title: How to solve this error in Android? java.net.MalformedURLException: Protocol not found:
body: <p>I dont know what is exactly problem, But I am getting error like:
  Even I also checking all paths, and it is correct but still it will get error.</p>
  
  <p>java.net.MalformedURLException: Protocol not found: www.w3schools.com/webservices/tempconvert.asmx</p>
  
  <p>My Code:</p>
  
  <pre><code>package com.example.mytest;
  
  import org.ksoap2.SoapEnvelope;
  import org.ksoap2.serialization.SoapObject;
  import org.ksoap2.serialization.SoapPrimitive;
  import org.ksoap2.serialization.SoapSerializationEnvelope;
  import org.ksoap2.transport.AndroidHttpTransport;
  
  import android.app.Activity;
  import android.os.Bundle;
  import android.util.Log;
  import android.view.Menu;
  import android.widget.TextView;
  
  @SuppressWarnings("deprecation")
  public class MainActivity extends Activity {
  
      private final String SOAP_ACTION = "http://tempuri.org/CelsiusToFahrenheit";
      private final String METHOD_NAME = "CelsiusToFahrenheit";
      public final String NAMESPACE = "http://tempuri.org";
      public String URL = "www.w3schools.com/webservices/tempconvert.asmx";
  
      TextView tv;
  
      public static String TAG = "MyTest";
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
  
          Log.d(TAG, "MainActivity Started");
          tv = (TextView) findViewById(R.id.txt1);
  
          SoapObject Request = new SoapObject(NAMESPACE, METHOD_NAME);
          Request.addProperty("Celsius", "32");
  
          // URL=URL.replaceAll(" ", "%20");
  
          SoapSerializationEnvelope soapEnvelope = new SoapSerializationEnvelope(
                  SoapEnvelope.VER11);
          soapEnvelope.dotNet = true;
          soapEnvelope.setOutputSoapObject(Request);
  
          Log.d(TAG, "URL:"+URL);
  
          AndroidHttpTransport aht = new AndroidHttpTransport(URL);
  
          try {
              // HttpTransportSE aht = new HttpTransportSE(URL);
  
              Log.d(TAG, "aht:" + aht);
  
              aht.call(SOAP_ACTION, soapEnvelope);
              SoapPrimitive resultString = (SoapPrimitive) soapEnvelope
                      .getResponse();
  
              // Object resultString = (Object)soapEnvelope.getResponse();
  
              Log.d(TAG, "result String=" + resultString);
  
              tv.setText("Status: " + resultString);
          } catch (Exception e) {
              Log.d(TAG, "Error: ", e);
          }
  
      }
  
      @Override
      public boolean onCreateOptionsMenu(Menu menu) {
          // Inflate the menu; this adds items to the action bar if it is present.
          getMenuInflater().inflate(R.menu.main, menu);
          return true;
      }
  
  }
  </code></pre>
  
  <p>I dont know what is exact problem but I am getting error like:</p>
  
  <pre><code>02-01 21:07:01.264: D/MyTest(1068): MainActivity Started
  02-01 21:07:01.534: D/MyTest(1068): Error: 
  02-01 21:07:01.534: D/MyTest(1068): java.net.MalformedURLException: Protocol not found: www.w3schools.com/webservices/tempconvert.asmx
  02-01 21:07:01.534: D/MyTest(1068):     at java.net.URL.&lt;init&gt;(URL.java:275)
  02-01 21:07:01.534: D/MyTest(1068):     at java.net.URL.&lt;init&gt;(URL.java:159)
  02-01 21:07:01.534: D/MyTest(1068):     at org.ksoap2.transport.ServiceConnectionSE.&lt;init&gt;(ServiceConnectionSE.java:65)
  02-01 21:07:01.534: D/MyTest(1068):     at org.ksoap2.transport.ServiceConnectionSE.&lt;init&gt;(ServiceConnectionSE.java:61)
  02-01 21:07:01.534: D/MyTest(1068):     at org.ksoap2.transport.AndroidServiceConnection.&lt;init&gt;(AndroidServiceConnection.java:27)
  02-01 21:07:01.534: D/MyTest(1068):     at org.ksoap2.transport.AndroidHttpTransport.getServiceConnection(AndroidHttpTransport.java:35)
  02-01 21:07:01.534: D/MyTest(1068):     at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:124)
  02-01 21:07:01.534: D/MyTest(1068):     at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:95)
  </code></pre>