Maximize browser window using webdriver

Maximize browser window using webdriver

There are times when we want to to maximize the browser window during the execution of our script .For this purpose webdriver providers a built-in method and here is the syntax :

WebDriver driver;
driver.manage().window().maximize();

Here is the sample code using TestNG framework. :

import java.awt.Toolkit;
import java.io.IOException;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.testng.Reporter;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;

public class MaximizeWindow {

WebDriver driver;

@BeforeTest
public void setUpDriver() {
driver = new FirefoxDriver();
      }
  

@Test
public void maximize() {
 //declare varibales for windows
org.openqa.selenium.Dimension defaultDim;
org.openqa.selenium.Dimension maximizeDim;
//Load google website on browser
driver.get("http://google.com");
//Display the current screen dimensions
defaultDim=driver.manage().window().getSize();
System.out.println("screenHeight before maximizing"+defaultDim.getHeight());
System.out.println("screenWidth before maximizing"+defaultDim.getWidth());
//maximize the window using webdriver method
driver.manage().window().maximize();
//Display the maximized window dimensions
maximizeDim=driver.manage().window().getSize();
System.out.println("screenHeight after maximizing:"+maximizeDim.getHeight());
System.out.println("screenWidth after maximizing:"+maximizeDim.getWidth());

      }


  }