<div>
oh! how come!? I have deleted the question. Don't know why it still exists. <br />
Actually, my question is wrong. If only one thread could run in JVM at a time, I think Java had no multi-threading concept. So the sentences I got is totally wrong. That why I deleted the question. <br />
<br />
What I want to ask is a process. As I know, netscape VM and Microsoft VM only allows one process at a time <br />
Java VM can run multiple processes at a time, right?<br />
<br />

</div>


oh! how come!? I have deleted the question. Don't know why it still exists.
Actually, my question is wrong. If only one thread could run in JVM at a time, I think Java had no multi-threading concept. So the sentences I got is totally wrong. That why I deleted the question.

What I want to ask is a process. As I know, netscape VM and Microsoft VM only allows one process at a time
Java VM can run multiple processes at a time, right?



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<div class="content wysiwyg-content">
I have asked some people and they said that JVM can only process one thread at a time, if the servlet needs to handle multiple requests simultanously or several servlet run simultanously,Thread.curre<wbr />ntThread()<wbr />.yield() should be used. As I read several books, they never mention to use Thread.currentThread.yield<wbr />() to handle multiple requests. On the contrast, they teach how to use synchronized word to make sure thread-safe. Then, is it greatly dependent on the servlet engine spawn threads for you?<br />
if not, Thread.currentThread.yield<wbr />() should be used in this case?<br />
Also, JDK1.3's JVM still can only have one thread at a time?<br />
<br />
<br />
<br />

</div>
</div>


I have asked some people and they said that JVM can only process one thread at a time, if the servlet needs to handle multiple requests simultanously or several servlet run simultanously,Thread.currentThread().yield() should be used. As I read several books, they never mention to use Thread.currentThread.yield() to handle multiple requests. On the contrast, they teach how to use synchronized word to make sure thread-safe. Then, is it greatly dependent on the servlet engine spawn threads for you?
if not, Thread.currentThread.yield() should be used in this case?
Also, JDK1.3's JVM still can only have one thread at a time?





servlet concept

Java Enterprise Edition (Java EE) is a specification defining a collection of Java-based server and client technologies and how they interoperate. Java EE specifies server and client architectures and uses profiles to define technology sets targeted at specific classes of applications. All Java EE profiles share a set of common features, such as naming and resource injection, packaging rules and security requirements.

Java EE

Java is a platform-independent, object-oriented programming language and run-time environment, designed to have as few implementation dependencies as possible such that developers can write one set of code across all platforms using libraries. Most devices will not run Java natively, and require a run-time component to be installed in order to execute a Java program.