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 ...

Do you need to know how to sort Java objects in a collection, array, or map? Here's how to use the Comparable and Comparator interfaces and avoid ClassCastExceptions. Programmers frequently need to ...

A monthly overview of things you need to know as an architect or aspiring architect. Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with ...

A monthly overview of things you need to know as an architect or aspiring architect. Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with ...

Persistent Java objects simplify the storage and exchange of complex object structures. Poet Software's FastObjects j2 is a pure Java implementation of an object database management system (ODBMS). It ...

An array in Java is a type of variable that can store multiple values. It stores these values based on a key that can be used to subsequently look up that information. Arrays can be useful for ...

In this post, we will learn how to call a method in Java. This is a useful “chunk” of code that you can call from anywhere else in your program, thus preventing you from needing to write out the same ...

The insurgence of Spring Boot as the go-to framework for microservices development has spawned renewed interest in the fundamentals of the Spring framework. Folks are particularly interested in the ...

Community driven content discussing all aspects of software development from DevOps to design patterns. Anyone who sees the const keyword in Java would logically assume its original intention was to ...