This the java class for read google sheet in selenium https://medium.com/appgambit/read-data-from-google-sheet-with-selenium-ans-google-sheets-api-c5d10595f781

GetSheetData.java

package utility;

import com.google.api.client.auth.oauth2.Credential;
import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp;
import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver;
import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow;
import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets;
import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.api.client.util.store.FileDataStoreFactory;
import com.google.api.services.sheets.v4.Sheets;
import com.google.api.services.sheets.v4.SheetsScopes;
import com.google.api.services.sheets.v4.model.ValueRange;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.security.GeneralSecurityException;
import java.util.Collections;
import java.util.List;

public class GetSheetData {
	private static final String APPLICATION_NAME = "< Application Name of Google API >";
	private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance();
	private static final String TOKENS_DIRECTORY_PATH = "tokens";

	/**
	 * Global instance of the scopes required by this quickstart. If modifying these
	 * scopes, delete your previously saved tokens/ folder.
	 */
	private static final List<String> SCOPES = Collections.singletonList(SheetsScopes.SPREADSHEETS_READONLY);
	private static final String CREDENTIALS_FILE_PATH = "< Your client_secret.json file path >";

	/**
	 * Creates an authorized Credential object.
	 * 
	 * @param HTTP_TRANSPORT The network HTTP Transport.
	 * @return An authorized Credential object.
	 * @throws IOException If the credentials.json file cannot be found.
	 */
	private static Credential getCredentials(final NetHttpTransport HTTP_TRANSPORT) throws IOException {
		// Load client secrets.
		InputStream in = GetSheetData.class.getResourceAsStream(CREDENTIALS_FILE_PATH);
		if (in == null) {
			throw new FileNotFoundException("Resource not found: " + CREDENTIALS_FILE_PATH);
		}
		GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader(in));

		// Build flow and trigger user authorization request.
		GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(HTTP_TRANSPORT, JSON_FACTORY,
				clientSecrets, SCOPES)
						.setDataStoreFactory(new FileDataStoreFactory(new java.io.File(TOKENS_DIRECTORY_PATH)))
						.setAccessType("offline").build();
		LocalServerReceiver receiver = new LocalServerReceiver.Builder().setPort(8888).build();
		return new AuthorizationCodeInstalledApp(flow, receiver).authorize("user");
	}

	/**
	 * Prints the names and majors of students in a sample spreadsheet:
	 * https://docs.google.com/spreadsheets/d/1BxiMVs0XRA5nFMdKvBdBZjgmUUqptlbs74OgvE2upms/edit
	 */
	public static List<List<Object>> getData(String range) throws IOException, GeneralSecurityException {
		// Build a new authorized API client service.
		final NetHttpTransport HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport();
		final String spreadsheetId = "< Your google sheet ID >";
		
		Sheets service = new Sheets.Builder(HTTP_TRANSPORT, JSON_FACTORY, getCredentials(HTTP_TRANSPORT))
				.setApplicationName(APPLICATION_NAME).build();
		ValueRange response = service.spreadsheets().values().get(spreadsheetId, range).execute();
		List<List<Object>> values = response.getValues();
		if (values == null || values.isEmpty()) {
			System.out.println("No data found.");
			return null;
		} else {
			return values;
		}
	}

}