ID generator for the Objects created

Question

I need a class which creates Objects assigning an ID to each Object created. This ID is as usual an int attribute to the class. I want this value (ID) to be increased each t

Answer 1

I would suggest to use AtomicInteger, which is thread-safe

class MyObject
{
    private static AtomicInteger uniqueId=new AtomicInteger();
    private int id;

    MyObject()
    {
       id=uniqueId.getAndIncrement();
    }

}