What is MFC sendMessage/postMessage equivalent in java?

Hi, i am new to java. i hope i can get some help from u.
question #1. how does user defined message work in java?
question #2. how to send a message from dialog1 to dialog2 message quene and how to capture this message?
thank you very much
--mila

I am not aware of what "messages" do in MFC. Do they transmit some form of information from one component to another? Please enlighten me; I may be able to help you then.

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Struct equivalent for java array?

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here's my im doing.
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int freq;
public static void main(String[] args) throws IOException
BufferedReader key = new BufferedReader(new InputStreamReader(System.in));
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I want to assgined letter[0].character = 'a'; and letter[0].freq = '3' but it doesn't allow me to do that when I compile it?

I've trying doing:
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is it an ArrayList
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Paul

ReDim is like ArrayList in the same way that a wheelbarrow is like a pickup truck.
With ReDim, you have to specify the size of the array at the beginning, and then you have to decide when the size needs to be changed, and you have to decide what to change it to. With ArrayList, you don't have to do any of that. You just say "Gimme an ArrayList" and it figures out how much array space it needs by itself.
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Pidgin wrote:
As you indicated: Note that both are relatively slow and should only be used for exceptional or error conditions.
The access to the SCRIPT_NAME is actually a web re,ated variable that we need for showing which HTTP resquest generated the specific SQL error.It's only a variable in perl (or in CGI scripts, to be more precise).
It happens often enough, and doing a very low-level trace of the executed code migt not be the right option.SQLExceptions that need logging happen often? That shouldn't be the fact. How often?
Stacktraces are not awfully slow. They are ok for handling errors & exceptions. But they should not be used for classical flow control.
For example, it might be that the executing code is Script.class using Database.class, but Script.class can be initiated from www.whatever.com/script/ or www.whatever.com/premium/script/.. in each case, we want to know the full URL of the called "script'.With the stack trace you'd see the Servlet and/or Action that handles the request.
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This is quite different than the Perl logic, where we could access a "web enabled" System.getenv() and read from it SCRIPT_NAME or other web related parameters, if they existed (or returning null if they didn't)You should not try to apply the best practices learned by perl web programming 1:1 on Java. In the Java world pretty different concepts apply, especially when doing Web-Programming, as Perl web-applications are usually based on the rather antiquated CGI interface, while Java uses a central application server that handles each request as it wishes.

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Development speed:
C / C++ (DJGPP):
downloading many parts - 1 week
installing - 1 weekend
looking for basic tutorials - 1 week
getting hello world to work - 1 afternoon
getting more tutorials - 1 week
getting past hello world - 3 weeks
doing something worth doing - never
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compiling someone else's code - 1% success (only one program not specifically designed for DJGGP ever compiled - C is portable eh?)
Java
dowloading JDK - 4 hours
installing - 1/2 hour
basic tuts - 1 hour
hello world - 3 hours (java.lang.NoClassDefFoundException :-) )
more tutorials - 10 mins
getting past hello world - 1 week
doing something worth doing - 2 weeks
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compiling someone else's code - 95% success (some people use the GNU regexp and GL4java, now there's regexp & 3D in the main package, so that shouldn't be a problem for much longer)
Running speed:
http://members.lycos.co.uk/wjgoh/JavavsC.html
pure java JITted for the current machine is faster than generalised C, it's just that in C you get like
prog: printf("xxx\n")
stdlib: some assembler
wheras java
prog: println("xxx");
lib: print("xxx"+"\n");
lib: print("xxx\n");
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lib: write(new byte[] {'x','x','x','\n'});
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stdlib: write(bytes);
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Regards,
Arie.
&diams; Please remember to mark appropriate posts as correct/helpful. For the long run, it will benefit us all.
&diams; Author of Oracle Application Express 3.2 – The Essentials and More

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Closing.

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What is MFC sendMessage/postMessage equivalent in java?

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