Appium NativeApp Android_Sample_Test

package pack;

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.remote.CapabilityType;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.openqa.selenium.remote.RemoteWebDriver;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;

import java.net.URL;
import java.util.concurrent.TimeUnit;

public class Desktop {

	public WebDriver driver = null;
	
	@BeforeMethod
	public void setUp() throws Exception{

		DesiredCapabilities capabilities = new DesiredCapabilities();
		capabilities.setCapability("appium-version", "1.0");
		capabilities.setCapability("platformName", "Android");
		capabilities.setCapability("platformVersion", "4.4");
		capabilities.setCapability("app", "/Users/prashanth_sams/Downloads/EriBank.apk");
		capabilities.setCapability("appPackage", "com.experitest.ExperiBank");
		capabilities.setCapability("appActivity", "com.experitest.ExperiBank.LoginActivity");
		driver = new RemoteWebDriver(new URL("http://127.0.0.1:4725/wd/hub"), capabilities);
		driver.manage().timeouts().implicitlyWait(60, TimeUnit.SECONDS);
	}
	
	@AfterMethod
	public void tearDown() throws Exception {
	driver.quit();
	}
	
	
	@Test
	public void test01() throws InterruptedException {
		driver.findElement(By.xpath("//android.widget.EditText[1]")).sendKeys("prashanth.sams");
		driver.findElement(By.xpath("//android.widget.EditText[2]")).sendKeys("password");
		driver.findElement(By.xpath("//android.widget.Button[1]")).click();
	 }
		
}