Difference between revisions of "Optional Assignment"
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| − | + | Note this studio is '''required'''. It helps us gain experience using [https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html java.util.Optional<T>]. | |
| − | [https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html java.util.Optional<T>] | ||
=Code To Implement= | =Code To Implement= | ||
==Max== | ==Max== | ||
| − | {{JavaToImplement|Max|max|optional. | + | {{JavaToImplement|Max|max|optional.exercise}} |
| − | <nowiki>public static Optional<Integer> maximum(ImmutableList<Integer> xs)</nowiki> | + | <nowiki>public static Optional<Integer> maximum(ImmutableList<Integer> xs)</nowiki> |
| + | |||
| + | Given a list of Integers, return [https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html#of-T- Optional.of] the maximum value in that list if it exists, otherwise return [https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html#empty-- Optional.empty]. | ||
=Test= | =Test= | ||
| − | {{TestSuite|MaxTestSuite|optional. | + | |
| + | NOTE: in order to test this studio you must first complete the main (non-app) part of the [[ImmutableList_Assignment|ImmutableList<E> studio]]. | ||
| + | |||
| + | {{TestSuite|MaxTestSuite|optional.exercise}} | ||
Latest revision as of 05:12, 8 September 2022
Note this studio is required. It helps us gain experience using java.util.Optional<T>.
Code To Implement
Max
| class: | Max.java |  |
| methods: | max | |
| package: | optional.exercise | |
| source folder: | src/main/java |
public static Optional<Integer> maximum(ImmutableList<Integer> xs)
Given a list of Integers, return Optional.of the maximum value in that list if it exists, otherwise return Optional.empty.
Test
NOTE: in order to test this studio you must first complete the main (non-app) part of the ImmutableList<E> studio.
| class: | MaxTestSuite.java |  |
| package: | optional.exercise | |
| source folder: | src/test/java |
