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11th Grade Java Quizzes, Questions & Answers

Recent Java Quizzes

Core Java Test 4

Questions: 40 | Attempts: 657 | Last updated: Sep 7, 2025

Sample Question
Which statements are true about comparing two instances of the same class,given that the equals() and hashCode() methods have been properly overridden? (choose all that apply)

If the equals()methood returns true,the hashCode() comparison==might return false.

If the equals()methood returns false,the hashCode() comparison==might return true.

If the hashCode() comparison==returns true,the equals() method must return true

If the hashCode() comparison==returns true,the equals() method might return true

If the hashCode() comparison!=returns true,the equals() method must return true

Java Core Mock Test-3

Questions: 35 | Attempts: 146 | Last updated: Aug 6, 2025

Sample Question
Which access modifier have almost identical behaviour as that of default.?

Protected

Public

Private

Both public and protected

Core Java Hardest Test: Trivia Quiz!

Questions: 40 | Attempts: 150 | Last updated: Mar 21, 2025

Sample Question
Choose the possible constructor arguments of the Float wrapper class.

Float

Double

String

Int

Byte

Core Java Mock Test-3

Questions: 45 | Attempts: 685 | Last updated: Sep 5, 2025

Sample Question
Consider the following code: 1. class Test { 2. public static void main(String args[]) { 3. double d = 12.3; 4. Dec dec = new Dec(); 5. dec.dec(d); 6. System.out.println(d); 7. } 8. } 9. class Dec{ 10. public void dec(double d) { d = d - 2.0d; } 11. } Which of the following gives the correct value printed at line 6?

Prints: 12.3

Prints: -2.0

Prints: 10.3

Prints: 0.0

Java Programming Competition I

Questions: 50 | Attempts: 1761 | Last updated: Jul 4, 2025

Sample Question
What is the range of an int data type in Java?

–2^15 to 2^15 – 1

0 to 2^15

–2^31 to 2^31 – 1

0 to 2^31

Java Fundamentals Test

Questions: 30 | Attempts: 4735 | Last updated: Jan 12, 2025

Sample Question
Choose the operations that can be performed on String objects: (A) + (B) + = (C) - (D) % (E) ^

(A)

(D)

(A) and (B)

(D) and (E)

None of the above

Java Mock Test 1

Questions: 30 | Attempts: 113 | Last updated: Oct 14, 2025

Sample Question
Which of the following lines will compile without warning or error.

Float f=1.3;

Char c="a";

Byte b=257;

Boolean b=null;

int i=10;

Questions: 17 | Attempts: 553 | Last updated: Mar 21, 2025

Sample Question
When data cannot be changed after a program is compiled,the data is_______________

A.constant

B.variable

C.volatile

D.mutable

Java: Swing Frames Trivia Quiz

Questions: 10 | Attempts: 2984 | Last updated: Jul 16, 2025

Sample Question
In Java, what do you name an area on the screen that has fine borders and various buttons on the top border?

A window.

A screen.

A box.

A frame.

Java Fundamentals

Questions: 25 | Attempts: 737 | Last updated: Mar 19, 2025

Sample Question
import myLibrary.*; public class ShowSomeClass { // code for the class... } What is the name of the java file containing this program?

MyLibrary.java

ShowSomeClass.java

ShowSomeClass

ShowSomeClass.class

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