How to use a Java collection of some elements to initialize another collection .

Such as:

   ArrayList<Data> a = new ArrayList<Data>();
  		 a.add(d1);
  		 a.add(d2);
  		 a.add(d3);
   		 
  // 如何使用 a 的部分元素， 如 从a 的第1个元素开始 对al 进行初始化？ 
   ArrayList<Data> al = new ArrayList<Data>(a);   
  
  

There is no direct function , or faster way . ?
online, ME ! ! !
------ Solution ---------------------------------------- ----
turn into an array and then operate
java.util.Arrays There are many static methods.

List<String> a = new ArrayList<String>();
  a.add("1");
  a.add("2");
  a.add("3");
  a.add("4");
  a.add("5");
  a.add("6");
  
  // 把a中的3、4、5拷贝到aa中
  String[] arr = new String[a.size()];
  arr = a.toArray(arr);
  arr = Arrays.copyOfRange(arr, 2, 5);
  List<String> aa = Arrays.asList(arr);
  
  System.out.println(Arrays.toString(aa.toArray()));

------ Solution ------------------------------------- -------
landlord will not use list.subList (int startIndex, int endIndex) for part of the collection is a collection of his return spread your collection with this constructor is not on the line.

   ArrayList<Data> a = new ArrayList<Data>();
           a.add(d1);
           a.add(d2);
           a.add(d3);
   ArrayList<Data> al = new ArrayList<Data>(a.subList(1,a.size()));   
  

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is to use this , only to find ,