Java is an object-oriented programming language that uses classes to store data and provide methods to access and manipulate this data. In this course, you will learn how to create and use methods to manipulate the data inside a class. First, you will learn about Java methods, accessor methods, and mutator methods and how they are used in Java classes. Next, you will learn about describe overloading in Java and when to use it should be used. Next, you will learn about interfaces and how they are used to specify the behavior that a Class must implement. Finally, you will learn about the static keyword and how it can be applied to a method in a Class. This course is one of a collection of courses that prepares learners for Oracle’s 1Z0-811: Java Certified Foundations Associate certification.