Hi Amal.
Am glad to know that Whizlabs SCJP simulator was helpful in your exam preparation.
For the SCWCD 1.4 exam, grab a copy of the "Head First
Servlets and JSP" or the Manning's "SCWCD 1.4 study guide" based on your preferred style of learning. Finally practice with Whizlabs SCWCD 1.4 simulator and am sure you can repeat your success story.
All the best.