Advanced Enumerations QuizJ8 Home « Advanced Enumerations Quiz

The questions in this Java quiz are on the topics covered in the Objects & Classes section of the site. The table below lists the lesson used for each quiz, a description of the lesson content and the quiz number and questions associated with that lesson.

Lesson Summary

Click on a lesson in the table to go to that lesson for a refresher on the topics for that quiz.

Click on a quiz in the table to go straight to the quiz for a particular lesson.

Objects & Classes Lessons Description Quiz Info.
Lesson 1 - ArraysIn this lesson we look at arrays and how to use them in Java.Quiz1
8 questions
Lesson 2 - Array Examples & ExceptionsIn this lesson we look at some arrays examples and exceptions.Quiz2
8 questions
Lesson 3 - Class Structure & SyntaxFor this lesson we looked at class structure and syntax within our Java programs.Quiz3
8 questions
Lesson 4 - Reference VariablesThis lesson is about reference variables and how to use them within our Java programs.Quiz4
7 questions
Lesson 5 - Methods - BasicsWe have used methods throughout the lessons so its now time for a thorough investigation of what we can do with these members by starting with the basics.Quiz5
7 questions
Lesson 6 - Methods - Passing ValuesIn our second lesson on Java methods we investigate the concept of pass-by-value and what this means when we pass values to our methods.Quiz6
6 questions
Lesson 7 - Methods - Overloading & VarargsIn our final lesson on Java methods we look at method overloading and variable arguments.Quiz7
7 questions
Lesson 8 - Instance Variables & ScopeThis lesson is about instance variables, how to use them and their scope.Quiz8
7 questions
Lesson 9 - Final Instance VariablesThis lesson is about final instance variables, how we use them and the rules associated with them.Quiz9
7 questions
Lesson 10 - Constructor BasicsIn this lesson we learn the basics about constructors and how we use them to instantiate objects of our classes.Quiz10
7 questions
Lesson 11 - Overloaded Constructors and thisIn this lesson we learn constructor overloading and how to use the this keyword.Quiz11
9 questions
Lesson 12 - Static OverviewIn the first of three lessons on statics we investigate what the static keyword means and how to use static variables.Quiz12
7 questions
Lesson 13 - Static MethodsIn this lesson we look at static methods and how to use them within our Java classes.Quiz13
6 questions
Lesson 14 - Java ConstantsIn this lesson we investigate Java constants and how to use static initializer blocks.Quiz14
7 questions
Lesson 15 - Basic EnumerationsIn the first of two lessons on enumerations which were introduced in Java5, we look at the basics.Quiz15
8 questions
Lesson 16 - Advanced EnumerationsIn our final lesson of this section we look at some advanced uses of enumerations.This quiz.
6 questions

Java Objects & Classes Quiz 16

The quiz below tests your knowledge of the material learnt in Objects & Classes - Lesson 16 - Advanced Enumerations.

Question 1 : We can give enumeration constants a value?
- We CAN give <i>enumeration constants</i> a value
Question 2 : What are constant specific class bodies used for?
- We use <i>constant specific class bodies</i> to override enum methods.
Question 3 : Is the following code snippet valid?

enum Soup {
    TOMATO("vegetable"), CHICKEN("meat"), PRAWN("seafood");
    String type;
    String getType() {
        return this.type;
    }
}
- When giving <i>enumeration constants</i> a value we need to provide a constructor and the code snippet is missing one and so is invalid.
Question 4 : How do we create an enum singleton?
- We create an enum singleton using a single <i>enumeration constant</i> in our enum type.
Question 5 : Is an enum singleton immutable?
- An enum singleton is just a single enum type implicitly declared as a public static member of the enumerated class and so is therefore immutable.
Question 6 : If we give enumeration constants a value what else must be included in an enum class?
- If we give <i>enumeration constants</i> a value we must also include a constructor.
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The next quizzes are on OO Concepts.