Java Tutorial : Java Runtime Polymorphism(version1)

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Java Tutorial : Java Runtime Polymorphism(version1) 

Java Tutorial : Java Runtime Polymorphism(version1) 

Vehicle.java

public class Vehicle
{
    public void drive()
    {
        System.out.println("Driving vehicle ...");
    }
}

class Car extends Vehicle
{
    @Override
    public void drive()
    {
        System.out.println("Driving car...");
    }
}

class Truck extends Vehicle
{
    @Override
    public void drive()
    {
        System.out.println("Driving truck...");
    }

    public void load()
    {
        System.out.println("Loading truck...");
    }
}

RunTimePolymorphismDemo.java

public class RunTimePolymorphismDemo
{

    public static void main(String[] args)
    {
        Vehicle vehicleRef = new Vehicle();
        vehicleRef.drive();

        vehicleRef = new Car();
        vehicleRef.drive();

        vehicleRef = new Truck();
        vehicleRef.drive();

        // Compile time error
        // vehicleRef.load();

        Truck truckRef = new Truck();
        truckRef.load();
    }

}

Output

Driving vehicle ...
Driving car...
Driving truck...
Loading truck...

Click the below link to download the code:
https://sites.google.com/site/javaee4321/java/PolymorphismDemo_Runtime_App.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/PolymorphismDemo_Runtime_App

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/2ec4ef86a93fffce49e990abd3b81708f562c200/BasicJava/PolymorphismDemo_Runtime_App/?at=master

See also:

All JavaEE Viedos Playlist

All JavaEE Viedos

All JAVA EE Links

Servlets Tutorial

All Design Patterns Links

JDBC Tutorial

Java Collection Framework Tutorial

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