Not able to open new tab in Browser using Selenium Webdriver - selenium

Question

I am trying to open new tab in selenium using below line of code
driver.findElement(By.cssSelector("body")).sendKeys(Keys.chord(Keys.CONTROL, "t"));
But tabs is not opening up. Can anyone tell whats wrong in this command?
Also can any one explain "driver.findElement(By.cssSelector("body"))" used in this command for ? I tried searching but not proper answers
Below complete is not working. It is opening up both gmail and stack overflow in same tab in chrome not opening up new tab
package TestCode;
import java.util.concurrent.TimeUnit;
import org.openqa.selenium.By;
import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.Keys;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
public class Chrome {
public static void main(String[] args) throws InterruptedException {
// TODO Auto-generated method stub
System.setProperty("webdriver.chrome.driver","C:\\Akash\\Drivers\\chromedriver.exe");
WebDriver driver = new ChromeDriver();
driver.get("https://www.gmail.com");
String selectLinkOpeninNewTab = Keys.chord(Keys.CONTROL+"t");
driver.findElement(By.tagName("body")).sendKeys(selectLinkOpeninNewTab);
driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
driver.get("https://stackoverflow.com/");
System.out.println("Site open");
}
}

Answer 1

You can use javaScripts to open new tab in chrome.
try below line of code
JavascriptExecutor js = (JavascriptExecutor) driver;
js.executeScript("window.open('https://www.google.com','_blank');");
Refer this link :- link

Answer 2

Instead of chord use control
driver.findElement(By.cssSelector("body")).sendKeys(Keys.CONTROL +"t");
For chrome use this
first opened the tab and then hit the URL
String selectLinkOpeninNewTab = Keys.chord(Keys.CONTROL+"t");
driver.findElement(By.tagName("body")).sendKeys(selectLinkOpeninNewTab);
driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
driver.get("https://stackoverflow.com/");
System.out.println("Site open");