OOP - Inheritance

Inheritance is about inheriting the properties and methods in sub classes to reuse them.

Define a class Engine

public class Engine {
    public static String getCapacity(){
        return "2.5";
    }
}

Define a class Vehicle which extends Engine class.

public class Vehicle extends Engine {
  public static void main(String args[]) {
    System.out.println("Vehicle capacity is "+ getCapacity()+" and fuel type is "+ getFuelType());
  }
  public static String getFuelType(){
        return "Diesel";
    }
}

We can observe main method uses methods in Engine class

output will be:

Vehicle capacity is 2.5 and fuel type is Diesel