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I want to execute my program without using an IDE.
I've created a jar file and an exectuable jar file. When
I double click the exe jar file, nothing happens, and when I try to use the command in cmd it gives me this:
Error: Unable to access jarfile <path>
I use the command: java -jar Calculator.jar
How I created the jar:
Right click on project folder (Calculator)
Select
Click on Java Folder and select "Exectuable Jar File", then select next
Launch Configuration: Main - Calculator
Create Export Destination
Hit "Finish" and profit! Well, not really.
I had encountered this issue when I had run my Jar file as
java -jar TestJar
instead of
java -jar TestJar.jar
Missing the extension .jar also causes this issue.
Fixed
I just placed it in a different folder and it worked.
[Possibly Windows only]
Beware of spaces in the path, even when your jar is in the current working directory. For example, for me this was failing:
java -jar myjar.jar
I was able to fix this by givng the full, quoted path to the jar:
java -jar "%~dp0\myjar.jar"
Credit goes to this answer for setting me on the right path....
I had this issue under CygWin in Windows. I have read elsewhere that Java does not understand the CygWin paths (/cygdrive/c/some/dir instead of C:\some\dir) - so I used a relative path instead: ../../some/dir/sbt-launch.jar.
I had the same issue when trying to launch the jar file. The path contained a space, so I had to place quotes around. Instead of:
java -jar C:\Path to File\myJar.jar
i had to write
java -jar "C:\Path to File\myJar.jar"
Just came across the same problem trying to make a bad USB...
I tried to run this command in admin cmd
java -jar c:\fw\ducky\duckencode.jar -I c:\fw\ducky\HelloWorld.txt -o c:\fw\ducky\inject.bin
But got this error:
Error: unable to access jarfile c:\fw\ducky\duckencode.jar
Solution
1st step
Right click the jarfile in question. Click properties.
Click the unblock tab in bottom right corner.
The file was blocked, because it was downloaded and not created on my PC.
2nd step
In the cmd I changed the directory to where the jar file is located.
cd C:\fw\ducky\
Then I typed dir and saw the file was named duckencode.jar.jar
So in cmd I changed the original command to reference the file with .jar.jar
java -jar c:\fw\ducky\duckencode.jar.jar -I c:\fw\ducky\HelloWorld.txt -o c:\fw\ducky\inject.bin
That command executed without error messages and the inject.bin I was trying to create was now located in the directory.
Hope this helps.
None of the provided answers worked for me on macOS 11 Big Sur. The problem turned out to be that programs require special permission to access the Desktop, Documents, and Downloads folders, and Java breaks both the exception for directly opened files and the permission request popup.
Fixes:
Move the .jar into a folder that isn’t (and isn’t under) Documents, Desktop, or Downloads.
Manually grant the permission. Go to System Preferences → Security and Privacy → Privacy → Files and Folders → java, and check the appropriate folders.
I had a similar problem and I even tried running my CMD with administrator rights, but it did not solve the problem.
The basic thing is to make sure to change the Directory in cmd to the current directory where your jar file is.
Do the following steps:
Copy jar file to Desktop.
Run CMD
Type command cd desktop
Then type java -jar filename.jar
This should work.
Edit: From JDK-11 onwards ( JEP 330: Launch Single-File Source-Code Programs )
Since Java 11, java command line tool has been able to run a single-file source-code directly. e.g.
java filename.java
If you are using OSX, downloaded files are tagged with a security flag that prevents unsigned applications from running.
to check this you can view extended attributes on the file
$ ls -l#
-rw-r--r--# 1 dave staff 17663235 13 Oct 11:08 server-0.28.2-java8.jar
com.apple.metadata:kMDItemWhereFroms 619
com.apple.quarantine 68
You can then clear the attributes with
xattr -c file.jar
It can also happen if you don't properly supply your list of parameters. Here's what I was doing:
java -jar test#gmail.com testing_subject file.txt test_send_emails.jar
Instead of the correct version:
java -jar test_send_emails.jar test#gmail.com testing_subject file.txt
This worked for me.
cd /path/to/the/jar/
java -jar ./Calculator.jar
For me it happens if you use native Polish chars in foldername that is in the PATH.
So maybe using untypical chars was the reason of the problem.
sometime it happens when you try to (run or create) a .jar file under /libs folder by right click it in android studio. you can select the dropdown in top of android stuio and change it to app. This will work
My particular issue was caused because I was working with directories that involved symbolic links (shortcuts). Consequently, trying java -jar ../../myJar.jar didn't work because I wasn't where I thought I was.
