Help with JNI C command line arguments

Hi.
I have created a .dll using c and jni which calls java classes from the .exe I have created in C. When I pass the arguments by hard-coding in the .dll file (i.e. options[0].optionString="-Djava.class.path=C:\xxx.xxx\;C:xxx\xxx usrName passwd id", it seems to work fine.
However, I want to pass the same arguments through Visual C++ Express Edition IDE. I put the same optionString into the command arguments. It creates the JVM using those arguments, and it goes into a function that does most of the work. But, it's not finding the class eventhough it's located in the same folder otherwise the hard-coded path wouldn't work. However, after destroying JVM, it prints that the Class is found. I am also passing the .jar files as arugments using ; to separate path. Any ideas or suggestions. Please reply. Thank you in advance.
Here is the output that I get:
Executing the JNI_VERSION_1_2 block
JVM Status: 0
Version: 10004
Going into createStuff() function now...
Classpath is: java/sql/Timestamp
Class Found: java.sql.Timestamp: OK
Getting MethodID: java.sql.Timestamp <constructor>: OK
Creating New java.sql.Timestamp class object: OK
Classpath is: com/myCompany/myStuff/myClass
myCls is null
Going to Destroy...
Destroying JVM
Exception in thread "main" java.lang.NoClassDefFoundError: com/myCompany/myStuff/myClass
Class Found: com/myCompany/myStuff/myClass: OK
Press any key to continue . . .

Yes. I am using those parameters because my java class uses that those parameters. But that's not the case. The problem is that I am not sure how to assign the whole path to options[0].optionString. If I hard-code the path that I showed you before, then it works because the path is the whole string which is assigned to the optionString. So, I am assigning the same string to the command arguments. Its just that in my createJVM(char *argv[]) function, I need to parse argv[1], argv[2], argv[3] and argv[4], and assign that to the optionString. But I am not sure how to do that. Any help will be appreciated. Thanks again.

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Help with char and command line arguments

I am writing a program that takes 2 command line arguments (such as 4 b, or 3 4, etc.). It uses the first argument to determine the height of a triangle (how many rows high), and the second is the character with which the triangle is drawn.
My problem is I tend to code backwards - go for the bigger part and then figure out the smaller things. So, I've written a program that prints out this triangle, BUT I can't figure out how to get the command line arguments into it properly. A number works fine because I can:
size = Integer.parseInt(args[0]);
but what do I do if the second argument is a character? Args is a String array (I've been fighting with it for the past 4 hours, so I KNOW its a String array) - so how can I get a char to be read as args[1]?
Here is my code before adding in the second argument (the char):
public class Triangle
public static final void main(String[] args)
int size;
if (args.length > 0)
try
size = Integer.parseInt(args[0]);
catch(NumberFormatException e)
System.out.println("Input Error");
createFilledTriangle(size);
System.out.println();
public static void createFilledTriangle(int size)
int i = 0;
int j = 0;
for(i = size, j = 1; i > 0; i--, j +=2)
printChar(" ", i);
printChar("*", j); <-----Instead of using * I want to use the second command line arg
System.out.println();
private static void printChar(String str, int total)
for(int i = 0, i < total; i++)
if(i%2 == 1)
System.out.print(str);
else
System.out.print(" ");
Thank you for any help in advance!

I was sure i send it the other day, i probably send it to the wron guy.
This will give you more idea about drawing.
import java.awt.*;
import java.awt.event.*;
public class Args extends Frame
     Panel panel = new Tpan();
     int   arg1;
     char arg2;
public Args(int a1, char a2)
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     setVisible(true);
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public void paint(Graphics g)
     super.paint(g);
     g.setColor(Color.blue);
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     g.setColor(Color.red);
     g.drawLine(120,110-arg1,120,110);
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public static void main (String[] args) throws InterruptedException
// get the 2 arguments from the args insread of a1= , a2=
     int a1 = 60;
     char a2 = 'a';
     new Args(a1,a2);
Noah
import java.awt.*;
import java.awt.event.*;
public class Args extends Frame
     Panel panel = new Tpan();
     int arg1;
     char arg2;
public Args(int a1, char a2)
     super();
     arg1 = a1;
     arg2 = a2;
     setBounds(1,1,600,400);
     setLayout(new BorderLayout());
     addWindowListener(new WindowAdapter()
     {     public void windowClosing(WindowEvent ev)
          {     dispose();
               System.exit(0);
     add("Center",panel);
     setVisible(true);
public class Tpan extends Panel
public Tpan()
public void paint(Graphics g)
     super.paint(g);
     g.setColor(Color.blue);
     g.drawLine(120,110-arg1,80,110);
     g.drawLine(120,110-arg1,160,110);
     g.drawLine(80,110,160,110);
     g.setColor(Color.red);
     g.drawLine(120,110-arg1,120,110);
     g.setColor(Color.black);
     g.drawString(""+arg2,116,110-arg1/2+10);
public static void main (String[] args) throws InterruptedException
// get the 2 arguments from the args insread of a1= , a2=
     int a1 = 60;
     char a2 = 'a';
     new Args(a1,a2);

Can anyone help with Adobe_Updater.exe command line options?

Hi,
I am trying to run the updater silently to update Reader.
Thanks,
SteveJ

Try these...
msiexec /p <patch.msp> /qn --- silent install
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Need Help with command line arguments for a class method

Hey guys,
I'm fairly new to programming in java.
I want to a write a class method that adds up its command line arguments which are numbers. For example, if the input was .... 5 2 3....then the output would be 10.
I have been told to use the Convert to convert a string to a double. I'm ok for writing the class method but I have no idea how to use Convert and why I need it in the method.
Can anybody help please?

