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Greg Mehlhose

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since Jun 05, 2001
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Recent posts by Greg Mehlhose

Ooops, I did not read your question. What Sergei said is correct, JNI only works on the local machine. You will need CORBA for a distributed call to your remote proceedure.
20 years ago
JNI may be the solution. Try this link and let me know if this will solve your problem.
http://java.sun.com/docs/books/tutorial/native1.1/index.html
20 years ago
Try the following web site.
http://sourceforge.net/foundry/java/
Lots of great projects to work on.
20 years ago
I don't understand the problem that you are experiencing, but this link on threads and timers may help.
http://java.sun.com/docs/books/tutorial/essential/threads/timer.html
20 years ago
To expand on the concept a little more. The expression undergoes two stages of implicit conversion.
1 - Arithmetic promotion: The right hand side of the equation undergoes arithmetic promotion where everyting is promoted to an int.
2 - Assignment promotion: The equals conversion has really no effect on the primative type of the left hand side of the equation. Assigning an int to a char will compile as long as the int value (located on the left hand side) is in the legal range of a character value (located on the right hand side).
20 years ago
The answer is b. No compile errors and no runtime errors.
20 years ago
GUI
In my opinion, absolute positiong is tedious. I prefer the Layout managers. As soon as you get used to the layout managers you can really start producing GUI's much faster. I would start with this link to help you with layout managers and Swing.
http://java.sun.com/docs/books/tutorial/uiswing/index.html
If anyone has comments on the value of the JCert track, I would greatly appreciate their comments. Is the the Sun Certified Java Developer part of the JCert? I am a SCJP and would like to continue forward in the Java Realm and was wondering which direction to take.
Also, I was wondering where to go to find material to study for the UML and OOAD portion of the JCert certificaiton?
I your application using swing, AWT, of both?
20 years ago
Does anyone know of a good resource to include functionality to be able to print to a printer from a java app? I want include print functionality into my applicaition, ie File-->Print and be able to print a report to a printer.
20 years ago
1) A UnicastRemoteObject is a convenience class, defined in the RMI public API, that can be used as a superclass for remote object implementations. The superclass UnicastRemoteObject supplies implementations for a number of java.lang.Object methods (equals, hashCode, toString) so that they are defined appropriately for remote objects. UnicastRemoteObjectalso includes constructors and static methods used to export a remote object, that is, make the remote object available to receive incoming calls from clients.
20 years ago
A shell is a command interface that is used to interperate and process you command. In my opinoin, the difference between shells is as follows:
Bourne - Simple and most compact shell, better for Scripting
KORN - A superset of the Bourne shell that allows you to edit the command line, also good for scripting.
C shell - Outdated, but good for user interactive use and job control.
I would reccomend the KORN shell, it has the most features and can do almost everything that the other shells can do.
20 years ago
How about a using the man pages on the command: mount, this should give you enough info to mount anything.
20 years ago
Here is a link to get you started on CORBA http://java.sun.com/docs/books/tutorial/idl/index.html
Here is a link from a middlewear ORB vendor http://www.borland.com/visibroker/
20 years ago