Question

Which of these methods can be used to obtain set of all keys in a map? (a) getAll() (b) getKeys() (c) keyall() (d) keySet() The question was posed to me in my homework. This intriguing question originated from Java.util in portion java.util – The Collections Framework of Java Select the correct answer from above options Java questions and answers, Java questions pdf, Java question bank, Java questions and answers pdf, mcq on Java pdf, Java questions and solutions, Java mcq Test , Interview Java questions, Java Questions for Interview, Java MCQ (Multiple Choice Questions),Core Java Questions, Core Java MCQ,core java interview questions for experiencedcore java interview questions for 3 years experience,java programming questions,core java interview questions for freshers,java interview questions and answers for freshers, java programming questions and answers pdf, java interview questions for beginners

Answer 1

The correct option is (d) keySet() To explain I would say: keySet() methods is used to get a set containing all the keys used in a map. This method provides set view of the keys in the invoking map.