title: JAVA - Android error: The application has stopped unexpectedly please try again
body: <p>I made an app which is just working fine. But when i click on "cancel" or "ok" button when i run the program, instead of linking me to result.java, the simulator give me "The application has stopped unexpectedly please try again" Here's the code</p>
  
  <pre><code>import android.app.Activity;
  import android.content.ComponentName;
  import android.content.Intent;
  import android.database.CursorJoiner.Result;
  import android.os.Bundle;
  import android.view.View;
  import android.widget.AutoCompleteTextView;
  
  public class lib_main extends Activity {
  
  public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);
  }
  public void onAddClick (View botton){
  
  AutoCompleteTextView title = (AutoCompleteTextView)findViewById(R.id.Title);
  AutoCompleteTextView author = (AutoCompleteTextView)findViewById(R.id.Author); 
  AutoCompleteTextView isbn = (AutoCompleteTextView)findViewById(R.id.ISBN);
  
  Intent intent = new Intent();
  intent.setClass(this,Result.class);
  
  intent.putExtra("Title", title.getText().toString());
  intent.putExtra("Author", author.getText().toString()); 
  intent.putExtra("ISBN", isbn.getText().toString());
  startActivity(intent);
  }
  
  public void onCancelClick(View botton){
  
  
  
  Intent intent = new Intent();
  intent.setComponent(new ComponentName(this,Result.class));
  
  intent.putExtra("Cancel","Cancel");
  startActivity(intent);
  }
  
  }
  </code></pre>
  
  <p>this is Result.java</p>
  
  <pre><code>import android.app.Activity; 
  import android.os.Bundle; 
  import android.widget.TextView;
  
  public class Result extends Activity {
  
  public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.result);
  
  TextView resultText=(TextView)findViewById(R.id.resultText);
  
  Bundle bundle =getIntent().getExtras();
  if(bundle.getString("Cancel")!= null)
  {resultText.setText("operation cancel");}
  else
  {  String book =bundle.getString ("Title");
     String title =bundle.getString ("Author");
     String isbn =bundle.getString ("ISBN");
     resultText.setText(
       getString (R.string.resultOk)+""+book+""+ title+""+isbn);
  
  
   }
   }
   }
  </code></pre>
  
  <p>the error log write "No command output when running:'am start-n com.Library.doc/com.Library.doc.lib_main-a android.intent.action.MAIN-c android.intent.category.LAUNCHER' in device emulator-5554"</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.Library.doc"
    android:versionCode="1"
    android:versionName="1.0"&gt;
  &lt;application android:icon="@drawable/icon" android:label="@string/app_name"&gt;
      &lt;activity android:name=".lib_main"
                android:label="@string/app_name"&gt;
          &lt;intent-filter&gt;
              &lt;action android:name="android.intent.action.MAIN" /&gt;
              &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
          &lt;/intent-filter&gt;
      &lt;/activity&gt;
    &lt;activity android:name=".Result"
                android:label="@string/result"&gt;
  
      &lt;/activity&gt;
  &lt;/application&gt;
  &lt;uses-sdk android:minSdkVersion="8" /&gt;
  </code></pre>
  
  <p> 
  Can anyone help me with this problem?</p>