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Java command through CMD not working in C#.NET

I'm trying to run a java command in cmd using C# to get some inputs for my program, the path for Java is set correctly, and I am able to run Java commands in the cmd without any trouble but when I tried it in C#, it's showing " 'java' is not recognized as an internal or external command, operable program or batch file. " as if the path is not set.
But I am able to run the same command outside, don't know what seems to be the issue, kindly help, thanks in advance!
string cmd = #"/c java -jar """ + $"{treeEditDistanceDataFolder}libs" + $#"\RTED_v1.1.jar"" -f ""{f1}"" ""{f2}"" -c 1 1 1 -s heavy --switch -m";
Console.WriteLine(cmd);
var proc = new Process();
proc.StartInfo.FileName = "cmd.exe";
proc.StartInfo.Arguments = cmd;
proc.StartInfo.UseShellExecute = false;
proc.StartInfo.RedirectStandardOutput = true;
proc.StartInfo.RedirectStandardError = true;
proc.Start();
Console.WriteLine("Process started");
string output = proc.StandardOutput.ReadToEnd();
Console.WriteLine("Output was read");
string error = proc.StandardError.ReadToEnd();
proc.WaitForExit();

This line is your problem:
proc.StartInfo.UseShellExecute = false;
When UseShellExecute is true, the system and user PATH variables will be used if the application to launch is just the executable name. Because you're setting it to false, and java doesn't exist in your application's folder, it isn't possible for .NET to find it.
You have two options:
Set UseShellExecute to true so that it can use the PATH variable to find java.
Use a fully qualified path, e.g. "C:\Program Files\Java\jdk1.8.0_101\bin\java"
See this answer for more info.

How to open the terminal in Ubuntu and passe parameters to it by using Java code?

I'm using Ubuntu and I just want to open the terminal from Java and execute this command make iris sim. After that keep the terminal open until the user click any key.
This is my code, but it's not working correctly:
String []commands= {"make", "iris", "sim"};
String[] cmdArray = {"/usr/bin/xterm", "-e"};
Process p = Runtime.getRuntime().exec(cmdArray, commands);

You are using the exec command wrong. The second parameter is not an array of "commands" but an array of environment variables. See the JavaDocs.
Instead, simply call your command:
Process p = Runtime.getRuntime().exec("/usr/bin/xterm -e make iris sim");
Note that this will create a new process. If you want to wait for this process call p.waitFor();.

Execute a shell script in runtime of Java code from Eclipse

I have a shell script that I want to execute in Eclipse from a Java code.
I am able to use external tools in order to run the script, but I want the script to run during the execution of the Java code i.e. the Java code should make a call to the script.
Earlier I was using the "Process Builder" to do so but it seems Eclipse does not support that method as it says "File not found" when I have given it all the permissions.
Any idea how to run the script from a Java code in Eclipse?
Here is the code:
String line1 = null;
String target = new String("/home/aditya_s/workspace/rs-test/src/iperf_parse.sh " + host + " " + "9000");
while(line1 == null)
{
Process p1 = Runtime.getRuntime().exec(target);
BufferedReader input1 = new BufferedReader(new InputStreamReader(p1.getInputStream()));
System.out.println("Ran");
line1 = input1.readLine();
p1.destroy();
}
BW = Double.parseDouble(line1);
TIP: Right click on the shell script and go to Properties. There give the 'Read/Write/Execute' permissions to 'Owner'. By default, the 'Execute' permission is not there. So you might get an error like 'Could not execute script.sh'.

Eclipse runs your java program just as it normally would, so ProcessBuilder will work as well. It is possible that you passed in the wrong path. If the path is relative, it will be relative to System.getProperty("user.dir").

