Code To Implement
MapHof
map
class: |
MapHof.java |
![Java.png](/cse425s/images/thumb/2/26/Java.png/32px-Java.png) |
methods: |
map |
package: |
hof.map.util.exercise |
source folder: |
src/main/java |
public static <T, R> ImmutableList<R> map(Function<T, R> f, ImmutableList<T> list)
SML List map
MapHofApps
class: |
MapHofApps.java |
![Java.png](/cse425s/images/thumb/2/26/Java.png/32px-Java.png) |
methods: |
mapToLengths mapToStrictlyLessThan |
package: |
hof.map.client.exercise |
source folder: |
src/main/java |
mapToLengths
public static ImmutableList<Integer> mapToLengths(ImmutableList<String> texts)
Use the String class's length() method.
mapToStrictlyLessThan
public static ImmutableList<Boolean> mapToStrictlyLessThan(ImmutableList<Integer> xs, int threshold)
FilterHof
filter
class: |
FilterHof.java |
![Java.png](/cse425s/images/thumb/2/26/Java.png/32px-Java.png) |
methods: |
filter |
package: |
hof.filter.util.exercise |
source folder: |
src/main/java |
public static <E> ImmutableList<E> filter(Predicate<E> predicate, ImmutableList<E> list)
SML List filter
FilterHofClients
class: |
FilterHofClients.java |
![Java.png](/cse425s/images/thumb/2/26/Java.png/32px-Java.png) |
methods: |
filterWordsWhichContainAllVowels filterEvens |
package: |
hof.filter.client.exercise |
source folder: |
src/main/java |
public static ImmutableList<String> filterWordsWhichContainAllVowels(ImmutableList<String> words)
public static ImmutableList<Integer> filterEvens(ImmutableList<Integer> xs)
FoldHof
class: |
FoldHof.java |
![Java.png](/cse425s/images/thumb/2/26/Java.png/32px-Java.png) |
methods: |
foldLeft foldRight |
package: |
hof.fold.util.exercise |
source folder: |
src/main/java |
foldLeft
public static <A, B> A foldLeft(BiFunction<A, B, A> f, A acc, ImmutableList<B> list)
foldLeft(f, initial_value, [x1, x2, ..., xn])
- returns
f(xn,...,f(x2, f(x1, initial_value))...)
or initial_value
if the list is empty.
SML List foldl
foldRight
public static <A, B> A foldRight(BiFunction<A, B, A> f, A acc, ImmutableList<B> list)
foldRight(f, initial_value, [x1, x2, ..., xn])
- returns
f(x1, f(x2, ..., f(xn, init)...))
or initial_value
if the list is empty.
SML List foldr
Fold Clients
class: |
FoldHofClients.java |
![Java.png](/cse425s/images/thumb/2/26/Java.png/32px-Java.png) |
methods: |
sum countBetweenMinAndMaxExclusive |
package: |
hof.map.client.exercise |
source folder: |
src/main/java |
sum
public static int sum(ImmutableList<Integer> xs)
countBetweenMinAndMaxExclusive
public static int countBetweenMinAndMaxExclusive(int min, int maxExclusive, ImmutableList<Integer> xs)
FindHof
find
class: |
FindHof.java |
![Java.png](/cse425s/images/thumb/2/26/Java.png/32px-Java.png) |
methods: |
find |
package: |
hof.find.util.exercise |
source folder: |
src/main/java |
public static <E> Optional<E> find(Predicate<E> predicate, ImmutableList<E> list)
SML List map
FindHofClients
class: |
FindHofClients.java |
![Java.png](/cse425s/images/thumb/2/26/Java.png/32px-Java.png) |
methods: |
findFirstPalindrome |
package: |
hof.find.client.exercise |
source folder: |
src/main/java |
findFirstPalindrome
public static Optional<String> findFirstPalindrome(ImmutableList<String> words)
Test
class: |
HigherOrderFunctionTestSuite.java |
![Junit.png](/cse425s/images/thumb/6/64/Junit.png/48px-Junit.png) |
package: |
hof |
source folder: |
src/test/java |
Map
class: |
MapTestSuite.java |
![Junit.png](/cse425s/images/thumb/6/64/Junit.png/48px-Junit.png) |
package: |
hof.map |
source folder: |
src/test/java |
Filter
class: |
FilterTestSuite.java |
![Junit.png](/cse425s/images/thumb/6/64/Junit.png/48px-Junit.png) |
package: |
hof.filter |
source folder: |
src/test/java |
Fold
class: |
FoldTestSuite.java |
![Junit.png](/cse425s/images/thumb/6/64/Junit.png/48px-Junit.png) |
package: |
hof.fold |
source folder: |
src/test/java |
Filter
class: |
FindTestSuite.java |
![Junit.png](/cse425s/images/thumb/6/64/Junit.png/48px-Junit.png) |
package: |
hof.find |
source folder: |
src/test/java |