There are basic three steps to run a Selenium Project in java. I have learned from Edureka youtube channel. Setup credit credit goes to Software Testing Mentor

1. Java installation
2. Eclipse Installation
3. Selenium Installation.

Java Installation

• Install JDK – download it from Oracle you have an account to download. After download install it. Both JDK and JRE have installed.
• Configure Environment Variables. Please see the video to configure environment veriables.

Eclipse Installation

• Download Eclipse for JEE Developer from Eclipse IDE
• Extract Zip File
• Run the application as administrator.

Install Selenium

• Download required version of selenium from selenium
• Download java client from same selenium url.
• Install chrome and gecko drivers (for Mozilla) for your browser.
• Configure Selenium on your Eclipse.