How to Load WebDriver for Different Browsers Dynamically in Java?

You can write a Java program with Selenium Client Java API to Load WebDriver for Different Browsers Dynamically.

1. Make sure you have browser drivers installed locally for different browsers:

C:\fyicenter> dir \fyicenter\selenium

   <DIR>          chromedriver
   <DIR>          edgedriver
   <DIR>          geckodriver

2. Enter the following program, WebDriverLoader.java, that offers static method for other Java programs to load WebDriver by browser name:

C:\fyicenter> type WebDriverLoader.java

// WebDriverLoader.java
// Copyright (c) FYIcenter.com 
import org.openqa.selenium.*;
import org.openqa.selenium.chrome.*;
import org.openqa.selenium.edge.*;
public class WebDriverLoader {
   public static void main(String[] args) {
      WebDriver driver = load(args[0]);
      driver.get("http://www.google.com");
      driver.quit();
   }
   public static WebDriver load(String name) {
      WebDriver driver = null;
      if (name.equalsIgnoreCase("Chrome")) {
         System.setProperty("webdriver.chrome.driver", 
            "\\fyicenter\\selenium\\chromedriver\\chromedriver.exe");
         driver = new ChromeDriver();
      } else if (name.equalsIgnoreCase("Edge")) {
         System.setProperty("webdriver.edge.driver", 
            "\\fyicenter\\selenium\\edgedriver\\MicrosoftWebDriver.exe");
         driver = new EdgeDriver();
      } else {
         System.out.println("ERROR: Invalid browser name: "+name);
      }
      return driver;
   }
}

3. Compile and run it with the Selenium Client JAR file:

C:\fyicenter> javac -classpath \
   \fyicenter\selenium\java\client-combined-3.141.59.jar \
   WebDriverLoader.java

C:\fyicenter> java -classpath \
   .;\fyicenter\selenium\java\client-combined-3.141.59.jar;\
   \fyicenter\selenium\java\libs\guava-25.0-jre.jar;\
   \fyicenter\selenium\java\libs\okhttp-3.11.0.jar;\
   \fyicenter\selenium\java\libs\okio-1.14.0.jar;\
   \fyicenter\selenium\java\libs\commons-exec-1.3.jar \
   WebDriverLoader Chrome
   
Starting ChromeDriver 75.0.3770.8 (...-refs/branch-heads/3770@{#40}) on port 44341
Only local connections are allowed.
Please protect ports used by ChromeDriver and related test frameworks 
to prevent access by malicious code.
5:59:28 PM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Detected dialect: W3C


C:\fyicenter> java -classpath \
   .;\fyicenter\selenium\java\client-combined-3.141.59.jar;\
   \fyicenter\selenium\java\libs\guava-25.0-jre.jar;\
   \fyicenter\selenium\java\libs\okhttp-3.11.0.jar;\
   \fyicenter\selenium\java\libs\okio-1.14.0.jar;\
   \fyicenter\selenium\java\libs\commons-exec-1.3.jar \
   WebDriverLoader Chrome
[17:59:39.816] - Listening on http://localhost:28824/
5:59:42 PM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Detected dialect: OSS
[17:59:45.003] - Stopping server.   

As you can see, the WebDriverLoader.java works nicely.

 

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