Question : 1 Which keyword is used to declare a class in Java?

• A

  class

• B

  void

• C

  public

• D

  new

Question : 2 Which data type is used to store whole numbers in Java?

• A

  int

• B

  String

• C

  double

• D

  char

Question : 3 What is the output of the following code snippet? ```java System.out.println(5 == 5); ```

• A

  true

• B

  false

• C

  error

• D

  0

Question : 4 Which method is called automatically when an object of a class is created?

• A

  run()

• B

  start()

• C

  main()

• D

  constructor

Question : 5 Which keyword is used to refer to the current instance of a class in Java?

• A

  this

• B

  super

• C

  self

• D

  current

Question : 6 What is the output of the following code snippet? ```java int x = 5; System.out.println(x++); ```

• A

  5

• B

  6

• C

  error

• D

  0

Question : 7 Which keyword is used to create a subclass in Java?

• A

  this

• B

  super

• C

  extends

• D

  class

Question : 8 Which of the following is NOT a valid Java identifier?

• A

  myVariable

• B

  2ndVariable

• C

  _myVariable

• D

  MyVariable123

Question : 9 Which operator is used to compare two values for equality in Java?

• A

  ==

• B

  =

• C

  ===

• D

  equals()

Question : 10 Which of the following statements is used to exit from a loop in Java?

• A

  break

• B

  continue

• C

  exit

• D

  return

Question : 11 Which keyword is used to define a constant value in Java?

• A

  static

• B

  final

• C

  constant

• D

  const

Question : 12 Which of the following access modifiers restricts access the least in Java?

• A

  private

• B

  protected

• C

  public

• D

  default

Question : 13 Which of the following is a type of loop in Java that is executed at least once?

• A

  for

• B

  while

• C

  do-while

• D

  foreach

Question : 14 What does the "static" keyword mean in Java?

• A

  Dynamic binding

• B

  Class level

• C

  Instance level

• D

  Shared among all instances of the class

Question : 15 Which of the following is not a valid type of variable in Java?

• A

  int

• B

  string

• C

  double

• D

  boolean

Question : 16 What is the result of 5 / 2 in Java?

• A

  2

• B

  2.5

• C

  2.0

• D

  2

Question : 17 Which method is called when an object is garbage collected in Java?

• A

  finalize()

• B

  destroy()

• C

  garbageCollector()

• D

  delete()

Question : 18 What is the purpose of the "toString()" method in Java?

• A

  Converts a string to uppercase

• B

  Converts a string to lowercase

• C

  Returns a string representation of an object

• D

  Concatenates two strings

Question : 19 What is the output of the following code snippet? ```java int[] numbers = {1, 2, 3, 4, 5}; System.out.println(numbers[3]); ```

• A

  1

• B

  2

• C

  3

• D

  4

Question : 20 Which keyword is used to prevent a method from being overridden in Java?

• A

  override

• B

  final

• C

  static

• D

  private

Question : 21 Which operator is used to concatenate strings in Java?

• A

  +

• B

  -

• C

  *

• D

  concat()

Question : 22 Which class is used to read input from the user in Java?

• A

  System.in

• B

  Scanner

• C

  Reader

• D

  InputStream

Question : 23 What is the result of the expression (5 > 3) && (8 < 5) in Java?

• A

  true

• B

  false

• C

  error

• D

  0

Question : 24 What is the output of the following code snippet? ```java String str = "hello"; System.out.println(str.charAt(2)); ```

• A

  e

• B

  l

• C

  h

• D

  o

Question : 25 Which statement is used to manually throw an exception in Java?

• A

  throw

• B

  throws

• C

  try

• D

  catch