Author name: Aditi Malhotra

This post is about the OCAJP exam objective “Apply the static keyword to methods and fields.“You will be tested in the exam about difference between static variables and instance variables. If two objects are trying to modify the static and instance variables , What will be the output ?. Here we would explain about static variables, static methods and difference between static variables, instance variables. 25 Free Mock Exam Questions We can apply static keyword to variables , methods , blocks,classes, interfaces. Applying static keyword to classes, interfaces is out of scope for OCAJP. It is in OCPJP. Static blocks […]

This post is about the following OCAJP Java certification exam objectives: (7.3) Differentiate between the type of a reference and the type of an object. (7.4) Determine when casting is necessary. The above two objectives in the Java certification exam would test your knowledge on type casting. If you want to be more confident on answering all the questions, then you should have good understanding on type hierarchy, down casting (casting a sub class to super class) and up casting (casting a super class to sub class). Note that OCAJP exam would not check your knowledge on the casting in