如何将变量函数参数转换为集合,如Set或List

它是一个字符串数组,因此您可以执行以下操作:

Arrays.asList(strings);

public Set<String> packStrings(String...strings){

    //Way 1 to create List
    List<String> strList = new ArrayList<String>();
    for (String str : strings){
         //adding to list
         strList.add(str);
    }
    //way 2 to create List
    List<String> strList = Arrays.asList(strings);
    //converting to set from List
    Set<String> setStr= new HashSet<String>(strList);
    return setStr;
}  

看看这个 Doc