Most used Annotations in TestNG with Selenium

TestNG Basic Annotations for configuration methods

Annotation name	Documentation
@BeforeSuite	Annotates methods that will be run before any method in a given is run.
@BeforeClass	Annotates methods that will be run before the first method on the current test class is run.
@BeforeMethod	Annotates methods that will be run before each test method.
@AfterMethod	Annotates methods that will be run after every test method.
@AfterClass	Annotates methods that will be run after the last test method on the current class is run.
@AfterSuite	Annotates methods that will be run after all the test methods in a given have been run.
@DataProvider	Marks a method as supplying data for a test method. The annotated method must return an Object[][] where each Object[] can be assigned the parameter list of the test method. The @Test method that wants to receive data from this DataProvider needs to use a dataProvider name equals to the name of this annotation.
@Test	Marks a class or a method as part of the test.

The annotations @Test annotates a method as test case in TestNG pattern.