@Data Provider and other Annotations of TestNG

 import org.testng.annotations.AfterMethod;  
 import org.testng.annotations.AfterTest;  
 import org.testng.annotations.BeforeMethod;  
 import org.testng.annotations.BeforeTest;  
 import org.testng.annotations.DataProvider;  
 import org.testng.annotations.Test;  
 public class NGTest1 {  
      @BeforeTest()  
      public void loadFile() {  
           System.out.println("File open....");  
      }  
      @BeforeMethod  
      public void openBrowser() {  
           System.out.println("Browser opened************");  
      }  
      @AfterMethod  
      public void closeBrowser() {  
           System.out.println("**************Close browser");  
      }  
      @DataProvider(name = "Numbers")  
      public static Object[][] getMumbers() {  
           return new Object[][] { { 1, 2,3}, { 4, 5,6 } };  
      }  
      @Test(priority = 1, dataProvider = "Numbers")  
      public void add(int number1, int number2,int number3) {  
           System.out.println(number1);  
           System.out.println(number2);  
           System.out.println(number3);  
           System.out.println("Total "+ number1+number2+number3);  
      }  
      @Test(priority = 2)  
      public void substract() {  
           System.out.println("Substraction");  
      }  
      @Test(priority = 3)  
      public void Multiply() {  
           System.out.println("Multiply");  
      }  
      @Test(priority = 4)  
      public void Divide() {  
           System.out.println("Divide");  
      }  
      @AfterTest  
      public void closeFile() {  
           System.out.println("File closed.....");  
      }  
 }