Question

How to write/start a class with 2 objects?

Answer 1

class Bicycle {

int cadence = 0;
int speed = 0;
int gear =
1;

void changeCadence(int newValue) {
cadence =
newValue;
}

void changeGear(int newValue) {
gear =
newValue;
}

void speedUp(int increment) {
speed = speed +
increment;
}

void applyBrakes(int decrement) {
speed = speed -
decrement;
}

void printStates() {
System.out.println("cadence:"
+
cadence + " speed:" +
speed + " gear:" + gear);
}
}

class
BicycleDemo {
public static void main(String[] args) {

// Create two
different
// Bicycle objects
Bicycle bike1 = new Bicycle();
Bicycle
bike2 = new Bicycle();

// Invoke methods on
// those
objects
bike1.changeCadence(50);
bike1.speedUp(10);
bike1.changeGear(2);
bike1.printStates();

bike2.changeCadence(50);
bike2.speedUp(10);
bike2.changeGear(2);
bike2.changeCadence(40);
bike2.speedUp(10);
bike2.changeGear(3);
bike2.printStates();
}
}