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interface iVehicle { |
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public void drive(); |
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public void stop(); |
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} |
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class Car implements iVehicle { |
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public void drive() { |
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print("Driving...\n"); |
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} |
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public void stop() { |
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print("Stopping...\n"); |
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} |
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} |
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class MyCar extends Car { |
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public void drive() { |
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print("Driving my car...\n"); |
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} |
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} |
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class Program { |
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public void driveCar(iVehicle $vehicle) { |
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$vehicle->drive(); |
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$vehicle->stop(); |
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} |
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public void main() { |
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object $car = new Car(); |
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object $mycar = new MyCar(); |
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$this->driveCar($car); |
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$this->driveCar($mycar); |
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} |
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} |