Difference between revisions of "Concurrent Stack Assignment"

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=Previous Exercise=
 
=Previous Exercise=
[[Stack_Assignment|NotThreadSafeStack]]
+
Recall that you have built a [[Stack_Assignment|NotThreadSafeStack]].
  
 
=Motivation=
 
=Motivation=

Revision as of 19:41, 7 April 2023

Previous Exercise

Recall that you have built a NotThreadSafeStack.

Motivation

We will build a thread-safe implementation of a Stack using synchronized methods.

Background

Implicit Locks

synchronized methods

Code To Implement

ConcurrentStack

To be @ThreadSafe, one must hold intrinsic lock (via synchronized) on the ConcurrentStack instance for each of the methods which read and/or write to mutable data.

class: ConcurrentStack.java Java.png
methods: constructor
push
peek
pop
package: stack.concurrent.exercise
source folder: student/src/main/java

constructor and instance variables

Be sure to initialize whatever state you need to implement a mutable thread-safe Stack.

push

peek

pop

Testing

class: __ConcurrentStackTestSuite.java Junit.png
package: stack.concurrent.exercise
source folder: testing/src/test/java

Pledge, Acknowledgments, Citations

file: concurrent-stack-pledge-acknowledgments-citations.txt

More info about the Honor Pledge