[java] Array of a Class

public class Hoop
{
    public static void main(String [] args)
    {
        CollisionObject [] bullet = new CollisionObject [50];
        for(int n = 0; n < 50; n++)
        {
            bullet[n].isActive = false;
        }
    }
}

public class CollisionObject
{
    public boolean isActive;
    public int XPosition;
    public int YPosition;
    public int width;
    public int height;
}