Listing 1 
public class Automobile {
	private String manufacturerName;

	public Automobile() {
	}

	public String getManufacturerName() {
		return manufacturerName;
	}

	public void setManufacturerName(String manufacturerName) {
	this. manufacturerName = manufacturerName;
}

public void drive() {
	… drive behavior …
}
}

Listing 2
public class Automobile {
	
… other variables…
	
public void brake()
{
	… brake behavior …
}

… other methods …
}

public class DriversEducationAutomobile extends Automobile {
	public void brakeUsingInstructorsPedal()
	{
		… specialized Instructor braking behavior …
		brake();
	}
}

Listing 3
public class AutomobileWithABS extends Automobile {
public void brake() {
		if (some condition warrants engaging the ABS system)
		{
			triggerABS();
		}
		else
		{
			super.brake();
		}
}	
	
	private void triggerABS() {
		… implementation to engage the ABS system …
	}
	
}
Listing 4
public class Automobile {
	… other variables …
	
	private int rpms;

	… other methods …

	public int getRPMs() {
		return rpms;
	}

	private void setRPMs(int rpms) {
		this.rpms = rpms;
	}
}

Listing 5
	public class Automobile implements Fuelable
	{
		… other methods
		public void refuel(double amount)
		{
			… some implementation
		}
}
 
	public class Truck implements Fuelable
	{
		… other methods
		public void refuel(double amount)
		{
			… some implementation
		}
}