数组去重，list去重

public static void testUn1(){
String[] arr = { “1”, “2”, “1”, “3”, “2”, “3”};

       List<String> arrList1 = Arrays. asList(arr);       List<String> arrList = new ArrayList<String>(arrList1);       Set<String> s = new HashSet<String>();        for( Iterator it = arrList.iterator();it.hasNext();){            String str = (String) it.next();             if(s.contains(str)){                 it.remove();            } else{                 s.add(str);            }       }        for( int i=0;i<arrList.size();i++){            System. out.println(arrList.get(i));       } }