i want to share the global data across activities and i have followed
.but i am not getting how to declare it in my manifest. i am posting my manifest code, i have tried it in different ways, but still getting the error. please tell me how to resolve it.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.example.helloandroid"
  android:versionCode="1"
  android:versionName="1.0">
<uses-sdk android:minSdkVersion="7" />
<application android:icon="@drawable/icon" android:label="@string/app_name"
     android:name=".Myapp">
    <activity android:name=".AndroidtestActivity"
              android:label="@string/app_name">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>
This is my main activity
public class AndroidtestActivity extends Activity
    {
    /** Called when the activity is first created. */
  public static final String PREFS_NAME = "MyPrefsFile";
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    EditText et = (EditText) findViewById(R.id.text1);
    Myapp appState = ((Myapp)getApplicationContext());
   String s= appState.getState();
    et.setText(s);
}
}
and my Myapp class is
class Myapp extends Application {
  private String myState;
  public String getState(){
    return myState;
  }
  public void setState(String s){
    myState = "hello world";
  }
}
i am getting error in the line Myapp appState = ((Myapp)getApplicationContext());
illegal access exception ,please tell me how to resolve this problem
please help me with this.
 
     
    