Java Module 1 Quiz

Java is currently owned by which company?

• Microsoft

• Sun Microsystems

• Oracle

• IBM

What makes Java platform-independent?

• It uses HTML

• It is only used in Windows

• You write the program once and run it on multiple platforms

• It doesn’t require compilation

Which of the following is NOT an example of where Java can be used?

• Android apps

• Web applications

• Database creation only

• Desktop applications

Which symbol starts a single-line comment in Java?

• /* comment */

• // comment

• <!-- comment -->

• ** comment **

What is the data type used to store a single character in Java?

• String

• char

• boolean

• int

Which operator is used to find the remainder of a division?

• /

• %

• *

• #

In postfix form (x++), when is the value of the variable increased?

• Before it’s used in the expression

• After it’s used in the expression

• During program compilation

• Never

What does the assignment operator (=) do in Java?

• Checks if two values are equal

• Assigns a value to a variable

• Adds two numbers

• Compares two strings

Which of the following is an example of string concatenation in Java?

• "Hello" - "World"

• "Hello" + "World"

• "Hello" * "World"

• concat("Hello","World") only

Which class is most commonly used in Java to get user input?

• InputReader

• Console

• Scanner

• Reader