- #Weka jar file from command line weka.jar how to#
- #Weka jar file from command line weka.jar archive#
- #Weka jar file from command line weka.jar code#
In the command below, three arguments have been passed. To run the executable JAR, we will use the java -jar command and pass the arguments. java file and create the executable and non-executable jar files, as shown in the previous sections. The main() method should print the command-line arguments passed to it. Let's create a new class with a main method. If any argument contains whitespace, then we must enclose that argument in quotes. The arguments should be separated by whitespace. JAR files also contain classes, and we can pass command-line arguments when running a JAR file. These arguments are passed to the main() method of the class through a string array. Running JAR Files with Command-Line ArgumentsĪny Java application can have any number of command-line arguments. The output of this command is shown below. We need to specify the JAR file name and the main class name in the command. Instead of using the -jar option, we will use the -cp option to run a non-executable JAR file. The output of the command is shown below. We can use the following java command with the -jar option to run the executable JAR file. jar -cf HelloWorld.jar HelloWorld.class Running JAR Files Running the Executable JAR File We don't need to pass the name of the manifest file to our command. To create a non-executable JAR file, we will exclude the -m flag. class file shown in the image below was created after running the javac command. And the -m flag will include the content of the manifest file.Īfter executing the above command, a new JAR file with the name HelloWorld.jar is created in our current directory.
The -f flag is used to specify the file name.
#Weka jar file from command line weka.jar archive#
The -c flag is used to create an archive file. jar -cfm HelloWorld.jar ManifestFile.txt HelloWorld.class Next, we can create a JAR file by running the following jar command. The content of the manifest file is shown below. To create an executable JAR file, we also need a manifest file. javac HelloWorld.java Creating an Executable JAR File We first need to run the javac command to create the. java file and the manifest file which will be required for executable JAR. This manifest file contains the name of the class that should be executed when the JAR is run.įor this tutorial, we will work with just a single class whose main method prints Hello World. The difference between the two is that an executable JAR file contains a manifest file, while the non-executable JAR file does not contain this. We can create an executable or a non-executable JAR. Creating JAR FilesĪ JAR file is composed of the compiled Java.
#Weka jar file from command line weka.jar how to#
In this short tutorial, we will learn how to create and run a JAR file in Java.
#Weka jar file from command line weka.jar code#
JAR files are a great way to share and distribute our Java code with others. class files and other metadata and resources needed for the project. JAR files contain compressed Java project files.
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