Best books about JAVA programming:

• Head First JAVA, Second Editon
• Effective Java Programming Language Guide
• Professional Java, JDK 5 Edition
• Ivor Horton's Beginning Java 2, JDK 5 Edition

JAVA JSlide Color

The following code adds color to JSlide. User may customize the color showing on JSlide. This example has following Java files:

• MThumbSliderExample.java
• MThumbSlider.java
• MetalMThumbSliderUI.java
• MThumbSliderAdditional.java
• MThumbSliderAdditionalUI.java
• AssistantUIManager.java
  
  
  
  import javax.swing.*;
  import javax.swing.plaf.*;
  

  public class AssistantUIManager {

  public static ComponentUI createUI(JComponent c) {
  String componentName = c.getClass().getName();
  
  int index = componentName.lastIndexOf(".") +1;
  StringBuffer sb = new StringBuffer();
  sb.append( componentName.substring(0, index) );
  
  
  
  String lookAndFeelName = UIManager.getLookAndFeel().getName();
  if (lookAndFeelName.startsWith("CDE/")) {
  lookAndFeelName = lookAndFeelName.substring(4,lookAndFeelName.length());
  }
  sb.append( lookAndFeelName );
  sb.append( componentName.substring(index) );
  sb.append( "UI" );
  
  ComponentUI componentUI = getInstance(sb.toString());
  
  if (componentUI == null) {
  sb.setLength(0);
  sb.append( componentName.substring(0, index) );
  sb.append( "Basic");
  sb.append( componentName.substring(index) );
  sb.append( "UI" );
  componentUI = getInstance(sb.toString());
  }
  
  return componentUI;
  }
  
  private static ComponentUI getInstance(String name) {
  try {
  return (ComponentUI)Class.forName(name).newInstance();
  } catch (ClassNotFoundException ex) {
  } catch (IllegalAccessException ex) {
  ex.printStackTrace();
  } catch (InstantiationException ex) {
  ex.printStackTrace();
  }
  return null;
  }

  
  public static void setUIName(JComponent c) {
  String key = c.getUIClassID();
  String uiClassName = (String)UIManager.get(key);
  
  if (uiClassName == null) {
  String componentName = c.getClass().getName();
  int index = componentName.lastIndexOf(".") +1;
  StringBuffer sb = new StringBuffer();
  sb.append( componentName.substring(0, index) );
  String lookAndFeelName = UIManager.getLookAndFeel().getName();
  if (lookAndFeelName.startsWith("CDE/")) {
  lookAndFeelName = lookAndFeelName.substring(4,lookAndFeelName.length());
  }
  sb.append( lookAndFeelName );
  sb.append( key );
  UIManager.put(key, sb.toString());
  }
  }
  

  public AssistantUIManager() {
  }
  
  
  }