Q:

Unable to Set Java Look and Feel

I have downloaded a look and feel for java. it is Quaqua. it is downloaded in ZIP format. my question is how to add this look and feel to my program? i am using NetBeans 8. i googled and found not suitable result.
So tell me proper procedure. 
Thanks.

A:

You add a jar file to classpath like any other lib and and before showing your JFrame you set lnf like this:
UIManager.setLookAndFeel(quaqualnf);
...
JFrame frame = ...

If you bothered to look on the dev guide, you'd have found this:
public class MyApplication {
     public static void main(String[] args) {

         // set system properties here that affect Quaqua
         // for example the default layout policy for tabbed
         // panes:
         System.setProperty(
            "Quaqua.tabLayoutPolicy","wrap"

         );

         // set the Quaqua Look and Feel in the UIManager
         try {
              UIManager.setLookAndFeel(
                  ch.randelshofer.quaqua.QuaquaManager.getLookAndFeel();
              );
         // set UI manager properties here that affect Quaqua
         ...
         } catch (Exception e) {
             // take an appropriate action here
             ...
         }
         // insert your application initialization code here
         ...
     }
}

