El Centro Social Security Office Notes. Hours of Social Security offices were extended in March, 2015. Almost all Social Security offices in the continental US have hours of 9:00 to noon on Wednesdays, and 9:00 to 4:00 on other weekdays. See if you can get an appointment by phone. Fridays may be less crowded.
If you create a lock on the class, then all instances of the class will share the lock. If you have 1 instance, there won't be any difference. If you have thousands of instances, they will all use the very same lock. If many threads try to acquire the lock at the same time, they will block each other out.f you create the lock on the instance, then several threads can execute the protected code as long as they operate on different instances. Here, the threads don't block each other. So this approach performs better.
The same keyword static is used a number of different ways in Java. 1. The above line of code defines a constant. The static part means that there is only one for the class. This is desirable because you could have a million objects but the constant is always the same so it is declared static because only one is needed.