OOP (course 3): Inheritance, Abstract Classes, Interfaces and other amazing things

Abstract Classes

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Challenge 2 / 3

Look at the following code:

abstract class AbstractShip
{
    private $strength = 0;

    abstract public function getType()
    {
        return 'ship';
    }

    public function setStrength($number)
    {
        $this->strength = $number;
    }

    public function getStrength()
    {
        return $this->strength;
    }
}

class EmpireShip extends AbstractShip
{
    public function getType()
    {
        return 'empire ship';
    }
}

class RebelShip extends AbstractShip
{
}

What error will you see?

Fatal error: Class RebelShip contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (AbstractShip::getType)

Warning: Class RebelShip cannot be an empty class

Fatal error: Abstract function AbstractShip::getType() cannot contain body

No errors, this is a valid code that will work fine!

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