Selenium WebDriver : Example to set and invoke different browsers through WebDriver

/*
 * Example to set and invoke different browser in Selenium WebDriver 
 * Programming Language : JAVA
 */
import java.util.Scanner;

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.ie.InternetExplorerDriver;

public class SettingDifferentBrowserinSelenium {

 static WebDriver wd = null;
 
 public static void main(String[] args) {
  
  Scanner sc = new Scanner(System.in);
  System.out.println("Enter browser which you want to invoke : ");
  String browserName = sc.next();
  openBrowser(browserName);
  
 }
 
 
 public static void openBrowser(String browserName){
  
  if(browserName.equalsIgnoreCase("Mozilla")){
   wd = new FirefoxDriver();
   System.out.println("Browser invoked : " +browserName);
   
  }else if(browserName.equalsIgnoreCase("Chrome")){
   
   //for chrome browser you have to set the path 
   System.setProperty("webdriver.chrome.driver", "/path_to_chormedriver/chromedriver.exe"); //  D:/setup/chromedriver.exe
   wd = new ChromeDriver();
   System.out.println("Browser invoked : " +browserName);
   
  }else if(browserName.equalsIgnoreCase("Chrome")){
  
   //for ie browser you have to set the path , use the IEDriverServer.exe based on your OS architecture x64bit or x86bit
   System.setProperty("webdriver.ie.driver", "/path_to_iedriver/IEDriverServer.exe"); //  D:/setup/IEDriverServer.exe
   wd = new InternetExplorerDriver();
   System.out.println("Browser invoked : " +browserName);
  
  }else{
   
   System.out.println("You can either invoke the default browser or display"
        + " a message to provide valid broswer name ");
  }
  
 }

}