Java Programming Quiz

Which symbol starts a single-line comment in Java?

• /*

• //

• #

A public class named Welcome1 must be saved in a file named:

• welcome1.class

• welcome1.java

• Welcome1.java

• Welcome1Class.java

Identifiers in Java cannot:

• Begin with a digit

• Contain underscores

• Use dollar signs

• Use both uppercase and lowercase

Which method is the entry point of every Java application?

• start()

• run()

• main()

• init()

What does void mean in public static void main?

• The method returns 0

• The method returns nothing

• The method returns a string

• The method returns an object

Which statement prints output without moving to a new line?

• println()

• print()

• printf()

• display()

What escape sequence is used for a newline?

• \r

• \t

• \n

• \

Which method is used for formatted output in Java?

• System.out.print()

• System.out.println()

• System.out.printf()

• System.format()

What does %s represent in a format specifier?

• string

• short

• static

• system

Which keyword is used to create an object in Java?

• class

• new

• this

• static