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Learn how to create and run a `Java management system` project from source code using the command line. This guide will walk you through the essential steps and provide helpful tips for using an IDE.
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This video is based on the question https://stackoverflow.com/q/73964821/ asked by the user 'stnew' ( https://stackoverflow.com/u/20169560/ ) and on the answer https://stackoverflow.com/a/73964925/ provided by the user 'Dylan Lam' ( https://stackoverflow.com/u/13726208/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Successfully Create and Run a Java Project

Embarking on a new programming project can be both exciting and daunting, especially if you're working with Java. If you have a specific project in mind, such as a management system, and you've acquired the source code, the next step is figuring out how to run it. Don't worry; in this post, we will break down the process into manageable steps to help you get your Java project up and running.

Setting the Stage for Your Java Project

Before running your Java project, let’s clarify a few essential terms and items you might need:

What You Need

Source Code: Ensure you have the complete Java source code (.java file) for your project.

Java Development Kit (JDK): You need the JDK installed on your computer. It comes with the tools required to compile and run Java programs.

Integrated Development Environment (IDE): While it’s possible to run Java programs from the command line, using an IDE like IntelliJ IDEA, Eclipse, or NetBeans can greatly simplify your development process.

Using the Command Line to Run Your Java Project

If you prefer not to use an IDE or want to run your Java project from the command line, follow these steps:

Step 1: Open Command Prompt

For Windows, press Win + R, type cmd, and hit Enter.

For Mac/Linux, you can open the Terminal directly from your applications.

Step 2: Navigate to Your Project Directory

Change the working directory in the command prompt to the directory where your Java file is located. For instance, if your Java source code file is named JavaProgram.java and is saved in the C:/ directory, you will type:

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Step 3: Compile Your Java Program

To compile the Java source code, use the javac command followed by the name of your Java file. This step translates your human-readable code into bytecode that the Java Virtual Machine can understand. Type:

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After running this command, you should see no errors if everything is set up correctly.

Step 4: Run Your Java Program

Once compiled, it’s time to run your Java program. Use the java command followed by the name of your compiled class (without the .class extension). For the previous example, type:

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If your program runs successfully, you will see the output displayed in the console.

Step 5: See the Results

Upon executing the above command, check your command prompt window for any output. Congratulations, you’ve just run your Java project!

Additional Tips for Development

Using an IDE: While the command line is powerful, an IDE can provide features like syntax highlighting, error detection, and debuggers that can save you a lot of time.

Practice: Consider working on simple projects before diving into complex ones to strengthen your understanding of Java.

Conclusion

By following this guide, you should now have a clear understanding of how to create and run a Java project from source code, either via the command line or using an IDE. Remember, practice and experimentation are key to becoming proficient in Java programming. Good luck with your project, and happy coding!