Write a class FaultyAdder with methods
(possibly incorrect) to sum numbers.
By using JUnit and the relative support in the
NetBeans IDE, develop a test class for FaultyAdder
with at least two distinct tests; then, run the test session.
A dormitory object can be defined so
that a Java thread can “toSleep” in it up to
a wake-up event.
Design and implement a Dormitory class with a
given number of sleeping seats to be specified at construction
time; provide it with the following methods:
toSleep(), to be called to sleep in one of the
available seats; in case no seat is available, it will block
so to access the dormitory in future sleeping turns;
trySleep(), to be called to sleep in the current
sleeping turn; in case no seat is available, it doesn’t block,
returning false, otherwise it succeeds and
returns true;
wakeUpAll() to wake up the current occupants and
free their seats; in practice, a single sleeping turn is
delimited by two successive invocations of wakeUpAll().
Sketch also a driver program to show how this synchronization
mechanism can be actually used.
By using JUnit and the relative support in the
NetBeans IDE, develop a test class for Dormitory,
trying to write tests for the provided synchronization
mechanism.