Answer:
Check the explanation
Explanation:
x, y, z = "abc", "15", "boo"
errors = []
try:
x = int(x)
except ValueError:
errors.append('x')
try:
y = int(y)
except ValueError:
errors.append('y')
try:
z = int(z)
except ValueError:
errors.append('z')
if len(errors) == 0:
print(x+y+z)
else:
print('bad value(s) in: ' + ' '.join(errors))
If the algorithm is changed for the operations at layer k, the services at k1 will change since the services will be operated after the layer. For the services at k-1, they will not be affected since they are prior to the algorithms.<span />
Answer:
Pair Programming
Explanation:
In Extreme Programming XP, pair programming is a practice in which two programmers work together in a pair at one machine, when writing a code.
One of the two programmers is called the "driver" or developer who writes the code and supervises all the changes made to the program.
The other one is called an "navigator" or observer who provides ideas on how the program should be written, observes or reviews it the program, identify the issues or errors in the code, help in code simplifications.
The two developers implements the program, do coding, review the program and check each other's work. They both are required to be equally skilled in order to implement and test the code. This improves the process of the software development. By working in a pair and reviewing and testing the code together, they develop a better code.
Answer:
B. until another thread issues a notify on the semaphore.
Explanation:
A semaphore is a variable that is shared between threads and is not negative. It also acts as a calling mechanism that uses two atomic operations wait and signal for synchronization of processes.
A thread that is waiting for a process can be signaled by another thread.
A semaphore puts a thread to sleep until another thread issues a notify on the semaphore.
The wait operation will get a semaphore or otherwise wait if the busy S semaphore is available.
The signal operation will release a semaphore or wake a process if there is a thread waiting for S.
The
piston engine uses the crankshaft to convert the reciprocating motion of the
piston into rotary motion.
<span>The
crankshaft is used to convert reciprocating motion of the piston into rotary
motion, while the conversion process is called torque, which is a twisting
force. Aside from crankshaft, there are a total of four parts of the engine
that work together in order to convert the reciprocating motion into rotary
motion namely cylinder, or also called the chamber of the piston, the piston itself,
and the connecting rod.</span>