Disregarding relative file paths fixed it right up.
In my case the suggested file name to be used was jarFile*.jar in the command line. The file in the folder was jarFile-1.2.3.jar . So I renamed the file to jarFile. Then I used jarFile.jar instead of jarFile*.jar and then the problem got resolved
It can happen on a windows machine when you have spaces in the names of the folder. The solution would be to enter the path between " ".
For example:
java -jar c:\my folder\x.jar -->
java -jar "c:\my folder\x.jar"
To avoid any permission issues, try to run it as administrator. This worked for me on Win10.
I know this thread is years ago and issue was fixed too. But I hope this would helps someone else in future since I've encountered some similar issues while I tried to install Oracle WebLogic 12c and Oracle OFR in which its installer is in .jar format. For mine case, it was either didn't wrap the JDK directory in quotes or simply typo.
Run Command Prompt as administrator and execute the command in this format. Double check the sentence if there is typo.
"C:\Program Files\Java\jdk1.xxxxx\bin\java" -jar C:\Users\xxx\Downloads\xxx.jar
If it shows something like JRE 1.xxx is not a valid JDK Java Home, make sure the System variables for JAVA_HOME in Environment Variables is pointing to the correct JDK directory. JDK 1.8 or above is recommended (2018).
A useful thread here, you may refer it: Why its showing your JDK c:program files\java\jre7 is not a valid JDK while instaling weblogic server?
For me it happen because i run it with default java version (7) and not with compiled java version (8) used to create this jar.
So i used:
%Java8_64%\bin\java -jar myjar.jar
Instead of java 7 version:
java -jar myjar.jar
I had a similar problem where TextMate or something replaced the double quotes with the unicode double quotes.
Changing my SELENIUM_SERVER_JAR from the unicode double quotes to regular double quotes and that solved my problem.
this is because you are looking for the file in the wrong path
1. look for the path of the folder where you placed the file
2. change the directory cd in cmd use the right path
I use NetBeans and had the same issue. After I ran build and clean project my program was executable. The Java documentation says that the build/clean command is for rebuilding the project from scratch basically and removing any past compiles. I hope this helps. Also, I'd read the documentation. Oracle has NetBeans and Java learning trails. Very helpful. Good luck!
Maybe you have specified the wrong version of your jar.
I finally pasted my jar file into the same folder as my JDK so I didn't have to include the paths. I also had to open the command prompt as an admin.
Right click Command Prompt and "Run as administrator"
Navigate to the directory where you saved your jdk to
In the command prompt type: java.exe -jar <jar file name>.jar
Keep the file in same directory where you are extracting it. That worked for me.
This is permission issue, see if the directory is under your User.
That's why is working in another folder!
Rename the jar file and try
Explanation :
yes, I know there are many answers still I want to add one point here which I faced.
I built the jar and I moved it into the server where I deploy (This is the normal process)
here the file name which I moved already existed in the server, here the file will override obviously right. In this case, I faced this issue.
maybe at the time of overriding there can be a permission copy issue.
Hope this will help someone.
Have you tried to run it under administrator privoleges?
meaning, running the command in "Run As" and then select administrator with proper admin credentials
worked for me
I was trying this:
After giving the file read, write, execute priviledges:
chmod 777 java-repl.jar
alias jr="java -jar $HOME/Dev/java-repl/java-repl.jar"
Unable to access bla bla..., this was on Mac OS though
So I tried this:
alias jr="cd $HOME/Dev/java-repl/ && java -jar java-repl.jar"
This did not work "Unable to access jarfile"
"C:\Program Files\java\jdk-13+33-jre\bin\javaw.exe" -jar "C:\Program Files\Maxim Integrated Products\1-Wire Drivers x64\ OneWireViewer.jar"
This does work
"C:\Program Files\java\jdk-13+33-jre\bin\javaw.exe" -jar "C:\Program Files\Maxim Integrated Products\1-Wire Drivers x64\OneWireViewer.jar"
The difference is the single space in front of OneWireViewer.jar not withstanding that it is surrounded with quotes and even has other spaces.
I just created a jar file using jdk7. I tried running it but kept getting an error. It turned out it was pointing at a jre6 and not the jre in jdk7. So, I used the following command to change it
ftype jarfile = "C:\path to jre\bin\javaw.exe" -jar "%1" %*
After that, I tried to double click on my jar file again, but it popped up a window asking me to choose a program to open it with. When I chose the same javaw.exe file as above it runs but exits immediately without doing anything. I can run it fine in cmd by doing the java -jar file.jar command. I even tried deleting the .jar registry key, but that just got me back to the point where it asked me to choose a program to open with. I'm running windows 7 ultimate if that matters.
