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+/**%0A * @author agaust%0A * @blog bloggersmart.net - python.web.id%0A */%0A%0Apublic class BicycleDemo %7B%0A    public static void main(String %5B%5D args) %7B%0A        Bicycle bike1 = new Bicycle();%0A        Bicycle bike2 = new Bicycle();%0A        %0A        bike1.changeCadance(50);%0A        bike1.speedUp(10);%0A        bike1.changeGear(2);%0A        bike1.printStates();%0A        %0A        bike2.changeCadance(50);%0A        bike2.speedUp(10);%0A        bike2.changeGear(2);%0A        bike2.changeCadance(40);%0A        bike2.speedUp(10);%0A        bike2.changeGear(3);%0A        bike2.printStates();%0A    %7D%0A%7D%0A

Create BicycleDemo.java