@BeforeTest @BeforeClass @BeforeMethod @Test Annotations in TestNG

package testSuite;

import org.testng.annotations.BeforeClass;

import org.testng.annotations.BeforeMethod;

import org.testng.annotations.BeforeTest;

import org.testng.annotations.Test;

public class letsdothis {

       @BeforeClass

       public void beforeclass()

       {

              System.out.println("I am in before class");

       }

       @Test

       public void test()

       {

              System.out.println("I am in first Test function");

       }

       @Test

       public void testing(){

              System.out.println("I am in second Test function");

       }

       @BeforeMethod

       public void beforemethod()

       {

              System.out.println("Before method");

       }

       @BeforeTest

       public void beforetest(){

              System.out.println("Before Test");

       }

}

Output

Before Test

I am in before class

Before method

I am in first Test function

Before method

I am in second Test function

PASSED: test

PASSED: testing

Note: All this annotations are used when we want to test a function 
i.e All the functions having @Test because TestNG framework has been designed for testing.

So here Before Test will be always called first because TestNG wants to be sure  before going to @Test.

So BeforeTest will always be executed on priority

Then BeforeClass ----> @BeforeClass: The annotated method will be run before the first test method in the current class is invoked. 

Then BeforeMethod note this will be executed for every Test function---->@BeforeTest: The annotated method will be run before any test method belonging to the classes inside the <test> tag is run.

Just after @BeforeMethod, @Test will be called

SO from here we conclude @BeforeMethod will be called everytime before @Test 

Explanation: @BeforeTest: The annotated method will be run before any test method belonging to the classes inside the <test> tag is run.