Allocated RAM

package de.example;

import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.webkit.DownloadListener;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity
{
  private static Button btnClose;
  private static WebView webView;
  private static Button back;
  private static Context con;
//  DownloadTask dl;
	
	@Override
	protected void onCreate(Bundle savedInstanceState)
	{
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		con = this;
//		dl = new DownloadTask(this);
		
		btnClose = (Button) findViewById(R.id.btnClose);
		btnClose.setOnClickListener(new OnClickListener()
		{
			@Override
			public void onClick(View v)
			{
			  System.exit(0);	
			}
		});
		
		back = (Button) findViewById(R.id.btnBack);
		back.setOnClickListener(new OnClickListener()
		{
			
			@Override
			public void onClick(View v)
			{
				webView.goBack();
			}
		});
		
		
		webView = (WebView) findViewById(R.id.webView);
		webView.getSettings().setJavaScriptEnabled(true);
		webView.setWebViewClient(new WebViewClient());
		webView.getSettings().setBuiltInZoomControls(true);
		webView.getSettings().setDisplayZoomControls(false);
		webView.loadUrl("http://google.de");
	}
}