请教：一道面试题。

[liying1120]

写一个deleteElementByPattern方法，实现从Set<String>mySet中删除为String pattern的对象。

[liying1120]

怎么没人回呢？

[yktd26]

	public static void deleteElementByPattern(Set<String> mySet,String pattern){		
			Iterator<String> i = mySet.iterator();			
			while (i.hasNext()){	
				if (((String)i.next()).matches(pattern))
					i.remove();
			}		
	}

[yktd26]

强制转型这里不需要

	public static void deleteElementByPattern(Set<String> mySet,String pattern){		
			Iterator<String> i = mySet.iterator();			
			while (i.hasNext()){	
				if (i.next().matches(pattern))
					i.remove();
			}		
	}

[liying1120]

public static void deleteElementByPattern (Set<String>mySet,String pattern){
Pattern p = Pattern.compile(pattern);
Iterator i = mySet.iterator();
while (i.hasNext()){

Matcher m = p.matcher(i.next().toString());
StringBuffer sb = new StringBuffer();
while(m.find()){
m.appendReplacement(sb, "");
}

mySet.remove(i.next());
mySet.add(sb.toString());
}


Iterator i1 = mySet.iterator();
while (i1.hasNext()){
System.out.println(i1.next());
}
}

编译时不能通过。不知道为什么。请教。