Steven Zeng

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since Jan 15, 2002
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Recent posts by Steven Zeng

Would you please show us the error message?
20 years ago
In fact i want that in JFileChooser user can not select "all files *.*" in file type ComBoBox. However thanks for your reply
21 years ago
Hi all,
Would you please tell me how to let a JFileChooser only accept one file type for example "*.jar"(I know FileFilter). In fact, I don't want that user can select "all files" in JFileChooser, but I don't know how to disable the JCombobox.
Thanks ahead!
21 years ago
Hello all,
Can somebody tell me how to modify the Font Setting in Eclipse2. I mean in Java Source Editor.Thanks ahead.
Steven Zeng
Hi,all
I downloaded sun j2ee sdk and j2se sdk ,and finished setting the enviroment variables. But when I use j2ee -verbose to start up j2ee server , I get a error message :
J2EE server startup error
org.omg.CORBA.INTERNAL: vmcid: SUN minor code: 209 completed: No
at com.sun.corba.se.internal.iiop.GIOPImpl.createListener(GIOPImpl.java
253)
at com.sun.corba.se.internal.iiop.GIOPImpl.getEndpoint(GIOPImpl.java:20
)
at com.sun.corba.se.internal.POA.POAORB.setPersistentServerPort(POAORB.
ava:445)
at com.sun.enterprise.iiop.POAEJBORB.setPersistentServerPort(POAEJBORB.
ava:418)
at com.sun.enterprise.iiop.POAProtocolMgr.setPersistentServerPort(POAPr
tocolMgr.java:147)
at com.sun.enterprise.server.J2EEServer.run(J2EEServer.java:201)
at com.sun.enterprise.server.J2EEServer.main(J2EEServer.java:720)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcce
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.commons.launcher.ChildMain.run(ChildMain.java:280)
J2EE server fatal error
java.lang.RuntimeException:
at com.sun.enterprise.server.J2EEServer.run(J2EEServer.java:334)
at com.sun.enterprise.server.J2EEServer.main(J2EEServer.java:720)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcce
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.commons.launcher.ChildMain.run(ChildMain.java:280)
Caused by: org.omg.CORBA.INTERNAL: vmcid: SUN minor code: 209 completed: No
at com.sun.corba.se.internal.iiop.GIOPImpl.createListener(GIOPImpl.java
253)
at com.sun.corba.se.internal.iiop.GIOPImpl.getEndpoint(GIOPImpl.java:20
)
at com.sun.corba.se.internal.POA.POAORB.setPersistentServerPort(POAORB.
ava:445)
at com.sun.enterprise.iiop.POAEJBORB.setPersistentServerPort(POAEJBORB.
ava:418)
at com.sun.enterprise.iiop.POAProtocolMgr.setPersistentServerPort(POAPr
tocolMgr.java:147)
at com.sun.enterprise.server.J2EEServer.run(J2EEServer.java:201)
... 6 more
Hi,Manish,can u tell me the url that u said.
As we all know that Assertion is a feature appeared in jdk1.4 ,and is essential is SCJP1.4 exam?I have read through the material in SUN website.But where can i find some Mock exam questions about this topic?I really need practice.
Yes, the code runs. By the way,can anybody give a fail-fast example?Thanks in advance!
Given a Vector containing several elements, if we want to loop over it and remove some element under specific condition,should a Iterator achieve this goal?How to do?
The following tags are all valid tags in applet as far as i know .Are all these correct?who can tell me more?
CODEBASE CLASS WIDTH HEIGHT CODE PARAM
21 years ago
Thank you , Dirk , I have let my jar run!
21 years ago
I want know if I have a complete jar file contains classes works perfect,but how can i make it run (of course there is a "main" class contain main method)?
21 years ago
Here is question :
Collection interface iterator method returns Iterator(like Enumerator), through you can traverse a collection from start to finish and safely remove elements.
A) true
B) false
The answer is A,but I know that the iterator method returns Iterator that is fail-fast, so i doubt this answer,is it CORRECT?
Jim,why not show me in detail? Thanks a lot.
21 years ago