Running JAR file on Windows

Question

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

User · Answer

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

User · Answer

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

User · Answer

In Windows XP   you need just 2 shell commands      C   gt ftype myjarfile  C  JRE1 6 bin javaw exe  -jar   1         C   gt 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   gt assoc  jar      C   gt ftype jarfile     this time using the value returned by the first command  if any  instead of jarfile     not tested with Windows 7

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

First set path on cmd command prompt    set path  C  Program Files Java jre6 bin    then type  java -jar yourProgramname jar

User · Answer

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

User · Answer

Actually  I faced this problem too  I got around with 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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

Actually  I faced this problem too  I got around with 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

User · Answer

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

User · Answer

First set path on cmd command prompt    set path  C  Program Files Java jre6 bin    then type  java -jar yourProgramname jar

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

In Windows XP   you need just 2 shell commands      C   gt ftype myjarfile  C  JRE1 6 bin javaw exe  -jar   1         C   gt 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   gt assoc  jar      C   gt ftype jarfile     this time using the value returned by the first command  if any  instead of jarfile     not tested with Windows 7

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

[java] Running JAR file on Windows

Examples related to java

Examples related to jar

Examples related to executable-jar