Since Java 21, wrapper classes have played an increasingly sophisticated role in Java’s type system. Here’s everything you ...

The Java language includes a String class to represent strings. You declare a string using the type String , and initialize it with a quoted string, a sequence of characters contained within ...

When writing a Java application which relies heavily on a JSON API, it’s almost always necessary to deserialize the JSON data into native Java classes. The process goes something like this: ...

In Java, it is considered best practice to camel case when choosing class names with the first word capitalized. Camel case simply means that you remove all spaces and use capitalization for each ...

The Java input/output (I/O) facilities provide a simple, standardized API for reading and writing character and byte data from various data sources. This article explores the I/O classes ...

Quite often, a Java class simply represents data. In a data transfer class, no methods are required, the class has no need to support future extensibility and the data itself is immutable for the life ...

Sealed classes make Java an even more powerful and expressive language and set the stage for even more sophisticated techniques such as pattern matching, which we'll explore in a subsequent article. A ...