java protected

1/* similar to private keyword, but also lets both:
2  - subclasses
3  - classes in same package
4  access the variable, method or constructor */
5
6class Superclass {
7  protected int myNumber = 5;
8}
9
10class Subclass extends SuperClass {
11  // has access to myNumber
12}
13
14class InAnotherPackage {
15  // doesn't have access to myNumber
16}

1//The protected keyword is an access modifier used for attributes, 
2//methods and constructors, 
3//making them accessible in the same package and subclasses.
4
5class Person {
6  protected String fname = "John";
7  protected String lname = "Doe";
8  protected String email = "john@doe.com";
9  protected int age = 24;
10}
11
12class Student extends Person {
13  private int graduationYear = 2018;
14  public static void main(String[] args) {
15    Student myObj = new Student();
16    System.out.println("Name: " + myObj.fname + " " + myObj.lname);
17    System.out.println("Email: " + myObj.email);
18    System.out.println("Age: " + myObj.age);
19    System.out.println("Graduation Year: " + myObj.graduationYear);
20  }
21}