Problem Description

Write a Java program to demonstrate encapsulation using private variables and public getter/setter methods.

Code

EncapsulationExample.java

class Person {
    private String name;
    private int age;

    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;
    }
}

public class EncapsulationExample {
    public static void main(String[] args) {
        Person p1 = new Person();
        p1.setName("John");
        p1.setAge(30);

        System.out.println("Name: " + p1.getName());
        System.out.println("Age: " + p1.getAge());
    }
}

Output

Name: John
Age: 30

Explanation

Encapsulation: Wrapping data (variables) and code (methods) together as a single unit.
Data Hiding: Variables are declared private so they cannot be accessed directly from outside the class.
Getters and Setters: Public methods provided to access and update private variables.

Java Program to Demonstrate Encapsulation

Problem Description

Code

Output

Explanation

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