A Java abstract class is a class that can't be instantiated. That means you cannot create new instances of an abstract class. It works as a base for subclasses. You should learn about Java Inheritance before attempting this challenge.
Following is an example of abstract class:
abstract class Book{
String title;
abstract void setTitle(String s);
String getTitle(){
return title;
}
}
If you try to create an instance of this class like the following line you will get an error:
Book new_novel=new Book();
You have to create another class that extends the abstract class. Then you can create an instance of the new class.
Notice that setTitle method is abstract too and has no body. That means you must implement the body of that method in the child class.
In the editor, we have provided the abstract Book class and a Main class. In the Main class, we created an instance of a class called MyBook. Your task is to write just the MyBook class.
Your class mustn't be public.
in java
```java
class MyBook extends Book {
void setTitle(String s) {
title = s;
}
}
```
To create the `MyBook` class, you need to extend the `Book` abstract class and provide an implementation of the `setTitle` method. Here's how you can do it:
```java
class MyBook extends Book {
// Implementing the abstract method of the Book class
void setTitle(String s) {
this.title = s; // Assigning the passed title value to the instance variable
}
}
```
Make sure to include this code in the provided "Main" class as per the instructions.
To solve this challenge, you need to create a class called MyBook that extends the abstract class, Book.
Here is an example implementation for the MyBook class:
class MyBook extends Book {
// Implementing the abstract method setTitle from the Book class
void setTitle(String s) {
// Set the title of the book
title = s;
}
}
In the above code snippet, we define the MyBook class that extends the abstract class Book. We then provide an implementation for the abstract method setTitle. In this case, we set the value of the title variable to the given string.
Note that the MyBook class should not be declared as public.