Arraylist去除重復(fù)

//通過遍歷老集合，把不包含的obj放到新集合里面去，產(chǎn)生一個新集合，就去重了

publicstaticArrayListgetSingle(ArrayListlist){

ArrayList newArrayList =newArrayList();

Iteratorit = list.iterator();

while(it.hasNext()){

Object obj = it.next();

if(!newArrayList.contains(obj)){

newArrayList.add(obj);

}

}

//產(chǎn)生的新的集合返回出去就是去重了

returnnewArrayList;

}