Difference between revisions of "Iterable Immutable List Assignment"
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=Studio To Revisit= | =Studio To Revisit= | ||
| − | In this studio we will complete the <code>DefaultImmutableList</code> implementation from the [[ImmutableList_Assignment|ImmutableList studio]]. | + | In this studio we will complete the <code>DefaultImmutableList</code> implementation from the [[ImmutableList_Assignment|ImmutableList studio]]. |
| + | |||
| + | ==ImmutableList== | ||
| + | The [https://www.cse.wustl.edu/~cosgroved/courses/cse425s/spring20/apidocs/immutable/list/core/ImmutableList.html ImmutableList] interface extends [https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html Iterable] which has one method: [https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html#iterator-- iterator()]. | ||
<nowiki>public interface ImmutableList<E> extends Iterable<E> { | <nowiki>public interface ImmutableList<E> extends Iterable<E> { | ||
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==Iterable== | ==Iterable== | ||
| − | + | [https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html interface java.lang.Iterable<T>] | |
| − | + | #[https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html#iterator-- Iterator<T> iterator()] | |
==Iterator== | ==Iterator== | ||
| − | + | [https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html interface java.util.Iterator<T>] | |
| − | + | #[https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html#hasNext-- boolean hasNext()] | |
| − | + | #[https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html#next-- T next()] | |
=Code To Implement= | =Code To Implement= | ||
Revision as of 16:34, 24 April 2020
Contents
Studio To Revisit
In this studio we will complete the DefaultImmutableList implementation from the ImmutableList studio.
ImmutableList
The ImmutableList interface extends Iterable which has one method: iterator().
public interface ImmutableList<E> extends Iterable<E> {
E head();
ImmutableList<E> tail();
boolean isEmpty();
}
Iterable
interface java.lang.Iterable<T>
Iterator
interface java.util.Iterator<T>
Code To Implement
DefaultImmutableList
| class: | DefaultImmutableList.java |  |
| methods: | iterator | |
| package: | immutable.list.assignment | |
| source folder: | src/main/java |
iterator
public Iterator<E> iterator()
Example
| class: | ListsExample.java |  |
| package: | immutable.list.example | |
| source folder: | src/main/java |
The code:
ImmutableList<Integer> numbers = Lists.brackets(4, 66, 99);
for (int i : numbers) {
System.out.println(i);
}
produces:
4 66 99
Test
| class: | IterableAssignmentTestSuite.java |  |
| package: | immutable.list.assignment | |
| source folder: | src/test/java |
