Second Semester Online Quiz

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

• a.) int 1;

• b.) float numFloat = "10.23";

• c.) String model = 'cell';

• d.) char value = 'a';

Answer explanation

Which data type is used to store whole number in Java?

• a.) int

• b.) char

• c.) String

• d.) boolean

What values can a boolean variable store?

• a.) whole number

• b.) text

• c.) true

• d.) character

The value 'a' would be best stored in a blank type of variable.

• a.) String

• b.) char

• c.) double

• d.) integer

What type of variable is used to store texts?

• a.) String

• b.) char

• c.) double

• d.) integer

To output or display data on the screen we use:

• a.) System.out.print()

• b.) System.display

• c.) System.in.println

• d.) System.print.display()

What is the correct syntax to output "Hello World" in Java

• a.) Console.WriteLine("Hello World");

• b.) display("Hello World");

• c.) echo("Hello World");

• d.) System.out.print("Hello World");

How do you insert single-line comments in Java?

• a.) /* comment here

• b.) */  comment here /

• c.) //  comment here

• d.) #  comment here

Which operator is used to add together two values?

• a.) *

• b.) +

• c.) &

• d.) %

Which operator can be used to compare two values?

• a.) =

• b.) <>

• c.) ><

• d.) ==