Question

Which of these methods can be used to check whether the given value is a number or not? (a) isNaN() (b) isNumber() (c) checkNaN() (d) checkNumber() The question was posed to me in an interview for internship. The doubt is from Java.lang in chapter Exploring java.lang & java.io 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 answer is (a) isNaN() For explanation: isNaN() methods returns true if num specified is not a number, otherwise it returns false.