89 lines
2.8 KiB
Plaintext
89 lines
2.8 KiB
Plaintext
Copyright (c) 2002, International Business Machines Corporation and others. All Rights Reserved.
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This is an exercise for the ICU Workshop (September 2000).
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http://oss.software.ibm.com/icu/docs/workshop_2000/agenda.html
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Day 2: September 12th 2000
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Pre-requisites:
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1. All the hardware and software requirements from Day 1.
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2. Attended or fully understand Day 1 material.
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3. Read through the ICU user's guide at
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http://oss.software.ibm.com/icu/userguide/.
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#Date/Time/Number Formatting Support
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9:30am - 10:30am
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Alan Liu
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Topics:
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1. What is the date/time support in ICU?
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2. What is the timezone support in ICU?
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3. What kind of formatting and parsing support is available in ICU, i.e.
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NumberFormat, DateFormat, MessageFormat?
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INSTRUCTIONS
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------------
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This exercise was first developed and tested on ICU release 1.6.0, Win32,
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Microsoft Visual C++ 6.0. It should work on other ICU releases and
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other platforms as well.
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MSVC:
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Open the file "msgfmt.dsw" in Microsoft Visual C++.
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Unix:
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- Build and install ICU with a prefix, for example '--prefix=/home/srl/ICU'
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- Set the variable ICU_PREFIX=/home/srl/ICU and use GNU make in
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this directory.
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- You may use 'make check' to invoke this sample.
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PROBLEMS
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--------
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Problem 0:
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Set up the program, build it, and run it. To start with, the
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program prints out the word "Message".
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Problem 1: Basic Message Formatting (Easy)
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Use a MessageFormat to create a message that prints out "Received
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<n> argument(s) on <d>.", where n is the number of command line
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arguments (use argc-1), and d is the date (use Calendar::getNow()).
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HINT: Your message pattern should have a "number" element and a
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"date" element, and you will need to use Formattable.
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Problem 2: ChoiceFormat (Medium)
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We can do better than "argument(s)". Instead, we can display more
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idiomatic strings, such as "no arguments", "one argument", "two
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arguments", and for higher values, we can use a number format.
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This kind of value-based switching is done using a ChoiceFormat.
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However, you seldom needs to create a ChoiceFormat by itself.
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Instead, most of the time you will supply the ChoiceFormat pattern
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within a MessageFormat pattern.
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Use a ChoiceFormat pattern within the MessageFormat pattern, instead
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of the "number" element, to display more idiomatic strings.
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EXTRA: Embed a number element within the choice element to handle
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values greater than two.
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ANSWERS
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-------
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The exercise includes answers. These are in the "answers" directory,
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and are numbered 1, 2, etc.
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If you get stuck and you want to move to the next step, copy the
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answers file into the main directory in order to proceed. E.g.,
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"main_1.cpp" contains the original "main.cpp" file. "main_2.cpp"
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contains the "main.cpp" file after problem 1. Etc.
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Have fun!
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