Advertisement

Google Ad Slot: content-top

Java Install


Here’s a step-by-step guide to install Java, create a Java file, compile it, and run it:


Install Java:

Download the JDK (Java Development Kit):

Install the JDK:

  • Follow the installation instructions for your OS.
  • Make sure to note the installation path (e.g., C:\Program Files\Java\jdk-XX).

Set Environment Variables (Windows):

  • Add the bin folder of your JDK to the system PATH:
  • Go to System Properties > Advanced > Environment Variables.
  • Add C:\Program Files\Java\jdk-XX\bin to the Path variable.
  • Verify installation by opening Command Prompt and typing:java -version.

Create a Java File:

  • Open a text editor (Notepad, VS Code, or IntelliJ IDEA).
  • Write a simple Java program
  • Save the file as Main.java in a directory of your choice.
Example
// Main.java
public class Main {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}
Try it yourself

Compile the Java File:

  • Open a terminal or Command Prompt.
  • Navigate to the directory where your Main.java file is located: cd path\to\Your\file
  • Compile the Java file using the javac compiler: javac Main.java
  • This will generate a Main.class file in the same directory.

Run the Java Program:

  • Run the compiled Java program using the java command: java Main
  • Output: Hello world