How to create and run a HelloWorld Java SE Application Project using Netbeans IDE

In this java tutorial, we shall learn how to create and run a basic " Hello World " Java SE application project using famous Netbeans ide. Java SE application based on Java platform standard edition which is also known at Java SE. With the help of  Java SE, we can develop multi-platform desktop applications which can run on different operating systems like Microsoft windows, Solaris, Linux and any other operating system.  

This tutorial is very helpful for students and new developers who want to learn Java Applications development. There are different methods and tools to create a java SE project, I have selected Netbeans IDE because it is easy and better support for Java project creation, build, run and java codes completion support etc.

Netbeans IDE creates a Java SE project which has group of source files and all the settings which are required to build, run, and debug those source files.

Now, follow below steps to create and run a java se project.

1- Open your Netbeans IDE, Click on File ->New Project (Ctrl + Shift + N ). A new project window will be opened for further step. 

2- At  Categories section, click at Java, on right side Projects section, Netbeans ide has built in following standard templates:

• Java Application : An empty Java SE project with a main class.
• Java Class Library : An empty Java class library with no main class.
• Java Project with Existing Sources : A Java SE project with existing sources.

Select Java Application and then click on Next.

Here give the Project name, Project Location and Project Folder. Here you can customize the main class name. Now click at Finish button to create Java Project Files.

All necessary projects have been created as showing in below image. By default main java class MyJavaApplication.java is created with necessary codes as showing below

public class MyJavaApplication {

    /**

     * @param args the command line arguments

     */

    public static void main(String[] args) {

        // TODO code application logic here

    

    }

}

Write the System.out.println("Hello To JAVA World"); code inside main function body as showing below.  this code will display output as Hellow to JAVA World.

public class MyJavaApplication {

    /**

     * @param args the command line arguments

     */

    public static void main(String[] args) {

        // TODO code application logic here

   

    System.out.println("Hello To JAVA World");

    

    }

    

}

Now Right Click at MyJavaApplication Project and click on Run option. Or Click on Run button showing in below diagram. 

Run Option: Run option will build the java code and then run the application

Build Option: By clicking on Build option, java code will be built and .class file will be created only. But program does not run.

Output of said java code will display in Output window as showing below. Congratulation, you have been successfully create a java se project, write java code, build / compile and run it. In this way, now you can create other java classes and codes inside this project for building your custom java desktop applications.

Below are the Project Files, here are three major folder which are build, nbproject and source. Major files are MyJavaApplication.java,  MyJavaApplication.class, build-imp.xml, genfiles.properties, project.properties, build.xml and manifest.mf.