EDIT:
In the registry there are 3 subkeys: OpenWithList, OpenWithProgids, and UserChoice. I've changed all the defaults to the path above except UserChoice which won't let me edit it from regedit. When I delete that and try to run the jar file, it opens up the choose a program to open with window again. For some reason it ignores the other registry keys
OK, I found the answer somewhere else but ran into this issue again so came here via google.
The solution is...
Open up regedit.exe
Either search for "jre6" or follow this: HKLM->SOFTWARE->Classes->jarfile->shell->open->command
Change the Data field to the directory of the javaw.exe file that's in your JDK directory.
For the love of God, don't forget to put the weird [-jar "%1" %*] parts on the end of it.
Enjoy outsmarting Oracle.
Hopefully this'll save some people a bit of time.
This happened to me when I installed the JRE6 plugin for Chrome, though it could happen when installing any other JRE I guess.
I fixed it by going to regedit and searched for jre which brought up...
HKEY_CURRENT_USER/Software/Classes/Applications/javaw.exe/shell/open/command
I changed the REG_SZ
from: "C:\Program Files (x86)\Java\jre7\bin\javaw.exe" "%1"
to: "C:\Program Files (x86)\Java\jre7\bin\javaw.exe" -jar "%1" %*
When windows asks you for a program to run it against it won't insert the needed -jar argument in the command line.
If it's asking you for the exe in which to run it then that means somehow your JRE isn't associated with the .jar extension. You'll need to modify the .jar file registry entry so that it runs c:\path_to_jre\bin\javaw -jar %1 in order for it to work.
It used to be under File Explorer > Tools > Folder Options > File Types.
Then look for .jar in there. You should find a text field that shows the executable to run and the command line arguments. That's what you want to modify. You can also do it in the registry editor too, but I've forgotten the HKEY variable path. I'm sure this KBA will help:
support_microsoft_kb_950505
Check if the file type jarfile is actually registered with the *.jar extension using
assoc .jar
Seems like .jar is not linked to jarfile.
I'm not sure exactly why none of the solutions worked, but I reinstalled jre7 and it works now.
Isn't it easier to change your java version to you rnew jdk7 by changing the CLASSPATH environment variable? See how here
Here is a picture of the 2 files in question, one .atb and one .jar
If i just click the jar file, it opens my program smoothly, no questions asked.
If i click the New Text Document and choose "y" as my default program, it says this:
If i do all this with .txt as file extension it says the same, still doesn't work.
If i do all this in Windows 7 with the same setup, it all works fine.
Also i checked my event logs when this occurs and this pops up as a keyword "Audit Success" with the text: "An attempt was made to query the existence of a blank password for an account."
Do you have any idea what might cause this?
You can't associate file extensions to trigger a .jar file on Windows. The only file types you can trigger on Windows are .exe, .pif, .com, .bat, .cmd, so instead of triggering the .jar file, you can trigger a .bat file, which then launches the .jar file.
Create a y.bat file and place it next to your y.jar file and write the following code inside it:
#echo off
title y
start javaw -jar "C:\Users\SomeUsername\Desktop\y.jar" %1
You can change the title and y.jar path as you please, just remember that the path need to be the absolute path. Though the real keyword here is %1, that is the actual path, of the file you clicked.
You can get the value of any parameter using a % followed by it's numerical position on the command line. The first item passed is always %1 the second item is always %2 and so on
%* in a batch script refers to all the arguments (e.g. %1 %2 %3 %4 %5 ...%255)
Now you can simply right-click on any .abt file and press "Open With...", remember to check "Use this app for all .abt files" and then just browse for the y.bat and click "Open". Now each time you double-click a .abt file it will launch your .jar program.
Additionally I've written this post (Associate File Extension with Java Application) after writing this answer.
You can get by without a bat file by running from the command line (with admin privileges)
assoc .xox=Xoxfile
ftype Xoxfile=C:\Program Files\Java\jre1.5.0\bin\javaw -jar c:\dev\work\y.jar %1
(correcting for the path to your current jre and path to your jar).
Since .txt is already a defined filetype in windows, I think you could skip the assoc command and replace Xoxfile above with
ftype "Text Document"=C:\Program Files\Java\jre1.5.0\bin\java -jar c:\dev\work\y.jar
but I've only done this with a new custom file type.
https://www.rgagnon.com/javadetails/java-0592.html
I had a silly issue with a .JAR opening. After running "java -jar MyApp.jar", I came to the realization that it was not launching the gui as my preferences file was not in the same path as the .jar file.
