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public interface Iterator{ public boolean hasNext(); publicObject next();}public interface Container{ publicIterator getIterator();}publicclassNameRepository implements Container{ publicString names[]={"Robert","John","Julie","Lora"}; @Override publicIterator getIterator(){ returnnewNameIterator(); } privateclassNameIterator implements Iterator{//分离了集合对象的遍历行为，抽象出一个迭代器类来负责 int index; @Override public boolean hasNext(){ if(index < names.length){ returntrue; } returnfalse; } @Override publicObject next(){ if(this.hasNext()){ return names[index++]; } return null; } }}publicclassIteratorPatternDemo{ publicstaticvoid main(String[] args){ NameRepository namesRepository =newNameRepository(); for(Iterator iter = namesRepository.getIterator(); iter.hasNext();){ String name =(String)iter.next(); System.out.println("Name : "+ name); } }}标签：
原文地址：http://www.cnblogs.com/Doing-what-I-love/p/5621162.html
