Introduction to Java and Faq__1 (4)

What's the difference between throw and throws?
Throw is used to throw exception, in a method,
And throws is used to declare a possible exception, used in the declaration of a class or method.
How do I generate. jar files?
Usage: jar {ctxu}[vfm0m] [jar-file] [manifest-file] [-c directory] filename ...
Options:
-C Create a new archive
-t lists list of archived content
-X expand named (or all) files in the archive
-U Update Existing archive
-V build verbose output to standard output
-F Specify archive file name
-M contains marked information from the indicated file
-0 storage mode only; not in zip compression format
-M does not produce a manifest for all items (manifest) file
-I generates index information for the specified jar file
-C changes to the specified directory and contains the following files:
If a file name is a directory, it will be recursively processed.
The list (manifest) filename and archive file name) is specified in the same order as the ' m ' and ' F ' flags.
Example 1: Archive two class files into an archive file called ' Classes.jar ':
Jar CVF Classes.jar Foo.class bar.class
Example 2: Using an existing manifest (manifest) file ' Mymanifest ' will foo/the directory of all
Files are archived to an archive file called ' Classes.jar ':
Jar CVFM Classes.jar mymanifest-c foo/.
Example 3:JAR-CVF Zhz.jar Hello.class
Excellent article website recommendation:
1 How to become a Java master quickly [Tomjava original]
Http://www.java.com.cn/showtopic.as...719&Forum_ID=31
2. An old engineer's words (Ten tips for young electronics Engineers)
Http://www.pconline.com.cn/pcjob/it...312/261734.html
3. A large number of Java program examples, examples for almost all Java classes
http://javaalmanac.com/egs/
4. The Java Tutorial on Sun
http://java.sun.com/docs/books/tutorial/
5. Talk about Java Learning Direction (reprint)
Http://www.430000.net/printpage.asp?ArticleID=46
6. Java Learning Path
Http://www.111cn.net/develop/author/cxy/way_to_java.shtm
7. Java Program Coding specification from SUN
Code conventions for the JAVATM programming Language
Http://java.sun.com/docs/codeconv/h...onvTOC.doc.html
8. Java Program Coding specification from IBM
Http://www-900.ibm.com/developerWor...ard/index.shtml
9.50 Tips for Beginners in C + + good for Java too