Earning this certificate helps Java developers increase the security of their software and reduce vulnerabilities in the programs they develop.

Encapsulation is one of the basic characteristics of object-oriented programming. However, the access modifiers provided by common object-oriented languages do not help much because they only ...

In this lab, students gain a working knowledge of data hiding, encapsulation and the use of the protected access modifier in Java and C++. The goal of the class is to understand how to secure data in ...

Constructor overloading in Java occurs when a class has multiple constructors, each with a separate and unique method signature. Overloading constructors in Java provides a variety of benefits to both ...

Here's how to make classes, fields, methods, constructors, and objects work together in your Java programs.

Sealed classes in Java let developers limit the creation and use of subclasses and preserve the class hierarchy. Here is how sealed classes in Java work.

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs.