Java

Blog Java

OCAJP – Wrapper Classes in Java

This post is about the OCAJP exam objective "Develop code that uses wrapper classes such as Boolean, Double, and Integer". In the exam you will be mainly tested about Autoboxing and Unboxing concepts of Wrapper classes, Using wrapper classes with their corresponding primitive types. Try our free test for OCAJP 8 exam now!! What is Wrapper Classes? Generally when we work with...

OCAJP – HOW TO Apply encapsulation principles to a class?

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...

Top 6 Resources for OCPJP 8 Certification

The OCPJP 8 certification is exam number 1Z0-809 and it is known as ‘Oracle Certified Professional Java Programmer II’ exam. It can be taken only after having completed the exam 1Z0-808 or the ‘Oracle Certified Associate Java SE 8 Programmer’ exam. The OCPJP certification or the ‘Oracle certified Professional Java programmer’ is the flagship certification for Java professionals. It...

OCAJP – How to use a switch statement?

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...

What are the differences between SCJP and OCJP?

SCJP and OCJP are referring to the same exams. Sun Certified Java Programmer (SCJP) is renamed as Oracle Certified Java Programmer(OCJP) when Oracle has acquired Sun Micro Systems. Before that, SCJP word is synonymous to Java Certification exams and it is one of the most popular certification for Java developers. That is the reason still people call that exam...

OCAJP – Static Keyword in Java

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...

Top 5 resources to prepare for OCEJWCD 6 Certification

The ‘Java web component developer certification exam’ or the OCEJWCD 6 certification is one of more advanced Java certifications from Oracle. We have had already discussed the important steps in becoming OCEJWCD 6 certified in an earlier blog post. The first step that was stated was to collect the resources for the exam. This blog post will focus on...

OCAJP – Casting in Java

This post is about the following OCAJP 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...

OCAJP – Creating and Manipulating Strings

This post is about the OCAJP exam objective “Creating and Manipulating Strings”. You will be mainly tested in the exam about String Immutability behavior. You will also be tested in the exam about various methods and syntax related to the String class. Here we would explain about the String class and important methods. It is very important to understand...

What are the good books for preparing OCPJP 7 certification exam?

In our previous article we have written about the good books that are useful for preparing OCPJP 8 exam. If you are planning to prepare for the OCPJP eam, then OCPJP 8 and OCPJP 7 exams are most popular exams and their objectives are very much closer. However, we would recommend you to prepare for the most recent exam...

Please wait...