Beginner level java quiz

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

public static void main(String[] args)

public void main(String[] args)

static public void main(String[] args)

void main(String[] args)

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

int

float

double

decimal

What is the output of the following code? System.out.println(10 + 20 + "Java");

Java30

30Java

Java

1020Java

Which keyword is used to define a constant in Java?

static

final

const

constant

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

true

false

5

10

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

true

false

0

null

Which of these is used to create an instance of a class in Java?

new

class

object

this

What does the break statement do in a loop?

Exits the current loop

Skips the current iteration and continues to the next

Terminates the program

Pauses the loop

Which of the following is true about Java arrays?

Arrays in Java can have elements of different types

Arrays are fixed in size once declared

Arrays cannot be resized

Both b and c are correct

What is the purpose of the public keyword in Java?

To specify that the method or class can only be accessed within the same package

To allow the method or class to be accessed from anywhere

To make the method or class private

To prevent the method or class from being inherited