5.5. Exercises
See Section A.4, "Answers to Chapter 5 Exercises" for answers to the following
exercises:
-
[7] Write a program that will ask the user for a given name and
report the corresponding family name. Use the names of people you
know, or (if you spend so much time on the computer that you
don't know any actual people) use the following table:
Input
|
Output
|
fred
|
flintstone
|
barney
|
rubble
|
wilma
|
flintstone
|
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[15] Write a program that reads a series of words (with one word per
line[138]) until end-of-input, then prints a
summary of how many times each word was seen. (Hint: remember that
when an undefined value is used as if it were a number, Perl
automatically converts it to 0. It may help to
look back at the earlier exercise that kept a running total.) So, if
the input words were fred,
barney, fred,
dino, wilma,
fred (all on separate lines), the output should
tell us that fred was seen 3
times. For extra credit, sort the summary words in ASCII order in the
output.
| | | 5.4. Typical Use of a Hash | | 6. I/O Basics |
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