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Primitives (int, double, etc.) have values stored in their memory locations. Objects have references to the memory where the data ...

When you pass an object to a method, you are passing a copy of the *reference* to that object. That lets you update an object's ...

Android malware creators constantly struggle to devise innovative methods to obscure apps and impede reverse engineering.

Quick overview of classes, objects, attributes, constructors, and methods.

What's going on behind the scenes when you call a method in Java? Note: in this video, the call stack grows upwards, like a stack ...

ArrayLists let you store an arbitrary number of items, unlike Arrays, which have a fixed length. Here are some of the most-used ...

A discussion of Java memory management with reminders about references.

Descubre cómo implementar pruebas unitarias en tus proyectos de Java usando Spring y Mockito de manera fácil y efectiva.

This video shows the building blocks you use for every Java program you'll write in this course. One additional note: The program ...

Arrays are reference variables, which means simple assignment doesn't make a copy of the values.

In diesem Video zeige ich euch einen weiteren Aspekt der Objektorientierung in JavaScript und stelle euch die Methoden vor, mit ...

Learn how to use the "extends" and "super" keywords to allow one class to inherit all of another class's methods and fields.

Purdue AP Computer Science A.

A continuation of a discussion of object references and an overview of Java interfaces.

Java Tutorial: Java Data Types We already covered theory concepts about different data types. In this video we will look on how to ...

Find out the limits of using casting when working with polymorphism.

Here are the most common methods in Java's Math class.

How to get something better than the name of a class and its memory reference when you print an object reference.

ArrayLists let you store an arbitrary number of items, unlike Arrays, which have a fixed length. Here are some of the most-used ...

In Java, you can have a two-dimensional array where each row has a different number of elements. This is called a ragged array.