What is encapsulation in Java?

Encapsulation in Java is a fundamental concept of object-oriented programming that helps in bundling the data (variables) and methods (functions) that operate on the data into a single unit known as a class. It restricts direct access to some of an object's components, which can prevent the accidental modification of data. In Java, encapsulation is achieved using access modifiers like private, protected, and public.

By using encapsulation, we can control the visibility of the class's data and methods, thus improving the security and maintainability of the code.

Example of Encapsulation in Java


        public class Student {
            // Private variables
            private String name;
            private int age;

            // Public method to set name
            public void setName(String name) {
                this.name = name;
            }

            // Public method to get name
            public String getName() {
                return name;
            }

            // Public method to set age
            public void setAge(int age) {
                if (age > 0) {
                    this.age = age;
                }
            }

            // Public method to get age
            public int getAge() {
                return age;
            }
        }

        public class Main {
            public static void main(String[] args) {
                Student student = new Student();
                student.setName("John Doe");
                student.setAge(20);

                System.out.println("Name: " + student.getName());
                System.out.println("Age: " + student.getAge());
            }
        }

What is encapsulation in Java?

Example of Encapsulation in Java

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What is encapsulation in Java?

Example of Encapsulation in Java

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