显式和隐式等待不是testng特性，testng只是用作控制测试流和Assert的测试框架。
进口：

import java.time.Duration;

import org.openqa.selenium.By;
import org.openqa.selenium.Keys;
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;

代码：

WebDriver driver = new ChromeDriver();

driver.get("https://google.com/ncr");

driver.findElement(By.name("q")).sendKeys("cheese" + Keys.ENTER);

   // Initialize and wait till element(link) became clickable - timeout in 10 seconds

WebElement firstResult = new WebDriverWait(driver, Duration.ofSeconds(10))
           .until(ExpectedConditions.elementToBeClickable(By.xpath("//a/h3")));

    // Print the first result
System.out.println(firstResult.getText());