Sams Teach Yourself Java™ in 24 Hours (Covering Java 7 and Android)

ptg7068951

Workshop 63

Workshop

Te s t y o u r k n o w l e d g e o f v a r i a b l e s ,expressions,and the rest of the information
in this hour by answering the following questions.

Quiz

1. What do you call a group of statements that is contained with an open-
   ing bracket and a closing bracket?
   A. A block statement
   B. Groupware
   C. Bracketed statements


2. Abooleanvariable is used to store trueorfalsevalues.
   A. Tr u e
   B. False
   C. No,thanks. I already ate.


3. What characters cannot be used to start a variable name?
   A. A dollar sign
   B. Tw o f o r wa r d s l a s h m a r k s (//)
   C. A letter

Answers

1. A.The grouped statements are called a block statementor a block.


2. A.trueandfalseare the only answers a booleanvariable can store.


3. B.Variables can star t with a letter,a dollar sign ($), or an underscore
   character (_). If you started a variable name with two slash marks,the
   rest of the line would be ignored because the slash marks are used to
   start a comment line.