我如何使用Java流来避免此代码发生突变？

Question

I have a piece of code that is functioning the way I need it to. But I was curious if it can be written better using java streams to avoid mutability.

public void method(List<Map<String, String>> list)
{
  List<Map<String, Object>> expectedList = new ArrayList<>();

    for (Map<String, String> entry : list)
    {
        // assume replaceValues(entry) does some logic and returns an updated map
        Map<String, Object> updatedMap = replaceValues(entry);
        expectedList.add(updatedMap);
    }
}

How can I use java streams here?

Answer 1

list.stream().map(this::replaceValues).collect(Collectors.toList());

This is small refactoring, but what do you mean "avoid mutations"?