java-hello-world-manny.gist

# How to Write Your First "Hello, World!" Application in Java

## 1. Install Java Development Kit (JDK)
- **Download JDK:** Download the JDK suitable for your operating system from this link: [Java JDK 22 for Windows](https://download.oracle.com/java/22/latest/jdk-22_windows-x64_bin.exe).
- **Install JDK:** Follow the installation instructions provided after downloading.

## 2. Set Up Your Environment
- **Configure PATH:** After installing JDK, set the `PATH` environment variable to include the `bin` directory of the JDK installation. This allows you to use Java commands from the command line.
  - On Windows:
    1. Open Control Panel > System and Security > System > Advanced system settings.
    2. Click on "Environment Variables."
    3. Under "System variables," find the `PATH` variable, select it, and click "Edit."
    4. Add the path to the `bin` directory of the JDK installation (e.g., `C:\Program Files\Java\jdk-22\bin`).

## 3. Write the Hello World Program
- **Create a directory:** Create a directory where you want to save your Java program (e.g., `HelloWorld`).
- **Create a Java file:** Open a text editor (e.g., Notepad, VSCode, or any other code editor) and create a new file named `HelloWorld.java`.

## 4. Code the Program
- **Write the following code in `HelloWorld.java`:**
  ```java
  public class HelloWorld {
      public static void main(String[] args) {
          System.out.println("Hello, World!");
      }
  }

So to people who might not know this mean download the java source development kit otherwise known as a SDK download and install the exe. Next create a file named HellowWorld.java and copy everything but ```java, this is just a way to say this code im showing you IS java, copy the rest inside the file using any editor you like. Notepad works just file, vscode is another I like. Next run javac to compile the code into a .class, next run java HellowWorld.java to see the output.