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Question 160

Given:

Which statement on line 1 enables this code to compile?

Supplier function = () -> states.contains(“N”);

Function function = s -> s.contains(‘N”);

Consumer function = s -> {if(s.contains(“N”)) states.remove(s);};

Predicate function = s -> s.contains(“N”);

Correct Answer: D

The correct statement to enable this code to compile is to use a Predicate with a String argument. Predicates are functional interfaces that allow for a single input and return a boolean value. In this case, the predicate checks whether each string in the list contains the character 'N'. The removeIf() method takes a Predicate as an argument and removes all elements that satisfy the predicate condition. Therefore, using Predicate<String> function = s -> s.contains('N'); is the correct approach.

Discussion

d7bb0b2Option: D

D:=> removeif accept a predicated only

OmnisumemOption: D

Tested: D. Actually: Predicate<String> function = s -> s.contains("N");

StavokOption: D

D is Correct A List of String objects representing states is created and assigned to the states variable. A Predicate<String> functional interface is created using a lambda expression and assigned to the function variable. The lambda expression checks if a given String contains the character "N".The removeIf() method is called on the states list, passing in the function variable as an argument. This method removes all elements from the list that satisfy the given predicate. So, at the end of the program, all elements in the states list that contain the character "N" will be removed.