Java how to use stream map to return boolean [duplicate]

Answer 1

It looks like helpFunction(item) returns some instance of some class that has a boolean status() method, and you want your method to return true if helpFunction(item).status() is true for any element of your Stream.

You can implement this logic with anyMatch:

public boolean status(List<String> myArray) {
    return myArray.stream()
                  .anyMatch(item -> helpFunction(item).status());
}

Answer 2

you are using the stream wrong...

you dont need to do a foreach on the stream, invoke the anyMatch instead

public boolean status(List<String> myArray) {
      return myArray.stream().anyMatch(item -> here the logic related to x.status());
}