How to set Nimbus as look and feel in Java GUI

Recently,in the Java SE Update N, Nimbus was provided as one of the bundled look and feels. It is a good looking L&F and if someone has worked in the new Solaris then one can understand what Nimbus is all about.
To use Nimbus in your Java application , the below code will work:-
try {

UIManager.setLookAndFeel( "com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel");
}
catch(Exception e)
{

}
This is a straight way to use Nimbus, however the problem with this code is that though it will work now, its a possibility that in Java 7, this way of using Nimbus can create problem as the location of Nimbus L&F class can change.

So a better way of using Nimbus is to find all the installed L&Fs by using UIManager.getInstalledLookAndFeels() ,then check if Nimbus is present and then use the getClassName to invoke the L&F.

The below steps will make it clear:-

UIManager.LookAndFeelInfo plafinfo[] = UIManager.getInstalledLookAndFeels();
boolean nimbusfound=false;
int nimbusindex=0;

for (int look = 0; look < plafinfo.length; look++) {
if(plafinfo[look].getClassName().toLowerCase().contains("nimbus"))
{
nimbusfound=true;
nimbusindex=look;
}
}

try {

if(nimbusfound)
{
UIManager.setLookAndFeel(plafinfo[nimbusindex].getClassName());
}
else

UIManager.setLookAndFeel(
UIManager.getCrossPlatformLookAndFeelClassName());

}
catch(Exception e)
{
}

By making use of this code, we make sure that our application will be able to use the Nimbus L&F even if the location of Nimbus L&F class changes in future version of Java.
Hope you liked the above information!!