How to use Java lambda Expressions for regular expressions

Question

In below code i am getting all elements from the list and splitting the text after "(" .

for (WebElement element : measureKeys) {
    String[] measure = element.getText().split("\\(");
    testing.add(measure[0])
}

How to use lambdas for above code

Answer 1

You could essentially turn the body of the loop to a lambda expression and collect the the results

List<String> testing = 
    measureKeys.stream()
               .map(e -> element.getText().split("\\(")[0])
               .collect(Collectors.toList());

Answer 2

Another alternative is ,

List<String> list= Pattern.compile("\\(")
                      .splitAsStream(measureKeys)
                      .collect(Collectors.toList());

Answer 3

    List<String> measureKeys = new ArrayList<>();
    List<String> a = new ArrayList<>();
    measureKeys.forEach(element -> a.add(element.split("\\(")[0]));

Is that your wish ?