How to encapsulate classes in java

In the first step, we first need to understand what encapsulation in Java refers to. Encapsulation is a method of packaging and hiding the implementation details of an abstract interface. It has the advantages of reducing coupling, the internal structure of the class can be modified, and member variables are accurately controlled. As shown in the figure below: #The second step is to introduce the encapsulation steps in java. Open eclipse. The encapsulation will first privatize the variables through private and restrict access to class attributes

, as shown in the following figure:

The third step is to set the external access interface for each attribute through the set and get methods. If the external attributes of the class need to be changed, these public methods need to be used

, as follows Pictured:

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