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 on Autoboxing and Unboxing concepts of Wrapper classes, Using wrapper classes with their corresponding primitive types. This article tests your knowledge on how to use the wrapper …
OCAJP 8
OCAJP – Declare and use an ArrayList of a given type
This post is about the OCAJP exam objective “Declare and use an ArrayList of a given type“.You will be tested in the exam about various methods and syntax related to the ArrayList class. Here we would explain about the ArrayList class and its important methods. In my future posts, I would be explaining about some …
OCAJP 8 – Java 8 Date Time API
One of the new and noteworthy introduction in the Java 8 version is update of the Date Time API. Since the initial version of the Java packages, there is no standard API for calculating the date and time data. In the previous versions, there are two packages java.util and java.sql defines the date and time …