What is the performance impact of the StringBuffer and String classes? Java provides the StringBuffer and String classes, and the String class is used to manipulate character strings that cannot be changed. Simply stated, objects of type String are read…
Learn how LDAP and JNDI combine to form a powerful directory and Java object storage facility The Lightweight Directory Access Protocol (LDAP), which traces its roots to the X.500 protocol, was developed in the early 1990s as a standard directories…
Standardize the way Jini clients release finite nonmemory resources In May 1998, I published “Object finalization and cleanup” in my Design Techniques column of JavaWorld. In this article, I gave advice on designing the end of object lifetimes. In particular,…
How can Java processes communicate without RMI? Q: How can two Java processes (two JVMs) on the same computer interact — that is, read each other’s methods and exchange objects? I’m using RMI, but it seems that a simpler solution…
The <em>InfoWorld</em> Test Center reviews SilverStream’s Application Server 3.0 Once a mere programming language, Java has since transformed itself into an all-purpose environment for enterprise applications. With Java 2 Enterprise Edition (J2EE), Sun has given developers a full suite of…
Add scripts to your JavaBeans or JavaBeans to your scripts The Bean Scripting Framework (BSF) is one of the more interesting Java offerings available free at IBM’s alphaWorks site (see Resources). BSF lets Java programs run scripts written in other…
Can you count on compilers to optimize your Java code? Developers are accustomed to compilers from languages other than Java that support various optimizations. In development, code is typically compiled with optimizations turned off so that source-level debuggers can operate…
Create Java apps with SAX appeal So, you understand (more or less) how you would represent your data in XML, and you’re interested in using XML to solve many of your data-management problems. Yet you’re not sure how to use…
Can JButton create a multiline button? Q: Suppose I want to create the button with a label as shown below: “Your Name” “Name” will be on the second line. I tried to create it with: new JButton(“Your n Name”) Unfortunately,…
Find out where you can get the best servlet coverage Lately, I’m often asked which books on Java servlet and JavaServer Pages (JSP) I would recommend. In fact, even when I was at a local bookstore recently someone asked me…