Adding a check for if(!file)then create new file... the app worked as expected and became easier to port/share.
I have Java GUI application in Java SE version 7 which I run on Windows 7 64 bits. When I try to run it clicking on jar file the pop up Window is saying 'Cannot find the main class or load it:...'. When I run the same jar file via command line in this way: java -jar app.jar' it works fine. If you try to run it in this way: 'java app.jar' it throws the same error. On Eclipse IDE it works fine. The jar file has been created by the Eclipse IDE as Running jar file. I have created one more project with simple GUI. It has the same problems as above example. What might be the problem? My goal is to run the app once you click on the jar file.
Best regards
Sounds like on your system the .jar extension is registered to run with Java6 and your application needs Java7.
On the commandline type the following command to find out how the .jar extension is registered:
assoc .jar
It will show something like this:
.jar=jarfile
(Note: on your system it might be a different type name. Anything after the = is the typename that you need to use)
Now you need to find out which command is associated with the typename jarfile by using:
ftype jarfile
On my system it shows:
jarfile="C:\Programme\Java\jre7\bin\javaw.exe" -jar "%1" %*
If that is not pointing to a Java7 installation you need to change that e.g. through the ftype command or through the Control Panel.
You might also be able to switch the default Java VM by using the "Java" applet in the Control Panel.
You need to make a manifest file, under the Meta-INF folder. If there's already one there, add the line
main-class: [class name].class
And try that (not sure if there's supposed to be a space after the colon)
I have a JAR file named helloworld.jar.
In order to run it, I'm executing the following command in a command-line window:
java -jar helloworld.jar
This works fine, but how do I execute it with double-click instead?
Do I need to install any software?
Easiest route is probably upgrading or re-installing the Java Runtime Environment (JRE).
Or this:
Open the Windows Explorer, from the Tools select 'Folder Options...'
Click the File Types tab, scroll down and select JAR File type.
Press the Advanced button.
In the Edit File Type dialog box, select open in Actions box and click Edit...
Press the Browse button and navigate to the location the Java interpreter javaw.exe.
In the Application used to perform action field, needs to display something similar to C:\Program Files\Java\j2re1.4.2_04\bin\javaw.exe" -jar "%1" % (Note: the part starting with 'javaw' must be exactly like that; the other part of the path name can vary depending on which version of Java you're using) then press the OK buttons until all the dialogs are closed.
Which was stolen from here: http://windowstipoftheday.blogspot.com/2005/10/setting-jar-file-association.html
In Windows Vista or Windows 7, the manual file association editor has been removed.
The easiest way is to run Jarfix, a tiny but powerful freeware tool. Just run it and your Java apps is back... double-clickable again.
If you need to distribute your .jar file and make it runnable at other people's Windows computers,
you can make a simple .bat file like this in the command prompt:
java -jar MyJavaTool.jar
and place the .bat file in the same directory as your .jar file.
If you have a jar file called Example.jar, follow these rules:
Open a notepad.exe
Write : java -jar Example.jar
Save it with the extension .bat
Copy it to the directory which has the .jar file
Double click it to run your .jar file
An interesting side effect of this causes a problem when starting runnable jar files in the command prompt.
If you try (in a command prompt):
jarfile.jar parameter
No joy, because this is being translated to the following (which doesn't work):
javaw.exe -jar jarfile.jar parameter
However, the following command does work:
java.exe -jar jarfile.jar parameter
If you change the association in file manager as described above to:
"C:\Program Files\Java\j2re1.4.2_04\bin\java.exe" -jar "%1" %*
Then you can type:
jarfile.jar parameter
in the command prompt and it will now work!
EDIT:(However you then get a black console window when you run a form based (non console) Java app, so this is not an ideal solution)
If you run these jar files by double clicking them in windows, no parameters will be passed so your Java code needs to handle the stack overflow exception and include a "press a key" function at the end or the window will just disappear.
In order to pass a parameter in windows you have to create a shortcut to the jar file, which includes the parameter in the target line (right click on the shortcut and select properties) you can not add parameters to the jar file icon itself in this way.
There isn't a single, consistent solution here, but you would have the same problem with any other console application.
There is a windows freeware application called "bat to exe" which you can use to create an exe file from a .bat file with the apropriate command line in it. you can also embed the jar file in the exe with this application, and make it clean it up when it has finished running, so this may be a more elegant solution.
