Java Programming Quiz

What is the correct syntax for the main method in Java?

• public static void main(String args[])

• public void main(String args[])

• public static void main(String[] args)

• public void main(String[] args)

Which of the following is not a Java primitive data type?

• int

• float

• String

• char

What is the size of an int data type in Java?

• 4 bytes

• 2 bytes

• 8 bytes

• 1 byte

Which of the following is used to create an object in Java?

• class

• new

• import

• package

What is the output of the following code snippet? int x = 5; int y = 10; System.out.println(x + y);

• 510

• 15

• x + y

• 5 + 10

Which keyword is used to inherit a class in Java?

• extends

• implements

• inherits

• super

What is the purpose of the final keyword in Java?

• To define a constant

• To prevent method overriding

• To prevent inheritance

• All of the above

Which of the following is a valid declaration of an array in Java?

• int[] arr = new int[5];

• int arr[] = new int[5];

• int arr = new int[5];

• Both a and b

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

• true

• false

• 0

• null

Which exception is thrown when an array is accessed with an illegal index in Java?

• ArrayIndexOutOfBoundsException

• NullPointerException

• IllegalArgumentException

• IndexOutOfBoundsException