ChromeDriver and WebDriver for Selenium through TestNG results in 4 errors

Solution 1:

There are exactly 4 errors as follows:

• Error: ChromeDriver cannot be resolved to a type

  • Solution: You need to add the following import

    import org.openqa.selenium.chrome.ChromeDriver; 
    

  • Here you can find a discussion on chrome Webdriver can't be resolved to a type error eclipse and java

• Error: Test cannot be resolved to a type

  • Solution: You need to add the following import

    import org.testng.annotations.Test;
    //or
    import org.junit.Test;
    

• Error: The public type ChromeTest must be defined in its own file

  • Solution: Your filename is Chrom.java but your classname is ChromeTest where as both should have been similar. Change them as identical.

  • Here you can find a discussion on “The public type must be defined in its own file” but the file name and the class name is the same

• Error: WebDriver cannot be resolved to a type

  • Solution: You need to add the following import

    import org.openqa.selenium.WebDriver;
    

Best Practice

• You have to keep the filename (currently Chrom.java) and your classname (currently ChromeTest) identical as a mandatory measure.
• You need to mention the related imports whenever you are using any class. You can Mouse Hover over the error and choose the relevant import.
• You should either add the testng jars or the junit jars but not both of them.

Solution 2:

From your code, i didn't see any imports and class name was different from filename(As @yong mentioned in his comment).

Your Java file name should always reflect the public class defined within that file. Otherwise, you will get a compiler error.

Modify your code like this : (you had a typo, firstPackage)

package firstPackage;

import org.junit.Test;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;

public class ChromeTest {

    @Test
    public void LaunchChrome_method(){
        System.setProperty("webdriver.chrome.driver","D:\\Drivers\\chromedriver.exe"); 
        WebDriver driver= new ChromeDriver();
        driver.get("http://www.google.com");
    }

}