First set path on cmd(command prompt):
set path="C:\Program Files\Java\jre6\bin"
then type
java -jar yourProgramname.jar
In Windows XP * you need just 2 shell commands:
C:\>ftype myjarfile="C:\JRE1.6\bin\javaw.exe" -jar "%1" %*
C:\>assoc .jar=myjarfile
obviously using the correct path for the JRE and any name you want instead of myjarfile.
To just check the current settings:
C:\>assoc .jar
C:\>ftype jarfile
this time using the value returned by the first command, if any, instead of jarfile.
* not tested with Windows 7
In regedit, open HKEY_CLASSES_ROOT\Applications\java.exe\shell\open\command
Double click on default on the left and add -jar between the java.exe path and the "%1" argument.
There is way without requiring user to do changes on his PC. Runtime.getRuntime.exec() allows us to start cmd.exe and execute commands inside of it. So, it's possible for java program to run itself in command prompt when user clicks .jar file.
public static void main(String[] args) throws IOException {
if(args.length == 0) {
Process p = Runtime.getRuntime().exec("cmd.exe /c start java -jar " + (new File(NameOfClass.class.getProtectionDomain().getCodeSource().getLocation().getPath())).getAbsolutePath() + " cmd");
} else {
//code to be executed
}
}
Besides all of the other suggestions, there is one other thing you need to consider. Is your helloworld.jar a console program? If it is, then I don't believe you'll be able to make it into a double-clickable jar file. Console programs use the regular cmd.exe shell window for their input and output. Usually the jar "launcher" is bound to javaw.exe which doesn't create a command-shell window.
I´m running Windows 7 x64 and was unable to use any of these fixes.
This one worked for me afterall:
http://thepanz.netsons.org/post/windows7-jar-file-association-broken-with-nokia-ovi
There is an archive which you can download containing a .bat file to run, but check the path of the actual javaw.exe!!!!
You want to check a couple of things; if this is your own jar file, make sure you have defined a Main-class in the manifest. Since we know you can run it from the command line, the other thing to do is create a windows shortcut, and modify the properties (you'll have to look around, I don't have a Windows machine to look at) so that the command it executes on open is the java -jar command you mentioned.
The other thing: if something isn't confused, it should work anyway; check and make sure you have java associated with the .jar extension.
Unfortunatelly, it is not so easy as Microsoft has removed advanced file association dialog in recent Windows editions. - With newer Windows versions you may only specify the application that is going to be used to open .jar file.
Fixing .jar file opening on Windows requires two steps.
Open the Control Panel, and chose "Default Programs -> Set Associations". Find .jar extension (Executable JAR file) there, and pick Java as default program to open this extension. It will probably be listed as "Java Platform(SE)". A faster alternative perhaps is straightforward right-click on a .jar file, and then change associated program by clicking on the "Change..." button.
Now open the regedit, and open the HKEY_CLASSES_ROOT\jarfile\shell\open\command key. Luckilly for us, we may specify parameters there for the (Default) value. On my Windows system it looks like: C:\app\32\jre7\bin\javaw.exe" -jar "%1" %* but in most cases it is the following string: C:\Program Files\Java\jre7\bin\javaw.exe" -jar "%1" %*
NOTES:
Do not use java.exe there as it will open the shell window.
The jarfix tool mentioned in this thread most likely does nothing more than the registry modification for you. I prefer manual registry change method, as that implies that system administrator can "push" the registry change to all workstations in the network.
Create .bat file:
start javaw -jar %*
And choose app default to open .jar with this .bat file.
It will close cmd when start your .jar file.
Got the same problem, on Windows 10
The solution:
Check your JAVA_HOME and JAVA_PATH.
https://javatutorial.net/set-java-home-windows-10
Use Jarfix to restore the assiciation between .jar and javaw.exe
https://johann.loefflmann.net/en/software/jarfix/index.html
I had the same problem in Windows 10. I fixed it using righ-click on the "helloworld.jar" and go to properties and click on change button under "Opens with:" and select "Look for another app on this PC". In the "Open with..." dialog box, go to your Java folder location on your PC and open corresponding jdk folder and then open the bin folder and select "javaw.exe" from there. Then next time your "helloworld.jar" will open the normal way.
Usual java location example : "C:\Program Files (x86)\Java\jdk1.8.0_111\bin".
Another way to run jar files with a click/double-click, is to prepend "-jar " to the
file's name. For example, you would rename the file MyJar.jar to -jar MyJar.jar.