You should be able to use the below, replace shellscript with the script you want to run.
String s = "shellscript";
Process proc = Runtime.getRuntime().exec(s);

You should look at ProcessBuilder

Running a Java program from Adobe AIR's native process

I've use Adobe native process to run java program from my air app. Here the code and it works fine. But i should write absolute path to java runtime for that:
/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java.
If user installed java runtime in diff folder, or have diff version then this code would not work. How i can detect where java were installed or maybe there is another right way to run java applications from air applications? If i run java library from terminal command line then i could just write "java -jar pdfbox-app-1.6.0.jar" etc. and it runs fine.
private function convertPdf2Txt():void{
var arg:Vector.<String> = new Vector.<String>;
arg.push("-jar");
arg.push(File.applicationDirectory.resolvePath("pdfbox-app-1.6.0.jar").nativePath);
arg.push("ExtractText");
arg.push("-force");
arg.push(File.applicationStorageDirectory.resolvePath("Data/1.pdf").nativePath);
arg.push(File.applicationStorageDirectory.resolvePath("Data/1.txt").nativePath);
var fjava:File = new File("/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java");
if (fjava.exists==false){
Alert.show("Can't find Java Runtime in default folder.","Idea Rover",mx.controls.Alert.OK, null,null,imgInfo);
return;
}
var npInfo:NativeProcessStartupInfo;
npInfo = new NativeProcessStartupInfo();
npInfo.executable = fjava;
npInfo.arguments = arg;
var nativeProcess:NativeProcess;
nativeProcess = new NativeProcess();
nativeProcess.addEventListener(NativeProcessExitEvent.EXIT,onNativeProcessExit);
nativeProcess.start(npInfo);
}

Absolute path is:
Mac OS: /usr/bin/java
Win OS: (default)
64bit : C:\Program Files\Java
32bit : C:\Program Files (x86)\Java

rather than popping up an Alert, you could open a file selection dialog, using File.browseForOpen(). then, the File you want is contained in the event passed by the Event.SELECT handler. this flow seems standard for applications i've used that need to access other applications, but aren't sure where to find their executables.
var npInfo:NativeProcessStartupInfo = new NativeProcessStartupInfo();
// setup npInfo, nativeProcess...
var fjava:File = new File("/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java");
if (!fjava.exists) {
fjava.addEventListener(Event.SELECT, onFileSelected);
fjava.browseForOpen("Where is Java located?");
}
private function onFileSelected (evt:Event) :void {
npInfo.executable = evt.target;
nativeProcess.start(npInfo);
fjava.removeEventListener(Event.SELECT, onFileSelected);
}
of course, you can use the same logic to find the file java needs to launch as well.

You may be able to determine where the Java binaries are by looking at the JAVA_HOME environment variable. I'd like to do the same thing as you're doing, so I'll post more after I do more research.

How would I run an .sh file using NSTask and get its output?

I need to run an .sh file and get its output. I need to see the setup of the file as well.
The .sh file simply runs a java app through terminal.
Any ideas? I'm truly stuck on this.....
Elijah
The server.sh file:
echo Starting Jarvis Program D.
ALICE_HOME=.
SERVLET_LIB=lib/servlet.jar
ALICE_LIB=lib/aliceserver.jar
JS_LIB=lib/js.jar
# Set SQL_LIB to the location of your database driver.
SQL_LIB=lib/mysql_comp.jar
# These are for Jetty; you will want to change these if you are using a different http server.
HTTP_SERVER_LIBS=lib/org.mortbay.jetty.jar
PROGRAMD_CLASSPATH=$SERVLET_LIB:$ALICE_LIB:$JS_LIB:$SQL_LIB:$HTTP_SERVER_LIBS
java -classpath $PROGRAMD_CLASSPATH -Xms64m -Xmx128m org.alicebot.server.net.AliceServer $1
My current code:
NSTask *server = [NSTask new];
[server setLaunchPath:#"/bin/sh"];
[server setArguments:[NSArray arrayWithObject:#"/applications/jarvis/brain/server.sh"]];
NSPipe *outputPipe = [NSPipe pipe];
[server setStandardInput:[NSPipe pipe]];
[server setStandardOutput:outputPipe];
[server launch];
NSMutableString *outputString = [NSMutableString string];
while ([outputString rangeOfString:#"Jarvis>"].location == NSNotFound) {
[outputString appendString:[[[NSString alloc] initWithData:[[outputPipe fileHandleForReading] readDataToEndOfFile] encoding:NSUTF8StringEncoding] autorelease]];
NSRunAlertPanel(#"", outputString, #"", #"", #"");
}
The NSRunAlertPanel is just for checking the output. Now my code is freezing and not even getting to the alertpanel.

