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Mooc "Immersive Object Programming with Pharo" - English voice over Pharo (http://pharo.org) is a pure dynamic and reflective ...

Creating your first class and instantiating objects from it in Java.

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

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

What's going on behind the scenes when you call a method in Java?

You can have multiple methods with the same name as long as the number and/or types of the parameters is different.

A brief description of what the Java compiler is on about.

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

Caveats; wonderful justifications why Exceptions aren't side effects, at least in Haskell.

What's the “correct“ way to indent? Where should you put braces in your code? All of this is part of a Java programming style ...

shorts Java Compact Constructor on record allows you to create validation on your Java classes easily. You can have consistency ...

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 ...

Find out how to specify which classes can and cannot access the methods and properties in other classes. Note: narration at 1:54 ...

How variables and assignments work in Java.

Formatting numbers for money and other purposes using NumberFormat How to Round a Number to 2 Decimal Places in Java: ...

shorts To start using Java reflection and create its annotation, remember that there are retention and target annotations. But what ...

There are different kinds and subclasses of Exception. This video describes the Exception hierarchy and talks about checked vs.

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

shorts Java record is a powerful resource to include your favorite feature, mainly when discussing immutable instances. Yes, you ...

Draw a UML diagram and write code to implement a Java class that simulates a computer-controlled Toaster.

Creating Class Diagrams.

Learn how to write and run Java programs and use the DrJava interaction panel. Download here: ...

shorts Java reflection is excellent for creating extensibility on runtime. If you're using Jakarta EE, MicroProfile, or Spring, you're ...

Find out what happens when you throw an exception in a series of method calls several levels deep. Program that demonstrates ...

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