Web Reference: Mar 7, 2026 · Encapsulation means combining data and the functions that work on that data into a single unit, like a class. In Object-Oriented Programming, it helps keep things organized and secure. A class can hide the implementation part and discloses only the functionalities required by other classes. Encapsulation refers to bundling similar fields and methods together in a class. It helps to achieve data hiding. In this tutorial, we will learn about Java encapsulation with examples. Encapsulation in Java is a mechanism of wrapping the data (variables) and code acting on the data (methods) together as a single unit. In encapsulation, the variables of a class will be hidden from other classes, and can be accessed only through the methods of their current class.
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