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//: innerclasses/Sequence.java

package innerclasses; /* Added by Eclipse.py */

// Holds a sequence of Objects.

interface Selector {

boolean end();

Object current();

void next();

}

public class Sequence {

private Object[] items;

private int next = 0;

public Sequence(int size) { items = new Object[size]; }

public void add(Object x) {

if(next < items.length)

items[next++] = x;

}

private class SequenceSelector implements Selector {

private int i = 0;

public boolean end() { return i == items.length; }

public Object current() { return items[i]; }

public void next() { if(i < items.length) i++; }

}

public Selector selector() {

return new SequenceSelector();

}

public static void main(String[] args) {

Sequence sequence = new Sequence(10);

for(int i = 0; i < 10; i++)

sequence.add(Integer.toString(i));

Selector selector = sequence.selector();

while(!selector.end()) {

System.out.print(selector.current() + " ");

selector.next();

}

}

} /* Output:

0 1 2 3 4 5 6 7 8 9

*///:~