Iterable Immutable List Assignment

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>

1. Iterator<T> iterator()

Iterator

interface java.util.Iterator<T>

1. boolean hasNext()
2. T next()

Example

DoubleRange

The DoubleRange warm up to gain experience implementing an Iterable<T> without simply containing a List<T> which holds the values. Further, you can gain experience creating instances of an anonymous class.

Example

class:	Mary Berry.java
package:	immutable.list.example
source folder:	src/main/java

The code:

ImmutableList<Integer> numbers = Lists.brackets(4, 66, 99);
for (Integer i : numbers) {
	System.out.println(i);
}

produces:

4
66
99

Test

class:	IterableAssignmentTestSuite.java
package:	immutable.list.assignment
source folder:	src/test/java

class:	ImmutableListIteratorMethodTestSuite.java
package:	immutable.list.assignment
source folder:	src/test/java