问Eclipse不显示run as java应用程序，只显示运行配置

EN

package mySeleniumProjects;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;

import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;

public class ReadExcelExample {
    static WebDriver driver = new FirefoxDriver();
    static String username;
    static String passwd;
    static String baseURL = "http://www.guru99.com";
    int rowNum;
    int colNum;

    public void main (String[] args) throws IOException{

        File excel = new File("Gave File path here");
        FileInputStream fis = new FileInputStream(excel);
        XSSFWorkbook wb = new XSSFWorkbook(fis);
        XSSFSheet ws = wb.getSheet("Sheet1");
        rowNum = ws.getLastRowNum();
        colNum = ws.getRow(0).getLastCellNum();

        System.out.println(rowNum);
        System.out.println(colNum);
    }
}