The ways to invoke different web drivers in selenium are as follows.
For Chrome Driver use the following syntax.
System.setProperty("webdriver.chrome.driver", "/Users/........./chromedriver");
WebDriver driver=new ChromeDriver();
This is the driver path- “/Users/………/chromedriver”
For gecko driver (Firefox driver) use the following one.
System.setProperty("webdriver.gecko.driver", "/Users/........./geckodriver");
WebDriver driver=new FirefoxDriver();
For the Microsoft edge driver use the following .
System.setProperty("webdriver.edge.driver", "/Users/........./msedgedriver");
WebDriver driver=new EdgeDriver();