Java Quizzes, Questions & Answers

Recent Quizzes

This quiz assesses knowledge in Java programming, focusing on interface definitions, array creation, inheritance, class subclassing, method declaration, and types of inheritance. It's designed for learners to validate their Java...

Questions: 50 | Attempts: 446 | Last updated: Mar 20, 2023

Sample Question
Which is the valid declarations within an interface definition?

Public double methoda();

Public final double methoda();

Static void methoda(double d1)

All

Java Objective Test

The 'Java Objective Test' assesses understanding of Java and Object-Oriented Programming concepts. It covers class-object relationships, access modifiers, inheritance, and class members, focusing on key skills for Java developers.

Questions: 93 | Attempts: 548 | Last updated: Mar 21, 2023

Sample Question
Object-Oriented Programming means ...

Being objective about what you develop

Designing the application based on the objects discovered when analysing the problem

Writing an algorithm before writing your program and having a test plan

Writing a program composed of Java classes

Jvm Architecture Questionnaire_27 June

JVM Architecture Questionnaire_27 June

The 'JVM Architecture Questionnaire_27 June' assesses knowledge on JVM's architecture, focusing on memory management, class structures, and thread sharing. It is ideal for learners aiming to deepen their understanding of Java's...

Questions: 10 | Attempts: 213 | Last updated: Mar 19, 2023

Sample Question
One word should be sufficient enough to hold –

Int

Long

ReturnAddress

All of above

Advanced Java - Serialization & Reflection

A quiz to assess the understanding of the Adv Java session in Serialization

Questions: 10 | Attempts: 330 | Last updated: Mar 21, 2023

Sample Question
How many methods does Serializable have?

One

Two

Three

None

20130423-invent Java Quiz #

20130423-Invent Java Quiz #

The 20130423-Invent Java Quiz assesses understanding of Java programming concepts including access modifiers, inheritance, data types, and class members. It is designed to test key skills in writing and understanding Java code,...

Questions: 10 | Attempts: 87 | Last updated: Nov 15, 2023

Sample Question
What is the difference between private and public functions ?

Public functions can be used by anyone, private can only be used by other code in the class you are writin

Public functions are the only ones you can download

Public functions are free, you have to buy private ones

Public functions can’t be used

Scjp 6.0 _ Java _ Level 1

SCJP 6.0 _ JAVA _ Level 1

This 'SCJP 6.0 _ JAVA _ Level 1' quiz assesses knowledge of Java programming fundamentals. Questions cover string manipulation, control structures, loop constructs, and variable declarations, providing a practical evaluation for...

Questions: 10 | Attempts: 494 | Last updated: Mar 20, 2023

Sample Question
Given: public class TestString1 { public static void main(String[] args) { String str = "420"; str += 42; System.out.print(str); } } What is the output?

42

420

462

42042

Compilation fails.

An exception is thrown at runtime.

Scjp 6.0 _ Java _ Level 2

SCJP 6.0 _ JAVA _ level 2

The SCJP 6.0 JAVA level 2 quiz assesses advanced Java programming skills, focusing on class structures, inheritance, method overriding, constructors, and static contexts. It is designed for those preparing for Java certification...

Questions: 10 | Attempts: 174 | Last updated: Mar 18, 2023

Sample Question
Given: class One { void foo() { } } class Two extends One { // insert method here } Which three methods, inserted individually at line 14, will correctly complete class Two? (Choose three.)

Int foo(){/* more code here */}

Void foo(){/* more code here */}

Public void foo(){/* more code here */}

Private void foo(){/* more code here */}

Protected void foo(){/* more code here */}

Attempting To Compile And Run The Java Program

attempting to compile and run the java program

This Java programming quiz assesses understanding of exception handling, interface methods, and static context manipulations. It tests key skills like error handling, interface design, and string manipulation in Java, providing...

Questions: 10 | Attempts: 580 | Last updated: Mar 21, 2023

Sample Question
class ColorException extends Exception {} class WhiteException extends ColorException {} class White { void m1() throws ColorException {throw new WhiteException();} void m2() throws WhiteException {} public static void main (String[] args) { White white = new White(); int a,b,d,f; a = b = d = f = 0; try {white.m1(); a++;} catch (ColorException e) {b++;} try {white.m2(); d++;} catch (WhiteException e) {f++;} System.out.print(a+","+b+","+d+","+f); }} What is the result of attempting to compile and run the program?

Prints: 0,1,0,0

Prints: 1,1,0,0

Prints: 0,1,1,0

Prints: 1,1,1,0

Java Programming And Software Engineering Fundamentals

Java Programming and Software Engineering Fundamentals

If you are preparing for Java developer, then you should definitely take this Java fundamentals programming quiz.

Questions: 42 | Attempts: 1275 | Last updated: Mar 21, 2023

Sample Question
What is the size of a Char?

4 bits

7 bits

8 bits

16 bits

Core Java Quiz And Java Online Test Quiz

Core Java Quiz and Java Online Test quiz

This Core Java Quiz assesses knowledge of Java programming fundamentals, including constructors, data types, operators, and control structures. It is designed for learners to test their understanding of core Java concepts,...

Questions: 31 | Attempts: 264 | Last updated: Mar 22, 2023

Sample Question
Is the following statement true or false? The constructor of a class must not have a return type.

True

False

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