Having error with a script

Support
1

I am starting to learn appium and I am having a problem.

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

import io.appium.java_client.android.AndroidDriver;
import io.appium.java_client.android.AndroidElement;

public class New extends Basic {

public static void main(String[] args) throws MalformedURLException {
	// TODO Auto-generated method stub
	
	AndroidDriver<AndroidElement> driver=Capabilities();
driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
	// xpath Syntax : //tagName[@attribute='value']

driver.findElementByXPath("//android.widget.TextView[@index=‘4’]").click();
driver.findElementByXPath("//android.widget.TextView[[@index=‘6’]").click();

}

}

Here is Basic class

import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;

import org.openqa.selenium.remote.DesiredCapabilities;

import io.appium.java_client.android.AndroidDriver;
import io.appium.java_client.android.AndroidElement;
import io.appium.java_client.remote.MobileCapabilityType;

public class Basic {

public static AndroidDriver<AndroidElement> Capabilities() throws MalformedURLException {
	// TODO Auto-generated method stub
	File f=new File("src");
	File fs=new File(f,"ApiDemos-debug.apk");

DesiredCapabilities cap = new DesiredCapabilities();
cap.setCapability(MobileCapabilityType.DEVICE_NAME, “Android device”);
cap.setCapability(MobileCapabilityType.APP,fs.getAbsolutePath());
AndroidDriver driver = new AndroidDriver(new URL(“http://127.0.0.1:4723/wd/hub”),cap);
return driver;

}

}