Java Programming Quiz

Which of the following is the correct way to declare a variable in Java?

• int number;

• num int;

• integer number;

• number int;

Which keyword is used to create a class in Java?

• object

• class

• Class

• create

What is the correct file extension for Java source files?

• .jav

• .java

• .class

• .jar

What is printed by the following code? System.out.println(3 + 2);

• 3+2

• 5

• 32

• Error

Which data type is used for decimal numbers in Java?

• int

• float

• char

• boolean

Which symbol is used for single-line comments in Java?

• //

• /* */

• #

• --

Which method is the entry point of a Java program?

• start()

• run()

• main()

• program()

Which of the following is NOT a Java data type?

• String

• boolean

• double

• real

How do you create a constant in Java?

• constant int x = 10;

• final int x = 10;

• const int x = 10;

• immutable int x = 10;

What is the correct way to write a “for” loop in Java?

• for (i=0; i<5; i++)

• for (int i=0; i<5; i++)

• for i=0 to 5

• loop (i=0; i<5; i++)