Fork Loop Assignment

Motivation

There are many incantations of the fork_loop. We gain experience with selecting the right one for two scenarios.

Code To Use

FJ

class FJ<E>

join_fork_loop(iterable, task)

join_fork_loop(returnValueComponentType, array, task)

Code To Implement

Echoes

class:	Echoes.java
methods:	toEchoes
package:	forkloop.group
source folder:	student/src/main/java

toEchoes

method: public static List<String> toEchoes(List<String> texts) (parallel implementation required)

for each text in parallel, produce text + " " + text.

	Right Tool For The Job Requirement
	The toEchoes method accepts a List<String> parameter and returns a List<String>. List<E> is an Iterable<E>, so instances of List<E> can be passed to join_fork_loop(iterable, task).

client

class:	EchoClient.java	DEMO:
methods:	main
package:	forkloop.client
source folder:	src/main/java

SquareRoots

class:	SquareRoots.java
methods:	toSquareRoots
package:	forkloop.group
source folder:	student/src/main/java

toSquareRoots

method: public static Double[] toSquareRoots(Double[] values) (parallel implementation required)

	Right Tool For The Job Requirement
	The method toSquareRoots accepts an array parameter and returns an array. join_fork_loop(returnValueArrayCreator, array, task) will perform exactly what we want, but we need to also pass an array creator. How do you tersely specify an returnValueArrayCreator for Double[]? Spoiler    Double[]::new

client

class:	SquareRootClient.java	DEMO:
methods:	main
package:	forkloop.client
source folder:	src/main/java

Testing

class:	_ForkLoopTestSuite.java
package:	forkloop.group
source folder:	testing/src/test/java