I want to run my java project which i've built using Eclipse IDE. Now my goal is to create a batch file which will execute my project with one click. i referred question , but didn't get any idea. Please give me a solution. Thanks in advance.
Because you are working in eclipse, this makes things easier. First, export the whole program as a executable jar. You can do this by going to Files>Export and then in the pop up go to Java>Runnable Jar. Then follow the steps required to make it. Next you make a .bat file and write the following code.
start javaw -jar NameOfJar.jar
Make sure that you put the file in the same directory as your jar. Now you should be able and click on the .bat and execute the program!
1.Open Notepad & write
#echo off
javac YOUR_JAVA_FILENAME.java
java YOUR_JAVA_FILENAME
2.Save-As executeJavaProgram.bat
Make sure that YOUR_JAVA_FILENAME.java resides with your batch file and java path is set in environment variable.
3 . Double click on batch file.
Follow this tutorial to create a jar file of your eclipse project.
After doing it create a batch file in the same folder where you exported the jar with the command: java -jar yourjar.jar
Create jar file using eclipse i.e right click on your project select export jar file then provide file name to store your jar file. In this file eclipse will keep all .class file only and in META-INF folder main class definition if your are creating executable jar file.
Related
Runnable jar file not producing output to ouput file.
The code works fine when running in eclipse.
This code writes some data to a text file.
Please help.
I created the runnable jar file using export option.
Thanks
If the code is running correctly in Eclipse then there is no problem in code.You have to first build the jar using Ant or Maven.Then you can place all the dependencies(jars) in the appropriate directory by creating a lib folder.Then place your jar in that same directory with all the config files.Then open your terminal(Command), go to the appropriate path and try 'java -jar YourProjctName.jar'.
I need to execute a jar file using a .bat file. The problem occurs here:
"java -Djava.library.path=timer -classpath .;timer\timer.jar"
There is a folder called "timer" within the folder in which I execute the .bat file and which contains the timer.jar. The jar is executed but it isn't using the timer I wanted it to use, instead I get a debug message that it wasn't possible to load the library and the program used the standard timer. I tried to add the library to the classpath manually, but that didn't work either. What am I doing wrong?
the simplest way is to use a manifest file within the main jar to load all libraries.
using ide like netbeans or eclips will help.
I write a very simple java program with two classes: Business and Main.
I want to create a jar such that if I email it to someone they can:
run the program (i.e. run the jar)
open the jar to view the source code.
the code can run on mac or windows
I have been using IDEs for so long I have forgotten how to do this.
I am using netbeans 7.x
EDIT:
I found the following way on Netbeans:
properties > packaging > exclude from jar file :: delete **/*.java
But when I try to execute the jar using
java -jar mybusiness.jar
it says
no main manifest attribute, in mybusiness.jar
But note that my jar has a main class. Am I missing a manifest file?
You can export a JAR file that includes the source code using Netbeans:
Right click on the project and select properties
Build -> Packaging
Remove Java files from the excluded files. And select build jar after compiling
It will create the jar file that includes the source code if it successfully compiles.
Well surely an IDE can do this too?. Just make some text files and put the source into them and drag them into the ide's. It's java so it should automatically run on all platforms. I am not sure what the problem is here?
This link explains how do u create manifest file and how do you specify your main class in manifest file as its necessary for executing jar.
I've made a program to help me out with some stuff, but every time I need it, I open Eclipse and Run it.
Is it possible to create an executable file so I won't need to open Eclipse every time?
The commands I use is basically System.out.println() and Scanner to read what I type.
Right-click on project.
Export as runnable jar.
File -> Export -> Java -> Runnable JAR File
You'll have to choose the main class that you want it to run. This will allow you to double-click on the JAR, and have it run that main.
You can File > Export > JAR file to export your project as a jar and put the java command to run the jar on a windows batch file. Alternatively you can File > Export > Runnable JAR file
You can either create an executable jar file (using eclipse, or a build tool like "ant" or "maven") or you can also create a "real" Windows-executable file (which you can also give to customers/friends).
I am using JSmooth a lot ( http://jsmooth.sourceforge.net/ ) - this builds a wrapper around your jar-files and can help the user with downloading and installing an appropriate java virtual machine version.
Probably the executable jar (see answer of Serplat) file is what you need :)
How do I run a .jar executable java file from outside NetBeans IDE? (Windows Vista). My project has a .jar file created by Netbeans. We'd like to run it. Either: how do we run the file or how do we create a 'proper' executable file in NetBeans 6.1?
Running a jar is as simple as
java -jar filename.jar
as Laplie said, java -jar your.jar
EXECUTABLE file : see this thread for answers How can I convert my Java program to an .exe file?
One of the best technique to run the jar file or jar jar file
Create the jar file by jar command choose your jar filename
Java_Jar_File.jar
Run the jar file us the command like java -jar Java_Jar_File.jar
You can do it from the command prompt if java isn't in your path by finding the full path to your java install, something like:
C:\java\java.exe -jar C:\jar_you_want_to_run.jar
or if java is in your path:
java.exe -jar jar_you_want_to_run.jar
This will run the jar produced by netbeans.
First, make sure you set the Main Class in your NetBeans project properties dialog.
Then, you can either
Double-click the jar file (This should work on any machine with an installed JRE)
or
Make sure that java.exe is in the path (or replace java below with the fullpath and file name of the executable), put the following in a batch file:
java -jar filename.jar
Then you can double-click the batch file instead of the jar (useful if you have people unaccustomed to using naked jar files)
OR
You can go down the path described here How can I convert my Java program to an .exe file? to build a .exe for windows.
Make a BAT file with
java -jar filepath.jar
from a command prompt you can run this command: java -jar your_jar.jar.
To run a java jar file its file association should be properly configured. There is a free tool called jarfix to fix all jar file association problems. Run this file to fix all jar issues.
In the project properties dialog in NetBeans you need to set the Main Class - otherwise the generated .jar will not be executable. Then, as already indicated, either double clicking on the .jar or the command java -jar will start the program.
If you have problems with running your jar, make sure you are trying to run your current version to get newest version in Netbeans: GoTo Run Menu --> Clean and build