How to Count Number of Instances of a Class

Question

Can anyone tell me how to count the number of instances of a class?

Here\'s my code

public class Bicycle {

    //instance variables
    public int          


        

Answer 1

why not using a static counter?

public class Bicycle {

    private static int instanceCounter = 0;

    //instance variables
    public int gear, speed, seatHeight;
    public String color;

    //constructor
    public Bicycle(int gear, int speed, int seatHeight, String color) {
        gear = 0;
        speed = 0;
        seatHeight = 0;
        color ="Unknown";      
instanceCounter++;
    }

    public int countInstances(){
        return instanceCounter;
    }

........