- Exception handling.You can throw and catch exceptions using the
- New operatorsThe
trueif the specified property is in the specified object. The
trueif the specified object is of the specified object type.
- The methods of
java.lang.Objectare inherited by
JavaArray. In addition, the
JavaArrary.toStringmethod now calls the method
- You can pass a
JavaClassobject to a Java method which requires an argument of type
java.lang.Classinstead of creating a wrapper around an instance of
- You cannot construct an instance of
JSExceptionwith a detail message.
- The three original public constructors for the Java class
- You cannot use the
==operator to compare two instances of
- Changes to the
- The top-level
evalindirectly could result in a runtime error. This change improves performance.
evalmethod is no longer available as a method of
Object; use the top-level
- Changes to the Function object.
- ApplicationsLists the installed applications and displays buttons for Start, Stop, Restart, Run, Debug, Modify and Remove on the left. The right panel displays information about the application selected in the applications list. If you click Modify, the right panel displays fields that let you modify the selected application.
- Add Application.Lets you add a new application.
- Preferences.Lets you specify the default values when adding a new application.
What You Should Already KnowThis book assumes you have this basic background:
- A general understanding of the Internet and the World Wide Web (WWW).
- Good working knowledge of Hypertext Markup Language (HTML). Experience with forms and the Common Gateway Interface (CGI) is also useful.
- Some programming experience in Pascal, C, Perl, Visual Basic, or a similar language.
- If you're going to use the LiveWire Database Service, familiarity with relational databases and a working knowledge of Structured Query Language (SQL).
- However, upgrading server settings does not move your applications nor does it recompile them for use with the 4.x web server. You must manually recompile user-defined applications before you can use them with a 4.x web server, as described in "Backward Compatibility with Earlier Releases". Be aware that older applications may not work with their original version of the Enterprise Server after recompiling. If you want to use an application with both servers, you should copy the application instead of moving it.
- For information on changes you may have to make in your code when upgrading, see the next section.
www; domain represents your Internet domain name, such as
uiuc.edu; path represents the directory structure on the server; and
.htmlrepresents an individual filename. In general, items in italics in URLs are placeholders and items in normal monospace font are literals. If your server has Secure Sockets Layer (SSL) enabled, you would use
httpin the URL. This book uses the following font conventions:
The monospace fontis used for sample code and code listings, API and language elements (such as function names and class names), filenames, pathnames, directory names, HTML tags, and any text that must be typed on the screen. (
Monospace italic fontis used for placeholders embedded in code.)
- Italic type is used for book titles, emphasis, variables and placeholders, and words used in the literal sense.
- Boldface type is used for glossary terms.
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Last Updated: 09/29/99 18:01:48
© Copyright © 1999 Sun Microsystems, Inc. Some preexisting portions Copyright © 1999 Netscape Communications Corp. All rights reserved.