The Car
class (subclass) inherits the attributes and methods from the Vehicle
class (superclass):
class Vehicle {
protected String brand = "Ford"; // Vehicle attribute
public void honk() { // Vehicle method
System.out.println("Tuut, tuut!");
}
}
class Car extends Vehicle {
private String modelName = "Mustang"; // Car attribute
public static void main(String[] args) {
// Create a myCar object
Car myCar = new Car();
// Call the honk() method (from the Vehicle class) on the myCar object
myCar.honk();
// Display the value of the brand attribute (from the Vehicle class) and the value of the modelName from the Car class
System.out.println(myCar.brand + " " + myCar.modelName);
}
}
The extends
keyword extends a class (indicates that a class is inherited from another class).
In Java, it is possible to inherit attributes and methods from one class to another. We group the "inheritance concept" into two categories:
To inherit from a class, use the extends
keyword.
Read more about inheritance in our Java Inheritance Tutorial.
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