Encapsulation in Java in Details Step by Step

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Encapsulation:

Encapsulation is the process of wrap the data and code into single unit. The variables of a class will be hidden from other classes, and can be accessed by methods of their current class.

Make encapsulation in following way.

1. Declare variables as private.

2. Declare public setter and getter methods to access or modify the value.

Example:

public class Employee {

        private int id;

        private String name;

        private int age;

        public int getId() {

            return id;

        }

        public void setId(int id) {

            this.id = id;

        }

        public String getName() {

            return name;

        }

        public void setName(String name) {

            this.name = name;

        }

        public int getAge() {

            return age;

        }

        public void setAge(int age) {

            this.age = age;

       } 

}