Types of variable in Java A variable that contains a whole number, as in the previous examples, is called an “integer” or “int” for short. However, this is just one type of variable in Java.

In a previous tutorial we introduced the basics of pattern matching and its integration with switch expressions. Now, we'll dive deeper into more advanced Java pattern-matching techniques and ...

Java Shell lets you redeclare a variable with a different type. For example, ... It’s also important to understand how Unicode affects Java compilation.

Method and variable handles vs. Java reflection. To truly understand MethodHandles and VarHandles—what they do and why they are useful—it’s helpful to know a few things about reflection in Java.

The convention for packages is different from the Java naming conventions used for variables, methods and reference types. Packages are always written in lowercase letters, with a dot between words. A ...