Find links on Chrome browser using Selenium webdirver

System.setProperty("webdriver.chrome.driver",(System.getProperty("user.dir")+ "\\chromedriver\\chromedriver.exe"));
WebDriver driver = new ChromeDriver();
driver.get("http://facebook.com");
//List<WebElement> allradios=driver.findElements(By.xpath("//input[@name='sex']"));
List<WebElement> alllinks=driver.findElements(By.tagName("a"));
System.out.println("Total links--"+alllinks.size());
for(int i=0;i<=alllinks.size();i++){
System.out.println(alllinks.get(i));
}