How to Create a Hello World Program using IntelliJ IDEA Community Edition: A Step-by-Step Guide

How to Create a Hello World Program using IntelliJ IDEA Community Edition

Prerequisites

Before we get started, you need to have the following installed on your computer:

Java Development Kit (JDK) version 8 or later.
IntelliJ IDEA Community Edition installed on your computer.

Step 1: Create a New Project

Open IntelliJ IDEA Community Edition and click on "Create New Project" from the welcome screen or go to "File" > "New" > "Project".

Create New Project

In the "New Project" dialog, select "Java" from the list of project types on the left-hand side. Then, select the version of the JDK that you have installed on your computer and click on "Next".

Select Project Type

Step 2: Configure Project Settings

In the "Project SDK" section, make sure the JDK that you have installed is selected. Then, click on "Next".

Configure Project Settings

Step 3: Create a New Java Class

In the "Create New Class" dialog, enter "HelloWorld" as the class name and click on "OK".

Create New Class

IntelliJ IDEA will create a new Java class file with the name "HelloWorld.java" and the following content:


public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello, World!");
    }
}

Step 4: Run the Program

Click on the green "Run" arrow in the top-right corner of the window to run the program.

Run the Program

You should see the output "Hello, World!" in the console window

Comments

JSP page directives

A jsp page directive looks like this: <%@ directive attribute="value" %> I am not gonna explain each and every page directives here . I would like to discuss about two page directives which is import and include. First of all consider the import directive . The following simple program illustrate the use of import page directive: The output would be something looks like this: <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ page import="java.util.Date" %> //page directive <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Jsp Basics</title> </head> <body> <%=new Date() %> </body> </html> Tue Nov 12 17:42:34 I...

spring boot CORS filter along with spring security and OAuth2 (@EnableOAuth2Sso)

spring boot CORS filter along with spring security and OAuth2 (@EnableOAuth2Sso) import org.springframework.stereotype.Component; import javax.servlet.*; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException;

a simple example for jdbc PreparedStatement

a simple example for PreparedStatement package basics.in.java.blogspot.in; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; public class Main { private static final String USERNAME="root"; private static final String PASSWORD=""; private static final String CONN_STRING="jdbc:mysql://localhost/basicsinjavablogspot"; public static void main(String[] args) throws ClassNotFoundException, SQLException { Class.forName("com.mysql.jdbc.Driver"); Connection conn=null; Statement stmt=null; ResultSet rs=null; try { conn= DriverManager.getConnection(CONN_STRING, USERNAME, PASSWORD); System.out.println("database connection successful"); //stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY); String sql="select * fr...

Basics In Java

Search This Blog