You must have the .class files associated with java.exe, of course. This might not work in all cases, but it has worked most times for me.
PreScript: If your prompt appears and disappears immediately, the reason it does so is that your program gets executed and auto shut. Try putting a scanner in the end to terminate and it'll keep your prompt waiting for input before terminating. (Or use delay maybe)
Was in the very same situation, where running .jar from cmd was working fine, but double clicking did nothing.
Solution:
Open any text editor and write the command line:
java -jar Example.jar
Save the file as a .bat file.
Run this bat file to get the needed output.
Taking it one step forward, you can convert this bat file to exe file using a simple GUI tool like Bat To Exe Converter.
Now you can share your .jar as a distribution in .exe file which anyone can use just make sure you keep all the files together. (Especially the .jar and .bat file cause .bat is only a cmd prompt)(How it feels logical)
I am fairly new to development and learning a lot. Please excuse for any mistakes if committed. Suggestions are welcome.
If you use eclipse for making your java files, you can choose to export it as a runnable jar file. I did this with my programs and I can just click on the jar and it will run just like that. This will work on both windows, as well as os x.
Making a start.bat was the only thing that worked for me.
open a text document and enter. java -jar whatever yours is called .jar
save as start.bat in the same folder as the .jar file you want to execute. and then run the. bat
If you need to run the jar file by double clicking on it, you have to create it as a "Runnable JAR". you can do it simply with your IDE.
If you're using eclipse, follow these steps :
To create a new runnable JAR file in the workbench:
1.From the menu bar's File menu, select Export.
2.Expand the Java node and select Runnable JAR file. Click Next.
3.In the Opens the Runnable JAR export wizard Runnable JAR File Specification page, select a 'Java Application' launch configuration to use to create a runnable JAR.
4.In the Export destination field, either type or click Browse to select a location for the JAR file.
5.Select an appropriate library handling strategy.
Optionally, you can also create an ANT script to quickly regenerate a previously created runnable JAR file.
more information can be found on Eclipse help Page: LINK
There are many methods for running .jar file on windows. One of them is using the command prompt.
Steps :
Open command prompt(Run as administrator)
Now write "cd\" command for root directory
Type "java jar filename.jar"
Note: you can also use any third party apps like WinRAR, jarfix, etc.
Steps:
1.) search for Java SE Runtime Environment on Google: https://www.google.com/search?q=Java+SE+Runtime+Environment
2.) install the appropriate version onto your computer
For compiling:
javac -cp ".;./mysql-connector-java-5.0.8.jar;mybatis-3.0.1.jar;ibatis-2.3.0.677.jar" MainStart.java
For running:
java -cp ".;./mysql-connector-java-5.0.8.jar;mybatis-3.0.1.jar;ibatis-2.3.0.677.jar" MainStart
use .bat file:
Put your command in a .bat file. here, your command will be java -jar path\yourJarName.jar.
Something like: java -jar C:\workspace\myApplication.jar
Save it and double click on bat file to run your jar.
Actually, I faced this problem too. I got around it by making a .bat runner for my jar file.
Here is the code:
class FileHandler{
public static File create_CMD_Rnner(){
int exitCode = -1625348952;
try{
File runner = new File(Main.batName);
PrintWriter printer = new PrintWriter(runner);
printer.println("#echo off");
printer.println("title " + Main.applicationTitle);
printer.println("java -jar " + Main.jarName + " " + Main.startCode );
printer.println("PAUSE");
printer.flush();
printer.close();
return runner;
}catch(Exception e){
System.err.println("Coudln't create a runner bat \n exit code: " + exitCode);
System.exit(exitCode);
return null;
}
}
}
Then in Your Main application class do this:
public class Main{
static String jarName = "application.jar";
static String applicationTitle = "java Application";
static String startCode = "javaIsTheBest";
static String batName = "_.bat";
public static void main(String args[]) throws Exception{
if(args.length == 0 || !args[0].equals(startCode)) {
Desktop.getDesktop().open(FilesHandler.create_CMD_Rnner());
System.exit(0);
}else{
//just in case you wanted to hide the bat
deleteRunner();
// Congratulations now you are running in a cmd window ... do whatever you want
//......
System.out.println("i Am Running in CMD");
//......
Thread.sleep(84600);
}
}
public static void deleteRunner(){
File batRunner = new File(batName);
if(batRunner.exists()) batRunner.delete();
}
}
Please Note that
this code (my code) works only with a jar file, not a class file.
the jar file must have the same name as the String "jarName" is the Main class