See answer to this question.
There are a couple of things that should be fixed in your script:
The script should begin with a
shebang. Also make sure that the
script has its executable bit set.
Because the environment variables are set up relative to the shell script directory, you need to make sure that the script directory is the current directory.
You need to export the environment variables that should be visible to the Java process.
In the last line you can use exec to replace the shell process with the Java executable that runs Jetty.
Here is a revised version of your script:
#!/bin/sh
echo Starting Jarvis Program D.
cd "`dirname \"$0\"`"
export ALICE_HOME=.
export SERVLET_LIB=lib/servlet.jar
export ALICE_LIB=lib/aliceserver.jar
export JS_LIB=lib/js.jar
# Set SQL_LIB to the location of your database driver.
export SQL_LIB=lib/mysql_comp.jar
# These are for Jetty; you will want to change these if you are using a different http server.
export HTTP_SERVER_LIBS=lib/org.mortbay.jetty.jar
export PROGRAMD_CLASSPATH=$SERVLET_LIB:$ALICE_LIB:$JS_LIB:$SQL_LIB:$HTTP_SERVER_LIBS
exec java -classpath $PROGRAMD_CLASSPATH -Xms64m -Xmx128m org.alicebot.server.net.AliceServer $1
Invoking the shell script in Objective-C with multiple arguments:
NSTask *server = [NSTask new];
[server setLaunchPath:#"/bin/sh"];
[server setArguments:[NSArray arrayWithObjects:#"/applications/jarvis/brain/server.sh", #"argument", nil]];
...

Using AMShellWrapperTest.app you can filter (save, ...) the stdout stream of server.sh by modifying "- (void)appendOutput:(NSString *)output" in BannerController.m. (... but maybe there is a better way to do this ...)
/*
// output from stdout
- modified AMShellWrapper/AMShellWrapperTest/BannerController.m (http://www.harmless.de/cocoa-code.php)
to print server.sh setup information to "Error Messages:" text output field (or Console.app as an
alternative) and the Q & A dialog to the "Output:" text field
- use of default charliebot, http://sourceforge.net/projects/charliebot/, modified only to run server.sh
with complete path (here: ~/Desktop/charliebot/server.sh) in AMShellWrapperTest.app
*/
- (void)appendOutput:(NSString *)output
{
NSMutableString *outputString = [NSMutableString string];
if (
([output rangeOfString:#"Charlie>"].location != NSNotFound ) || \
([output rangeOfString:#"[Charlie] user>"].location != NSNotFound )
) {
[self write: output];
[self write: #"\n"];
} else {
[outputString appendString: output];
//[outputString writeToFile:#"/dev/console" atomically: NO]; // alternative
[errorOutlet setString:[[errorOutlet string] stringByAppendingString: outputString]];
}
}

yes, but why isn't my code (posted above) not working?
I guess your "Jarvis>" line is the first line of the server.sh ouput stream that expects some user input, which means that this line is incomplete without a terminating newline character "\n". If server.sh had been run in Terminal.app, the user would have to press the return key to let the dialog continue. The conditional code of the while loop (NSNotFound) cannot finish its job on this incomplete line (which would be to abort the while loop) and gets stuck.
You have to drop the while loop and use the 'readInBackgroundAndNotify' mode on NSFileHandle to get non-blocking I/O stdout stream behaviour!
See: NSTask/NSPipe STDIN hangs on large data, sometimes...
So, if you like, just transform the source code of AMShellWrapperTest.app into a pure command-line tool by removing the GUI code.