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Compile the Java program with the javac command as shown below. Be warned that you won’t see anything happen. However, if you use the dir command, you’ll notice a new file in your directory ending in ...
Another easy option is to run a JAR file in cmd, your PC’s built-in command-line tool. All you need to do is input a command while running the app with admin rights, and the file will be opened. The ...
Step 2: Name the file FirstJavaProgram.java and save it. You might be asking why we called the file FirstJavaProgram; the reason is that the file should always be named the same as the public class ...
3] Run a Java or JAR file. Now when you double click on the JAR file, it will automatically run like how EXE files execute. If there is a problem with version, the file should inform you.
As long as you have Java installed, and the PATH variable points to the \bin directory of the JDK, you issue the following command to run a JAR file at the command line: java -jar jarfilename.jar.
Now, open the Command Prompt and run it as administrator. We will make use of the ‘cd’ command to change the operating directory on the Command Prompt to the one where your Java program is stored.
Conclusion, running a Java Program from the Command Prompt is straightforward, but it requires a few steps. To do that, you need to write code in a text editor, compile the code using the javac ...
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