RunJava

RunJava is a simple command-line tool that helps you execute Java files with command-line arguments using a single command.

Combining the compilation and execution steps into a single command can save you time and make your workflow more efficient.

Note: This script is intended for use with Git Bash on Windows, but it should work on other Unix-like systems as well.

Usage

The basic syntax for using RunJava is:

runjava [class_name] [args...]

Example

For example, if you have a Java file named HelloWorld.java with a main method that takes a single argument, you can run it using the following command:

before:

$ javac helloWorld.java
$ java HelloWorld arg1

After:

$ runjava HelloWorld arg1

Installation Steps:

RunJava is a shell script and does not require any installation process. You can save the script below as runjava.sh and make it executable using the following command:

1. Find your root directory of Git Bash installation and go to /usr/bin. For my case, full path is : C:\Program Files\Git\usr\bin

2. Copy the provided script there (you will need Administrator rights). runjava.sh

3. Open Git Bash as an Administrator and give your script executable right :

   chmod +x /usr/bin/runjava.sh

4. Create a symbolic link to the script:

   ln -s /usr/bin/runjava.sh /usr/bin/runjava

   OR

   you could add the following line to your .bashrc or .bash_profile file:

   alias runjava='runjava.sh'

   Then, run the following command to apply the changes:

   source ~/.bashrc

5. Now you can run the script from anywhere in Git Bash by typing runjava class_name.