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****************************************************************************/

//! [4]
class Point() {
    var x;
    var y;
    function manhattanLength() { return x + y; }
}
//! [4]


//! [6]
class Car {
    var regNumber;
    function Car(regnr) {
        regNumber = regnr;
    }
}
var car = new Car("ABC 123");
//! [6]


//! [7]
function Car(regnr) {
    this.regNumber = regnr;
}
var car = new Car("ABC 123");
//! [7]


//! [9]
class Car {
    var regNumber;
    function Car(regnr) {
        regNumber = regnr;
    }
    function toString() {
        return regNumber;
    }
}
//! [9]


//! [12]
class GasolineCar extends Car {
    function GasolineCar(regnr) {
        Car(regnr);
    }
    function toString() {
        return "GasolineCar(" + regNumber + ")";
    }
}
//! [12]


//! [14]
class Car {
    static var globalCount = 0;
}     
print(Car.globalCount);
//! [14]