Creating TestNG in java program

 package sample;  
 import org.testng.annotations.Test;  
 public class Sample {  
      @Test  
      public void sample1() {  
           System.out.println("************Sample***sample1***************");  
           System.out.println("***********Sample****sample1***************");  
      }  
      @Test  
      public void sample2() {  
           System.out.println("***********Sample****sample2***************");  
           System.out.println("***********Sample****sample2***************");  
      }  
 }  

 package sample;  
 import org.testng.annotations.Test;  
 public class Sample2 {  
      @Test  
      public void sample1() {  
           System.out.println("************Sample2***sample1***************");  
           System.out.println("***********Sample2****sample1***************");  
      }  
      @Test  
      public void sample2() {  
           System.out.println("************Sample2***sample2***************");  
           System.out.println("************Sample2***sample2***************");  
      }  
 }  

 package sample;  
 import org.testng.ITestContext;  
 import org.testng.ITestListener;  
 import org.testng.ITestResult;  
 public class MyListener implements ITestListener {  
      public void onFinish(ITestContext arg0) {  
           System.out.println("finnished");  
      }  
      public void onStart(ITestContext arg0) {  
           System.out.println("Just started");  
      }  
      public void onTestFailedButWithinSuccessPercentage(ITestResult arg0) {  
      }  
      public void onTestFailure(ITestResult arg0) {  
      }  
      public void onTestSkipped(ITestResult arg0) {  
      }  
      public void onTestStart(ITestResult arg0) {  
           System.out.println("Test started");  
      }  
      public void onTestSuccess(ITestResult arg0) {  
           System.out.println("Test suceess");  
      }  
 }  

 package sample;  
 import java.util.ArrayList;  
 import java.util.List;  
 import org.testng.TestNG;  
 import org.testng.xml.XmlClass;  
 import org.testng.xml.XmlSuite;  
 import org.testng.xml.XmlTest;  
 public class TestngExample {  
      public static void main(String[] args) {  
           XmlSuite suite = new XmlSuite();  
           suite.setName("MySuite");  
           suite.setParallel("false");  
           suite.setVerbose(1);  
           suite.addListener("sample.MyListener"); // add listener class  
           XmlTest test1 = new XmlTest(suite);  
           test1.setName("Test1");  
           test1.setPreserveOrder("true");  
           XmlTest test2 = new XmlTest(suite);  
           test2.setName("Test2");  
           test2.setPreserveOrder("true");  
           XmlClass class1 = new XmlClass(Sample.class);  
           XmlClass class2 = new XmlClass(Sample2.class);  
           // Arraylist to add classes  
           List<XmlClass> classes = new ArrayList<XmlClass>();  
           classes.add(class1);  
           classes.add(class2);  
           test1.setClasses(classes);  
           test2.setClasses(classes);  
           TestNG testng = new TestNG();  
           // arraylist to add uites  
           List<XmlSuite> suites = new ArrayList<XmlSuite>();  
           suites.add(suite);  
           testng.setXmlSuites(suites);  
           testng.run();  
      }  
 }