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

ptg7068951

76 HOUR 6:Using Strings to Communicate

Workshop

The followingquestions test your knowledge of the care and feeding of a string.

Quiz

1. My friend concatenates. Should I report him to the authorities?
   A. No. It’s only illegal during the winter months.
   B. Ye s ,but not until I sell the story to TMZ.com first.
   C. No. All he’s doing is pasting two strings together in a program.


2. Why is the word Stringcapitalized,whereas intand others are not?
   A. Stringis a full word,but intain’t.
   B. Like all objects that are a standard part of Java,Stringhas a
   capitalized name.
   C. Poor quality control at Oracle.


3. Which of the following characters puts a single quote in a string?
   A.
   B. \’
   C. ‘

Answers

1. C.Concatenation is just another word for pasting,joining,melding,or oth-
   erwise connecting two strings together. It uses the +and+=operators.


2. B.The types of objects available in Java are all capitalized,which is the
   main reason variable names have a lowercase first letter. It makes it
   harder to mistake them for objects.


3. B.The single backslash is what begins one of the special characters
   that can be inserted into strings.