Hướng dẫn xpath vs css selector

import org.openqa.selenium.By;

import org.openqa.selenium.WebDriver;

import org.openqa.selenium.WebElement;

import org.openqa.selenium.chrome.ChromeDriver;

import org.openqa.selenium.support.ui.ExpectedConditions;

import org.openqa.selenium.support.ui.WebDriverWait;

publicclassSeleniumEx{

    staticWebDriverWait wait;

    static WebDriver webDriver;

    publicstaticvoidmain(String[]args)throwsInterruptedException{

        //Define the path of ChromeDriver

        StringchromDriverPath="src/main/resources/SeleniumWebDriver/chromedriver.exe";

        //Set the property of WebDriver

        System.setProperty("webdriver.chrome.driver", chromDriverPath);

        //Create a Chrome Driver

        webDriver=newChromeDriver();

        //Define the wait object with 5 sec time out

        wait=newWebDriverWait(webDriver,5);

        //Set delay time to see how Selenium work on Web browser

        int delay=100;

        //The URL of Ginger spelling checker

        StringgingerUrl="https://www.gingersoftware.com/spellcheck";

        //Use Chrome to access the url

        webDriver.get(gingerUrl);

        //An example of a paragraph containing misspelling words

        StringmispellText="Many handicraft village in Hanoi still struggling to building a brand for "+

                "themselves in the market economic."+

                "Van Phuc Village has finding a way to preserved the craft traditional of silk." +

                "the village are well-know to the finestest silk in Vietnam."+

                "villagers are prouded of their products, which have establihed a name for "+

                "themselves in domesti and wod markets.";

        //Split into sentence to examine Ginger many times

        String[]mispellSentence=mispellText.split("\\.");

        // Get the cover of the text area

        WebElement originalTextOriginal=getElement("//*[@id=\"GingerWidget-originalHtmlText\"]");

        originalTextOriginal.click();

        //Get the submit text area

        WebElement textArea=getElement("//*[@id=\"GingerWidget-originalTexInput\"]");

        //Get the 'Go' button

        WebElement submit=getElement("//*[@id=\"GingerWidget-submitButton\"]");

        //Get the correct text element

        WebElement correctTextElement;

        //Check the spelling of each sentence

        for(StringoriginalText:mispellSentence){

            //Clean the previous text

            textArea.clear();

            Thread.sleep(delay);

            //Submit the text

            textArea.sendKeys(originalText);

            Thread.sleep(delay);

            //Click 'Go' button

            submit.click();

            Thread.sleep(delay);

            //Get the corrected text

            correctTextElement=getElement("//*[@id=\"GingerWidget-correctedText\"]");

            Thread.sleep(5000);

            //Display the result

            StringcorrectText =correctTextElement.getText();

            System.out.println("The original text: "+originalText);

            System.out.println("Using Ginger App: "+correctText);

            System.out.println();

            //Click to check another sentence

            originalTextOriginal.click();

        }

    }

    /**

     * Get a particular element using its XPath

     * @param xPath The XPath of the element

     * @return The web element

     */

    private staticWebElement getElement(StringxPath){

        //Wait until the element is visible

        wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath(xPath)));

        returnwebDriver.findElement(By.xpath(xPath));

    }

}