1Copyright (c) 2002-2007, International Business Machines Corporation and others. All Rights Reserved. 2This is an exercise for the ICU Workshop (September 2000). 3 4 http://www.icu-project.org/docs/workshop_2000/agenda.html 5 6 Day 2: September 12th 2000 7 Pre-requisites: 8 1. All the hardware and software requirements from Day 1. 9 2. Attended or fully understand Day 1 material. 10 3. Read through the ICU user's guide at 11 http://www.icu-project.org/userguide/. 12 13 #Date/Time/Number Formatting Support 14 9:30am - 10:30am 15 Alan Liu 16 17 Topics: 18 1. What is the date/time support in ICU? 19 2. What is the timezone support in ICU? 20 3. What kind of formatting and parsing support is available in ICU, i.e. 21 NumberFormat, DateFormat, MessageFormat? 22 23 24INSTRUCTIONS 25------------ 26 27 28This exercise was first developed and tested on ICU release 1.6.0, Win32, 29Microsoft Visual C++ 6.0. It should work on other ICU releases and 30other platforms as well. 31 32 MSVC: 33 Open the file "msgfmt.sln" in Microsoft Visual C++. 34 35 Unix: 36 - Build and install ICU with a prefix, for example '--prefix=/home/srl/ICU' 37 - Set the variable ICU_PREFIX=/home/srl/ICU and use GNU make in 38 this directory. 39 - You may use 'make check' to invoke this sample. 40 41PROBLEMS 42-------- 43 44Problem 0: 45 46 Set up the program, build it, and run it. To start with, the 47 program prints out the word "Message". 48 49Problem 1: Basic Message Formatting (Easy) 50 51 Use a MessageFormat to create a message that prints out "Received 52 <n> argument(s) on <d>.", where n is the number of command line 53 arguments (use argc-1), and d is the date (use Calendar::getNow()). 54 55 HINT: Your message pattern should have a "number" element and a 56 "date" element, and you will need to use Formattable. 57 58Problem 2: ChoiceFormat (Medium) 59 60 We can do better than "argument(s)". Instead, we can display more 61 idiomatic strings, such as "no arguments", "one argument", "two 62 arguments", and for higher values, we can use a number format. 63 64 This kind of value-based switching is done using a ChoiceFormat. 65 However, you seldom needs to create a ChoiceFormat by itself. 66 Instead, most of the time you will supply the ChoiceFormat pattern 67 within a MessageFormat pattern. 68 69 Use a ChoiceFormat pattern within the MessageFormat pattern, instead 70 of the "number" element, to display more idiomatic strings. 71 72 EXTRA: Embed a number element within the choice element to handle 73 values greater than two. 74 75 76ANSWERS 77------- 78 79The exercise includes answers. These are in the "answers" directory, 80and are numbered 1, 2, etc. 81 82If you get stuck and you want to move to the next step, copy the 83answers file into the main directory in order to proceed. E.g., 84"main_1.cpp" contains the original "main.cpp" file. "main_2.cpp" 85contains the "main.cpp" file after problem 1. Etc. 86 87 88Have fun! 89