Ramya Subraamanian wrote:are the topics "try with resources" , "multi-catch clause" , "UML modeling" and "class relationships" included in OCA -8 Exam ?
try-with-resources, multi-catch clause and UML are not on the OCAJP8 certification exam. And regarding the class relationships
you should only know about IS-A and HAS-A relationships for the OCAJP8 certification exam. Especially the first one is very important, because you need to know for example when a cast will not compile, will cause a ClassCastException to be thrown and when it is successfully executed.
Both UML modeling and class relationships are appendixes in the study guide, so that's additional content to help you in your preparation. But these are not actual exam objectives, so you can read the appendixes but you don't need to study them.
Hope it helps!
Kind regards,
Roel