Nested classes are classes that are declared as members of other classes or scopes. Nesting classes is one way to better organize your code. For example, say you have a non-nested class (also known as ...

Classes and objects in Java must be initialized before they are used. You’ve previously learned that class fields are initialized to default values when classes are loaded, and that objects are ...

Imagine you are an expert object-oriented Java developer who meticulously crafts code the way an artist cares for their masterpiece. You believe clean code is an absolute necessity. Classes with clear ...

Java Essentials Volume 2 provides structured pathway from Java fundamentals to advanced application development ...

Build your Java skills from the ground up by working on simple tasks and beginner-friendly projects. Challenge yourself with more complex Java problems, including those focused on multithreading and ...

The ability to write clean code is important no matter which programming language you work with. When you work in Java, it's even more pertinent. Java has long been the world's most popular ...

While the basic course is free and great for getting started, they also have a ‘Pro’ version if you want to dig deeper. It’s a solid choice if you’re totally new to programming and want a smooth, ...

The release of Java SE 15 in Sept 2020 will introduce "sealed classes" (JEP 360) as a preview feature. A sealed class is a class or interface which restricts which other classes or interfaces may ...