Starting applications from a Java GUI

Hi,
I am creating a main menu application that will act as a front end for users to a selection of other applications. They will use this main menu application to start any of the other applications.
Most of these other application are written in Java, however, some of the applications have been written in Xview and until I can convert them to Java I have to be able to start them from my main menu application. When I exec these Xview applications they fail every time with the following message:
X Error of failed request: Bad Access (attempt to access private resource denied)
Major opcode of failed request: 89 (X_StoreColors)
Serial number of failed request: 152
current serial number in output stream: 153
Now from what I can gather the problem is (apart from my lack of Xview knowledge) the Xview application is trying to change and lock the colormap which I assume is locked by the java application or something along these lines. I don't suppose anyone has come across this problem themselves and has any suggestions???
Cheers
Jim

Welcome to the forums!
Keynote does not support the use of AppleScript in that fashion.

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Launching Java Application From A Java Application

Hello,
I am building a compiler and would like to have run feature. The problem is I can not seem to figure out the righ syntax to run and application from my java application.
Here is the code I am using to run an application:
public void RunClass()
try
Runtime rtr=Runtime.getRuntime();
Process pr = rtr.exec("java " + CurrentDirectory + FileNoExt);
String line;
BufferedReader rerr = new BufferedReader(new InputStreamReader(pr.getErrorStream()));
if((line = rerr.readLine()) == null) { CompileMessageArea.setText("Program Running\n"); }
while ((line = rerr.readLine()) != null) { CompileMessageArea.append(line +"\n"); }
rerr.close();
catch(Exception re) { re.printStackTrace(); }
The following is an example of what the above would send to the:
java c:\MyJava\Programs\test
If you try to type something like that in a DOS prompt it will not work. You must first change to that directory, but I am hoping there is an easy way to change the syntax. On the other hand if you want to compile a program you can type:
javac c:\MyJava\Programs\test.java
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So, if you have the answer for me PLEASE LET ME KNOW.
It is easily testable by keying it into the dos prompt.
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Eric Kohr

If you want to do it that way you need to use the environment parameter of the exec() method. Use it to set your classpath to the directory that's need for the java application you are about to run... for instance.
String[] env = new String[] {"CLASSPATH=c:\classes"}
String command = "java somePackage.someProgram";
Runtime.getRuntime().exec( env, command);Where your program is in the file "c:\classes\somePackage\someProgram"
your mileage may vary :)
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I was wondering if there is a simple way to run a Java application from a GUI built with Swing. I would presume there would be, because the Swing GUI is a Java application itself, technically.
So, I want a user to click a button on my GUI, and then have another Java application, which is in the same package with the same classpaths and stuff, run.
Is there a simple way to do this? Do any tutorials exist on this? If someone could give me any advice, or even a simple "yes this is possible, and it is simple" or "this is possible, but difficult" or "no this is not possible" answer, I would appreciate it. If anyone needs more information, I'll be happy to provide it.
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I don't know if it is possible to run the main method from another Java app by simply calling it...
But you could just copy and paste the stuff from your main method into a new static method called something like runDBQuery and have all the execution run from there.
How does that sound? Is it possible?
What I'm suggeting is:
Original
public class DBQuery{
public static void methodA(){
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methodA();
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//Your initializing
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}Revised:
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public static void methodA(){
public static void doQuery(){
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You may put a radio button or check box next to the column name.
You can also put a drop down list contains option "start by", "end by", "contains" matched to SQL like statement, '%XX', 'XX%' and '%XX' respectively.
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Some applications are not "application bundles". Usually these are older Carbon based apps that may have been ported over from OS 9. <Control>-clicking on these applications will not give you the "Show Package Contents" option because they are not folders (like application bundles are).
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Hi,
I'm facing an interesting challenge :-)
Inside a Java application, I want to start another java application.
Possible solutions in my list :
1. Using jakarta commons launcher.
2. Runtime.exec (make the code platform dependent).
3. Starting the main method of the other app by create a new Thread inside the current app
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Ali Salehi

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I had the same situation and I tried the code that you sugested and it works. I was wondering, what am I expecting in the while loop that appears after the int inp; statement? Is some data going to be displayed on the screen? How essential is to have that while loop after the calling the exec() method?
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Thanks for the code,
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at java.lang.Runtime.exec(Runtime.java:152)
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Opening a java application from a java application

I am trying to write a simple patching application for a program I am writing. The application must work on both Windows and Mac computers. The program is compiled into a single jar file. To patch the program, I'd like to see if an update is available, download the update if it's available and if the user requests it, and then apply the patch. Since this is a very simple, relatively small program, the "patch" is actually just a newer version of the jar file.
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Starting applications from a Java GUI

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