Setting listener in testng.xml

1. Following is the implementation of sample testng listener :

public class MyListener implements ITestListener
{

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub

    }

    @Override
    public void onFinish(ITestContext arg0) {
        // TODO Auto-generated method stub
       
    }

    @Override
    public void onStart(ITestContext arg0) {
        // TODO Auto-generated method stub
       
    }

    @Override
    public void onTestFailedButWithinSuccessPercentage(ITestResult arg0) {
        // TODO Auto-generated method stub
       
    }

    @Override
    public void onTestFailure(ITestResult arg0) {
        // TODO Auto-generated method stub
        arg0.getThrowable().printStackTrace();
    }

    @Override
    public void onTestSkipped(ITestResult arg0) {
        // TODO Auto-generated method stub
       
    }

    @Override
    public void onTestStart(ITestResult arg0) {
        // TODO Auto-generated method stub
       
    }

    @Override
    public void onTestSuccess(ITestResult arg0) {
        // TODO Auto-generated method stub
       
    }

}