Introduction

Java applets are small programs written in the Java programming language that can be embedded into webpages and run in web browsers. If you want to run a Java applet from the command prompt, you can do so by using the Java Runtime Environment (JRE). This article will explain how to run Java applets from the command prompt using the JRE. It will also provide some tips on troubleshooting any issues that may arise.

Solution

You can run Java applets from the command prompt by using the Java Runtime Environment (JRE). The JRE is a set of tools that allow you to run Java programs, including applets. To run an applet from the command prompt, you need to first compile the applet using the javac command. Once the applet is compiled, you can run it using the java command. For example, if your applet is named MyApplet.java, you would compile it using the following command:

javac MyApplet.java

Once the applet is compiled, you can run it using the following command:

java MyApplet

If you’ve compiled the code successfully. Try using the generated class inside a .html file as:

<html>  
    <body>  
        <applet code="PP2_14.class" width="300" height="300">  
        </applet>  
    </body>  
</html>

Calling it via a main() might need to initialize/override Graphics which I believe you don’t intend to do for now.

How do I run Java applets from Command Prompt?

Running Java applets from the command prompt is a great way to quickly test and debug your code. It can also be used to run applets that are not part of a larger application. Here are the steps to run a Java applet from the command prompt:

Step 1: Compile the Java Applet

The first step is to compile the Java applet. This can be done using the javac command. The syntax for this command is:

javac [options] [source files]

For example, if you have a file called MyApplet.java, you would compile it with the following command:

javac MyApplet.java

Step 2: Run the Applet

Once the applet is compiled, you can run it with the appletviewer command. The syntax for this command is:

appletviewer [options] [applet file]

For example, if you have a file called MyApplet.class, you would run it with the following command:

appletviewer MyApplet.class

Step 3: View the Applet

Once the applet is running, you can view it in the appletviewer window. You can interact with the applet by clicking on buttons, entering text, etc. When you are done, you can close the window to stop the applet.

Conclusion

Running Java applets from the command prompt is a great way to quickly test and debug your code. It can also be used to run applets that are not part of a larger application. By following the steps outlined above, you can easily run Java applets from the command prompt.