click on back button of browser using selenium code example

Example: back and forth in selenium

We use navigate method (navigate is an abstract method 
of Webdriver interface) to navigate back and forth in a browser. 
It has methods to move back, forward as well as to refresh a page.
forward, to.. are abstract method of Navigate interface

driver.navigate().to(“url”); –
to launch a new web browser window and navigate to the specified URL
driver.navigate().forward(); –
to navigate to the next web page with reference to the browser’s history
driver.navigate().back(); – 
takes back to the previous webpage with reference to the browser’s history
driver.navigate().refresh(); – 
to refresh the current web page thereby reloading all the web elements