Programming in Java

Which of the following is a comment in the Java language?

• / comment /

• //comment

• / comment */

• <-- comment -->

Which of the following is the correct main() method signature in Java?

• public static void main (String [] args)

• public static void Main (String [] args)

• public static void main (string [] args)

• public static void main (String args)

Which of the following is a valid variable declaration in Java?

• int 1myInteger = 0;

• int int = 0;

• Int my Integer = 0;

• int myInteger = 0;

Which of this command does not have errors?

• System.out.print("Hello World")

• System.out.print(Hello World);

• System.out.Print("Hello World);

• System.out.print("Hello World");

What will be output of below program?

public class Test {

public static void main(String[] args) {

int x = 10*20-20;

System.out.println(x);

}

}

• Runtime Error

• Prints 180

• Prints 0

• None of the above

What is the output for the following statement:

System.out.print("1"+"1");

• 11

• 2

• Error Message

Indicate the actual output of the statements below:

int thisYear = 2020;

System.out.println("The current year is "+thisYear);

• The current year is thisYear

• The current year is 2020

• No output; an error exists

• The current year is

Which of the following is used as a terminator in Java programming?

• )

• ;

• .

• >

What is the problem with this code?

Line 1: String myName = "Mary Jacobson";

Line 2: System.out.println ("My name is " + myname);

• Line 2: should be System.out.println ("My name is myName");

• Line 2: should be System.out.println ("My name is "+ myName);

• Line 2: should be System.out.display("My name is " + myname);

• There is no problem with the code

int x= 10;

int y = 20;

int z = x + y;

System.out.println(z);

Guess the output.

• 1020

• 10 20

• 30

• "10 20"