Community driven content discussing all aspects of software development from DevOps to design patterns. The Java String printf method can be confusing at first, but it greatly simplifies how you ...

Community driven content discussing all aspects of software development from DevOps to design patterns. Follow these steps to find the length of a String in Java: Declare a variable of type String ...

Generics make your code more flexible and easier to read, and they help you avoid ClassCastExceptions at runtime. Get started with this introduction to using generics with the Java Collections ...

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 ...

Java is one of the most in-demand programming languages in the world and one of the two official programming languages used in Android development (the other being Kotlin). Developers familiar with ...

If I didn't cover something you want to know about or you find another problem, please open an issue on github. The Unix shell is one of my favorite inventions ever. It's genius, plain and simple. The ...

There are many reasons you might find yourself needing to create an image gallery – whether it’s to show off album covers for a music app, to present feature images for articles in a feed, or to ...