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How to read a line of text into a string, and how to get specific characters from it.

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

shorts What is AssertJ? Explore the Java test with elegance Fluent API wit Java Test, which is the formula of AssertJ. #Java ...

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

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

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

The do/while loop is guaranteed to execute the loop body at least once.

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

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

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

JEP 401 proposes to introduce primitive classes to Java and the JVM - as the name suggests, they're basically classes that ...

Is there any way to initialize an List in Java? Short answer: Kinda. Java doesn't provide a native initialization for Lists, so we ...

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

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

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

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

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 ...

JEP 402 proposes to unify primitives like `int` with objects by modeling primitive values as instances of primitive classes ...

Every programmer should know this easy trick for naming functions irrespective of the programming language he uses. Naming ...

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