Java

This post is about the OCAJP exam objective “Apply encapsulation principles to a class”. In exam, You will asked like “How to make this class strongly encapsulated?”. In this article, we would explain encapsulation concept according to OCAJP exam and answer all your queries related to the encapsulation concepts. OCAJP 8 Free Practice Questions What is Encapsulation Encapsulation is a process of binding the data (variables) and code acting on the data (methods) together as a single unit. Consider the example When you login into your Gmail or Yahoo mail account, there will be lot of back end process on […]

This post is about the OCAJP exam objective “Use a switch statement“. You will be mainly tested in the exam about allowed data type variables for switch and Question contains switch statement with compile time errors, you need to correct those errors by selecting the given options. Here, We would explain each and every important points regarding switch statement. If you have any questions regarding this article, please write it in the comments section. TRY NOW : 25 Free OCAJP Mock Exam Questions How to use switch statement? Here are the few important points about switch statement in Java. A

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