Notes for Slide 07
A String value can contain both normal and "Special"
characters. This slide explains the special characters.
We mentioned earlier that a String value must begin and
end on the same line of your program. You might ask,
"Using this rule, how could I specify that I want to
have many lines in my String value?" The answer is to
type two characters into your String value in your program:
a backslash: \ :and an en character: n :. Spoken as,
"backslash-n". When your program is run, if you output
a String that contained a backslash-n, instead of outputting
the two characters: \n :you would instead see a new line.
You might also notice that a quote character: " :is used
to specify the end of your String value. The natural
question to ask is, "How would I include a quote character
in my String value without Java thinking that I want to
end my String value?" The answer is to put a backslash
character: \ :in front of a quote character: " :so that
Java knows that you want the quote character to be part
of your String value.
Given that a backslash character: \ :is used to help specify
special characters such as a new line and a quote, your
next question could be, "What if I wanted to have a backslash
character in my String value? For example, what if I wanted
to put both a backslash and a quote inside my String value
and I wanted both the backslash and the quote to appear in
my String value?!" The answer is to type two backslash
characters together, such as: \\ :and Java will know that you
want to put a backslash character into your String value.
The slide ends with an example of how to output a previous
example that uses two lines of output even though the
String value is specified on just one line.
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