChangeEvent evt) { jSlider2StateChanged(evt); } }); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addGap(48, 48, 48) .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 78, javax.swing.GroupLayout.PREFERRED_SIZE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(jSlider1, javax.swing.GroupLayout.PREFERRED_SIZE, 116, javax.swing.GroupLayout.PREFERRED_SIZE) .addGap(123, 123, 123) .addComponent(jLabel2, javax.swing.GroupLayout.PREFERRED_SIZE, 78, javax.swing.GroupLayout.PREFERRED_SIZE) .addGap(3, 3, 3) .addComponent(jSlider2, javax.swing.GroupLayout.PREFERRED_SIZE, 117, javax.swing.GroupLayout.PREFERRED_SIZE) .addContainerGap(65, Short.MAX_VALUE)) ); layout.setVerticalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addContainerGap() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jSlider2, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 668, Short.MAX_VALUE) .addComponent(jSlider1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 668, Short.MAX_VALUE) .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 54, javax.swing.GroupLayout.PREFERRED_SIZE))) .addGroup(layout.createSequentialGroup() .addGap(25, 25, 25) .addComponent(jLabel2, javax.swing.GroupLayout.PREFERRED_SIZE, 47, javax.swing.GroupLayout.PREFERRED_SIZE))) .addContainerGap()) ); pack(); }// </editor-fold> private void jSlider1StateChanged(javax.swing.event.ChangeEvent evt) { // TODO add your handling code here: int c=0,f=0; if(!jSlider1.getValueIsAdjusting()) { c=jSlider1.getValue(); f=c*9/5+32; jLabel1.setText(Integer.toString(c)+" C"); jSlider2.setValue(f); jLabel2.setText(Integer.toString(f)+" F"); } } private void jSlider2StateChanged(javax.swing.event.ChangeEvent evt) { // TODO add your handling code here: int c=0,f=0; if(!jSlider2.getValueIsAdjusting()) { f=jSlider2.getValue(); c=(f-32)*5/9; jLabel2.setText(Integer.toString(f)+" F"); jSlider1.setValue(c); jLabel1.setText(Integer.toString(c)+" C"); } } /** * @param args the command line arguments */ public static void main(String args[]) { java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new sw5().setVisible(true); } }); } // Variables declaration - do not modify private javax.swing.JLabel jLabel1; private javax.swing.JLabel jLabel2; private javax.swing.JSlider jSlider1; private javax.swing.JSlider jSlider2; // End of variables declaration }Output:
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