Print "Hello World" in JAVA

 Que: Print "Hello World" in JAVA

Introduction

If you are starting programming with Java, the first program you usually learn is the Hello World program. It is a simple program used to understand the basic structure of Java code and how a program runs.

This example prints “Hello World” on the screen and helps beginners understand the basic syntax of Java.
Steps: 

1. Open Bluej and click on "New Class".
   
   
   
2. Then open a dialog box, write name of the class and press OK button.
   
   
   
3. Now right click on the file name and click on "Open Editor".
   
   
   
4. After open editor, write your code and click on "Compile" button. If there any error shown then correct it and compile again.
5. Close the editor. Now right click on file name and choose "void main(String arg[])" to run.
   
   
   
6. You can see another dialog box, click on "OK" button and output(Terminal) will be shown.
   
   
   
   

 Explanation of the Program

1. 1. public class HelloWorld

   • In Java, every program must be inside a class.

   • HelloWorld is the name of the class.

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   2. public static void main(String arg[])

   This is the main method where the execution of a Java program begins.

   • public → Access modifier that allows the program to run from anywhere.

   • static → Allows the method to run without creating an object.

   • void → Means the method does not return any value.

   • main() → The starting point of the program.

   • String arg[] → Used to receive command-line arguments.

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   3. System.out.println("Hello World");

   • System → A built-in class in Java.

   • out → Output stream.

   • println() → Prints text and moves the cursor to the next line.

   This statement prints Hello World on the console.

   😎If you have any doubts or questions about this program, please leave a comment in the comment section. I will try to respond as soon as possible.
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