In Java, variables are containers that store data values, such as numbers, text, or Boolean values. Java variables are categorized into different types based on their scope, lifetime, and usage, helping programmers manage data efficiently and write organized, maintainable code

This reduces verbosity and improves readability while maintaining static type safety. Variables in Java are core building blocks used to store and manage data in a program. Understanding the types of variables in Java, such as local, instance, and static, is essential for writing clean, efficient, and organized code.

Example: This example demonstrates the use of instance variables, which are declared within a class and initialized via a constructor, with default values for uninitialized primitive types. Static variables in Java are variables declared with the static keyword inside a class but outside any method.

Local Variable Type Inference (var) Starting in Java 10, you can use the keyword var instead of the type for local variables under certain conditions. To use this feature, you just type var instead of the primitive or reference type. The formal name of this feature is local variable type inference.