Java Enums MCQs with answers Page - 1

You will find multiple-choice questions (MCQs) related to #Java Enums here. Go through these questions to prepare effectively for your upcoming exams and interviews.

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Q. Which class does all the Enums extend?

  • (A) Object
  • (B) Enums
  • (C) Enum
  • (D) EnumClass

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Q. What is the main purpose of using enums in Java?

  • (A) To define a class
  • (B) To create multiple instances of a method
  • (C) To define a set of named constants
  • (D) To handle runtime exceptions

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Q. Which keyword is used to declare an enum in Java?

  • (A) enum
  • (B) enumeration
  • (C) enumClass
  • (D) define

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Q. Can a Java enum have constructors and methods?

  • (A) No, enums cannot have any methods
  • (B) Yes, but only constructors
  • (C) Yes, enums can have constructors and methods
  • (D) Only static methods are allowed

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Q. What is the base class of all Java enums?

  • (A) Object
  • (B) Enum
  • (C) Enumeration
  • (D) EnumBase

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Q. What will be the output of the following code?

Code: 
enum Day { MONDAY, TUESDAY }
System.out.println(Day.MONDAY.ordinal());
  • (A) 1
  • (B) 0
  • (C) MONDAY
  • (D) Error

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Q. Which method returns all constants of an enum type?

  • (A) enumValues()
  • (B) getEnumConstants()
  • (C) values()
  • (D) constants()

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Q. Can you use switch-case with enum in Java?

  • (A) No, enums cannot be used in switch
  • (B) Only with numeric enums
  • (C) Yes, Java supports enums in switch-case
  • (D) Only in Java 8 and above

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Q. Can enums in Java implement interfaces?

  • (A) No
  • (B) Yes, but only one interface
  • (C) Yes, enums can implement one or more interfaces
  • (D) Only marker interfaces

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Q. Which method is used to get an enum constant by name?

  • (A) fromName()
  • (B) nameOf()
  • (C) get()
  • (D) valueOf()

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