附加来自其他方法类型Java的列表

Question

I have two method with two different types and I would like to append the list from the first method to the second method. Methods as follows:

private List<Object> mergeData(List<Data1> tabList, List<Data2> tabListAnother){
   List<Object> mergeDataList = new ArrayList<Object>();

     mergeDataList = ListUtils.union(tabList, tabListAnother);

     return mergeDataList;
}

private List<Data1> getData(Some Parameters here........){

 List<Data1> data1List = new ArrayList<Data1>();


 Some code here adding to list all elements
 .......
 .......


 return data1List;
}

My question is how can I append mergeDataList to data1List so it returns in such a way that it outputs values of mergeDataList and data1List togethor in one return statement?

Help appreciated..

Answer 1

如果我正确地理解了您的问题，则可以只调用getData()作为一个参数，另一个调用另一个列表的方法。

   mergeData(getData(...), otherList)

Answer 2

这很简单，只需执行以下操作：

data1List.addAll(mergeData(tabList,tabListAnother));