package chapter8;

import java.util.*;

import java.util.function.*;

class MyInts implements Iterable<Integer>

{

private int[] array;

public MyInts(int... a)

{

array = Arrays.copyOf(a,a.length);

}

public PrimitiveIterator<Integer,IntConsumer> iterator()

{

return new IntIter();

}

private class IntIter implements

PrimitiveIterator<Integer,IntConsumer>

{

private int cursor;

public IntIter()

{

cursor = 0;

}

@Override

public void forEachRemaining(IntConsumer c)

{

while (hasNext())

{

c.accept(array[cursor]);

cursor++;

}

}

@Override

public boolean hasNext() { return cursor < array.length; }

@Override

public Integer next()

{

int i = 0;

if (hasNext())

{

i = array[cursor];

cursor++;

}

return i;

}

}

}

public class TestMyInts

{

public static void main(String[] args)

{

MyInts my = new MyInts(1, 2, 3, 4, 5);

my.forEach(x -> System.out.println(x));

System.out.println();

my.iterator().forEachRemaining((IntConsumer)x ->

System.out.println(x));

}

}