Introduction
This post shows you how to create the first java example program “Hello World”. After this post, you will be able to create a Java project and a Java class that will print “Hello world!” in the console when run. So, let’s get started!
Create a New Java project
We need a create a java project. In the main menu, click on the File -> New -> Java Project button as shown in the below figure:
Enter Project name
Enter the project name for the project name in the dialog box, then click Finish. Give a meaningful name to identify the project. However, you may choose any name of your choice.
Create a New Package
It’s encouraged to specify the package for your class. To create a new package
File -> New -> Package
Packages are folders that hold java classes for better organizing and to avoid naming conflicts. You cannot have the same class more than once in the same package. However, you can have the same class name in a different package.
Create a New Java class
This step is to create a new class. In the main menu, click on the New Java Class button. Enter “HelloWorld” for the class name, then click Finish.
Code the Java Program
Enter the below Java code snippet in the IDE editor for the class :
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello world!");
}
}
Then save your changes File -> Save or by the combination of keys Ctrl + S
Run the Hello World Java application
We can run the java application in many ways. The easiest way is to right-click and run the application as shown below:
Program Output
Check the run output of the program in the console window as shown below. To enable the console window in the Eclipse IDE, go to the main toolbar Windows –> Show View –> Console.
That’s it! we have successfully created a Hello World Java application and run it successfully.
Next Step: Understand Java Program Structure
https://www.testingdocs.com/java-program-structure/
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Java Tutorials
Java Tutorial on this website:
https://www.testingdocs.com/java-tutorial/
For more information on Java, visit the official website :