Hey guys,
I'm fairly new to programming in java.
I want to a write a class method that adds up its
command line arguments which are numbers. For
example, if the input was .... 5 2 3....then the
output would be 10.Okay. So you would receive the numbers to add as the String[] argument to a main method. The steps are simple:
1) declare a variable for the count
2) for each String in the array:
2.1) extract the value as a double
2.2) add this to the count
3) output the resulting count
I have been told to use the Convert to convert a
string to a double.
I'm ok for writing the class
method but I have no idea how to use ConvertThere is no class Convert in the Java API.
and why
I need it in the method. Do you understand you need to somehow convert each String to a double (step 2.1)? Since Convert is unknown to me, maybe you should just take a look at class Double. It can help you do step 2.1, the rest should be trivial enough.
http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Double.html
Give it a go and feel free to post back with a specific problem you are having, accurately described if you please :-)

Executing another program with command line arguments

I am very new to Java, so bare with me.
I have written an encryption/decryption program in C (that accepts command line arguments of the key, mode (encrypt/decrypt), and file), and I have written a GUI for it in Java. It accepts the filename (and has a button which opens the "File/Open" dialog), key, and mode, and has a button to Start the process of the encryption. I'd like for that "Start" button to call my encryption program in C (eep.exe) with the command line arguments of the file, key, and mode. This is what I have written so far :
Start = new JButton("Start");
Start.setBounds(150, 180, 90, 25);
Start.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
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What should I do? Is Desktop.Open the right way to go about this? If not, what is the right way to go about it?
Thanks in advance.

That has helped greatly, but I cannot pass command line arguments to it.
Using :
try {
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catch (Exception e) {
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Desktop.getDesktop().open(new File("C:\\eep.exe" + " " + filename));it fails, get caught and prints "Error Executing."
I have also tried loading the program, as well as some command line arguments into an array of strings :
String[] cmdArray = {"C:\\eep.exe", filename};
Desktop.getDesktop().open(new File(cmdArray));But it gives me the error "The constructor File(String[]) is undefined" on the
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Problem associated with Command Line arguments

hi ,
I am not able to pass a file path as command line argument in java.
Actually i want to run a java program from the command prompt passing a file path . Something like this i tried to do , but its not working.
D:\VISHAL\src> java CopyFile C:\Documents and Settings\Administrator\Desktop\link.txt
where ,
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Message was edited by:
vishal_vj

is there any other way of solving this?Y don't U try it out with the logic as mentioned
below it wud be the case if U r not going with
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How To Run An External .exe File With Command Line Arguments

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Error while running aiaconfig.sh - The command line argument(s) "weblogicConfig"

Hi.
We are Configuring PIP on AIA 11.1.1.7 after installing AIA PIP release. we we run ./aiaconfig.sh we are getting below error message,
$./aiaconfig.sh
Starting Oracle Universal Installer...
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Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
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try checking relevant environment variables like the CLASSPATH.... a major source of failures in Windows is when in the classpath there is a path containing SPACES.... also enabling some "debug" or "verbose" flag (not sure how to do it) would provide more insight...

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love, b

ERROR: -1639 INVALID COMMAND LINE ARGUMENT

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Install stops at this point.
SOMEONE HELP... My kid is chomping at the bit !
Thanks.

Ok I'll do some more searching but I found something in the community forums.
APPSearch can not return this data into a property, so instead, for some unspeakable reason, returns a value of Null, follwed by another Null. This means that the property is created, and populated with two null characters. Bad news if the property also happens to be a PUBLIC property. All public properties are passed as part of the command line sent in a stream to the background installer process by the Execute Action. Since this stream now contains a double null value in a property, the stream is prematurely terminated. This creates an invalid command line, and thus the 1639 error.
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Obtaining command line arguments

Can someone point me at an example of how to obtain command
line arguments from inside my Flex application? I want to have my
Flex application perform different tasks when it is launched with
different command line arguments, for example:
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myApp.exe 2
myApp.exe 3
How is that done in a Flex app?
TIA,
Steve

"plug_in_guy" <[email protected]> wrote in
message
news:gnfgf2$ir1$[email protected]..
> Can someone point me at an example of how to obtain
command line arguments
> from
> inside my Flex application? I want to have my Flex
application perform
> different tasks when it is launched with different
command line arguments,
> for
> example:
>
> myApp.exe 1
> myApp.exe 2
> myApp.exe 3
>
> How is that done in a Flex app?
This may help:
http://www.davidtucker.net/2008/01/23/air-tip-7-using-command-line-arguments/

Filenames as Command Line Arguments: How?

i need to create a program that involves taking in a file name as command line argument, reads the file and then displays its contents on the screen. it needs to work with any file with a .txt extension.
The only thing i dont fully understand is how to read the file name as a command line argument e.g.
"java FileReaderApp myfile.txt
----contents of file--------
Thanks in advance
Carl
P.S. I have lready read the various helps, utils etc for java and still dont really understand

Okay, first, it will help if you don't think of "filenames as command line args." The two concepts are totally independent.
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The args array below contains the command line args.
public static void main(String[] args) {
// do stuff
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Look at FileReader and BufferedReader to actually read the contents of the file.
http://java.sun.com/j2se/1.4.2/docs/api/java/io/FileReader.html
http://java.sun.com/j2se/1.4.2/docs/api/java/io/BufferedReader.html
For the basic command line arg stuff, one of the following should have some info and examples
http://java.sun.com/docs/books/tutorial/
http://java.sun.com/learning/new2java/index.html
http://javaalmanac.com
http://www.jguru.com
http://www.javaranch.com
Bruce Eckel's Thinking in Java
Joshua Bloch's Effective Java
Bert Bates and Kathy Sierra's Head First Java

Help with JNI C command line arguments

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