Uploading files is pretty easy in selenium.Simply go to page where we want to upload the files get the xpath of the browse button.Note the browse button will have a tag name like input But its type should always be file i.e something like this

<input id="photo" type="file" name="photo"/>

Then simply add the sendkeys command to the xpath with the location of the file we want to upload.

driver.findElement(By.xpath("//input[@id='photo']")).sendKeys("file location");