Java Programming Quizzes for Sixth Form College Year 13

Question 1

Which comparison operator is used in Java to test for equality?

Accepted Answer

==

Answer

=

Answer

!=

Answer

<>

Question 2

In Java, what is the primary purpose of a method?

Accepted Answer

Organizing related code into reusable units

Answer

Exchanging data between different parts of a program

Answer

Controlling the flow of program execution

Answer

Storing data

Question 3

In Java, what is the distinction between a parameter and an argument?

Accepted Answer

A parameter is a variable declared in a method definition, while an argument is a value passed to the method when it is invoked.

Answer

An argument is a variable declared in a method definition, while a parameter is a value passed to the method when it is invoked.

Answer

There is no distinction between a parameter and an argument.

Answer

A parameter is a data type, while an argument is an instance of that data type.

Question 4

Which of the following is NOT a primitive data type in Java?

Accepted Answer

String

Answer

int

Answer

boolean

Answer

char

Question 5

What is the **primary** purpose of defining methods in Java?

Accepted Answer

To reuse code and enhance modularity

Answer

To store data

Answer

To control the flow of execution

Answer

To define a class

Question 6

Which of the following access modifiers, when applied to a class method, restricts access from outside the class?

Accepted Answer

private

Answer

public

Answer

protected

Answer

default

Question 7

Which of the following is **not** a valid keyword in Java?

Accepted Answer

const

Answer

class

Answer

byte

Answer

void

Question 8

What is the primary purpose of an 'if' statement in Java?

Accepted Answer

To execute a block of code only if a certain condition is met

Answer

To define a new variable

Answer

To declare a class

Answer

To iterate through a collection

Question 9

Which arithmetic operator can be used to calculate the remainder of a division operation in Java?

Accepted Answer

%

Answer

+

Answer

/

Answer

*

Question 10

What is the key difference between a void method and a non-void method in Java?

Accepted Answer

Void methods cannot return a value, while non-void methods can.

Answer

Non-void methods can take arguments, while void methods cannot.

Answer

Void methods are always private, while non-void methods can be public.

Answer

There is no difference between void and non-void methods.

Question 11

What is the purpose of the 'public' access modifier in Java?

Accepted Answer

To make a class or method accessible outside of its package

Answer

To make a variable accessible within the entire program

Answer

To define a static method

Answer

To create a constructor

Question 12

Which of the following is NOT a reserved keyword in Java?

Accepted Answer

code

Answer

if

Answer

else

Answer

public

Question 13

What is the purpose of the 'throws' keyword in a Java method signature?

Accepted Answer

To declare the exceptions that the method may throw

Answer

To specify the return type of the method

Answer

To define the arguments that the method takes

Answer

To handle exceptions that occur within the method

Question 14

Which control flow statement is used to execute a block of code repeatedly until a condition is no longer met?

Accepted Answer

while

Answer

if

Answer

switch

Answer

for

Question 15

What is the difference between a method and a constructor in Java?

Accepted Answer

Methods are used to perform specific tasks, while constructors are used to initialize objects.

Answer

Constructors are used to perform specific tasks, while methods are used to initialize objects.

Answer

Methods and constructors serve the same purpose.

Answer

Constructors are only used for creating arrays.

Question 16

What is the purpose of using the 'this' keyword in Java?

Accepted Answer

To refer to the current object.

Answer

To access static members of the class.

Answer

To create a new instance of the class.

Answer

To call a constructor.

Question 17

What is the purpose of using the 'super' keyword in a Java constructor?

Accepted Answer

To call the constructor of the parent class.

Answer

To access private members of the parent class.

Answer

To create a new instance of the parent class.

Answer

To override methods of the parent class.

Question 18

Which of the following operators is used for logical negation in Java?

Accepted Answer

!

Answer

~

Answer

&&

Answer

||

Question 19

Which of the following is NOT a valid access modifier in Java?

Accepted Answer

internal

Answer

public

Answer

private

Answer

protected

Question 20

What is the primary role of the 'instanceof' operator in Java programming?

Accepted Answer

Determining whether an object belongs to a particular class or implements an interface

Answer

Converting an object from one data type to another

Answer

Retrieving the name of the class to which an object belongs

Question 21

In Java, which statement accurately describes the handling of checked exceptions?

Accepted Answer

Checked exceptions must be explicitly handled using try-catch blocks or declared in the method's throws clause.

Answer

Checked exceptions are always thrown by the Java Virtual Machine (JVM).

Answer

Unchecked exceptions only occur due to programming errors.

Answer

Checked exceptions are always more severe than unchecked exceptions.

Question 22

What is a primary benefit of Java's automatic memory management system?

Accepted Answer

Simplified code maintenance

Answer

Enhanced performance

Answer

Greater flexibility in memory allocation

Answer

Memory compaction to prevent fragmentation

Question 23

Which data type is used to represent a sequence of characters in Java?

Accepted Answer

String

Answer

int

Answer

double

Answer

boolean

Question 24

What is the output of the following code snippet?
System.out.println(Math.pow(2, 3));

Accepted Answer

8

Answer

1

Answer

2

Answer

16

Question 25

Which of the following is not a valid Java keyword?

Accepted Answer

function

Answer

public

Answer

static

Answer

interface

Question 26

What is the default value of an int variable if it is not explicitly initialized in Java?

Accepted Answer

0

Answer

1

Answer

null

Answer

It depends on the specific context

Question 27

Which of the following is a valid data type in Java?

Accepted Answer

int

Answer

number

Answer

float32

Answer

integer

Question 28

What is the purpose of the 'public static void main(String[] args)' method in a Java program?

Accepted Answer

It is the entry point of the program, where execution begins.

Answer

Reads input from the user.

Answer

Prints output to the console.

Answer

Initialises variables for the program.

Question 29

Which operator in Java is used to compare the equality of two values?

Accepted Answer

==

Answer

!=

Answer

=

Answer

>=

Question 30

What is the primary purpose of a constructor in a Java class?

Accepted Answer

Initialise an object of that class during its creation.

Answer

Create a new instance of the class.

Answer

Define the methods of the class.

Answer

Define the variables of the class.

Question 31

Which of the following is a valid way to declare an array in Java?

Accepted Answer

int[] myArray = new int[10];

Answer

int[10] myArray;

Answer

int myArray[10];

Answer

int[] myArray;

Question 32

What is the default value of a boolean variable in Java?

Accepted Answer

false

Answer

true

Answer

0

Answer

null

Question 33

Which of the following classes provides methods to read input from the keyboard in Java?

Accepted Answer

Scanner

Answer

BufferedReader

Answer

InputReader

Answer

Console

Question 34

Which of the following is an example of a checked exception in Java?

Accepted Answer

IOException

Answer

NumberFormatException

Answer

ArithmeticException

Answer

NullPointerException

Question 35

Which of the following is NOT a valid data type in Java?

Accepted Answer

BooleanArray

Answer

double

Answer

int

Answer

boolean

Question 36

What is the purpose of the 'this' keyword in Java?

Accepted Answer

To refer to the current object within a method

Answer

To cast an object to a different type

Answer

To pass an object as an argument to a method

Answer

To create a new object

Question 37

Which access modifier is used to make a method accessible only within the same class?

Accepted Answer

private

Answer

public

Answer

default

Answer

protected