Input text to text field with and without sendkeys

Input text to text field:

1. sendkeys()
2. javascript

package automation.selenium;

import org.openqa.selenium.By;
import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;

public class test1 {

 
 public static void main(String[] args) {
  WebDriver drv=new FirefoxDriver();
  drv.navigate().to("http://www.google.com/");
  
  try{
   
   // WITH SENDKEYS
   //drv.findElement(By.id("lst-ib")).sendKeys("big data");
   
   // WITHOUT SENDKEYS 
   JavascriptExecutor jse = (JavascriptExecutor)drv;
       //jse.executeScript("document.getElementById('lst-ib').value='big data';");
    //   OR
       jse.executeScript("document.getElementById('lst-ib').setAttribute('value', 'big data');");
    drv.findElement(By.id("lst-ib")).submit();
  }
  catch(Exception e){
   e.printStackTrace();
  }
  

 }

}