[JAVA] ArrayList 중복제거(Cantains)

< dataList >

aaa

bbb

aaa

ccc

ddd

< resultList >

aaa

bbb

ccc

ddd

resultList = new ArrayList<String>(); for (int i = 0; i < dataList.size(); i++) {     if (!resultList.contains(dataList.get(i))) {         resultList.add(dataList.get(i));     } }