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  1. 123

    Running a Java program from the Command Prompt is a straightforward process that involves compiling the Java source code and then executing the compiled bytecode. Here’s a step-by-step guide to help you get started.

    Step 1: Install the Java Development Kit (JDK)

    Before you can run a Java program, you need to have the Java Development Kit (JDK) installed on your computer. The JDK includes the Java compiler and other necessary tools. You can download the JDK from Oracle’s official website.

    Step 2: Write a Java Program

    Create a simple Java program using a text editor like Notepad. Save the file with a .java extension. For example, create a file named HelloWorld.java with the following content:

    public class HelloWorld {
    public static void main(String[] args) {
    System.out.println("Hello, World!");
    }
    }
    Copied!

    Step 3: Open Command Prompt

    Open the Command Prompt from the Windows Start Menu. Make sure to run it as an administrator to avoid any permission issues.

    Step 4: Navigate to the Program Directory

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  2. WikiHow
    https://www.wikihow.com › Compile-&-Run-Java-Program...

    How to Compile and Run a Java Program Using Command Prompt

    An easy-to-follow guide to compiling and running your Java code with CMD
    While many programming environments will allow you to compile and run a program w…
    Compiling and Running

    using a simple text editing program like Notepad or an independent development environment (IDE) such as Eclipse. It's recommended you save the filename as the name of the Java class. Be sure to add the ".java" file extension to the file.

    Troubleshooting

    If you are running a simple program with all the files in the same directory, you will probably not need to do this. However, if you are running a more complex program with files in multiple directories, you will need to tell the computer where to look fo…

  4. javathinking.com
    https://www.javathinking.com › blog › how-do-i-run-a...

    How to Run a Java Program from Command Line on Windows: Step-by …

    Jan 16, 2026 · In this tutorial, we’ll walk through **every step** to run a Java program on Windows, including setting up your environment, writing a simple file copy program, compiling it, and executing it.

  5. GeeksForGeeks
    https://www.geeksforgeeks.org › java › java-program...

    Java Program to Open the Command Prompt and Insert …

    Apr 22, 2025 · Every Java application has an object of this class, this class provides exec () method and this method is used to run system commands. In this article, …

  6. Stack Overflow
    https://stackoverflow.com › questions › how-

    How do I run a Java program from the command line on …

    Apr 22, 2013 · You can actually run Java program as you would shell or python …

    • Reviews: 11
    • TechBloat
      https://www.techbloat.com › how-to-run-java-code-in-cmd.html

      How to Run Java Code in CMD - TechBloat

      Dec 8, 2025 · Getting Java to run in Command Prompt is straightforward once you understand the steps. Here’s a practical guide based on real-world experience — no fluff, just the essentials.

    • javaspring.net
      https://www.javaspring.net › blog › how-to-run-java-program-in-cmd

      How to Run a Java Program in the Command Prompt

      Jan 16, 2026 · Running a Java program in the Command Prompt is a fundamental skill for Java developers. By understanding the basic concepts of the Java compiler (javac), the Java Virtual …

    • codingtechroom.com
      https://codingtechroom.com › question › -execute-java...

      How to Execute a Java File and Capture Output from the Command …

      Learn how to run a Java file from the command prompt (cmd) and capture its output with detailed steps and code examples.

    • Make Tech Easier
      https://www.maketecheasier.com › run-java-program...

      How to Run a Java Program from the Command Prompt

      Jul 16, 2025 · If your Windows Command Prompt doesn’t show the results of a Java command you’ve entered, there are two solutions: run the Command Prompt in …

    • Baeldung
      https://www.baeldung.com › run-shell-command-in-java

      How to Run a Shell Command in Java - Baeldung

      Jan 8, 2024 · Quick guide to how to two ways of running a shell command in Java, both on Windows as well as on UNIX.

    • tpointtech.com
      https://www.tpointtech.com › how-to-run-java-program...

      How to Run Java Program in CMD Using Notepad

      1 day ago · In this section, we will learn how to save, compile, and run (execute) a Java program in Command Prompt (CMD) using notepad. Before running …

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