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POAndroid Log - causing application crash
 

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    <p>Well I am working on an android application, to upload photos on FTP server. The application was working fine, I tried to modify the code and get the user data in log file using <strong>Log.v</strong>. </p> <p>Now here my problems starts, each and every time I tries to run my application it crashes. </p> <pre><code>public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); SQLiteDatabase db = openOrCreateDatabase("userData",MODE_PRIVATE,null); db.execSQL("CREATE TABLE IF NOT EXISTS UserInfo(firstname VARCHAR,lastname VARCHAR);"); db.execSQL("INSERT INTO UserInfo VALUES('pulkit','gupta');"); Cursor c = db.rawQuery("SELECT * FROM UserInfo",null); //Log.d("result",c.getString(c.getColumnIndex("firstname"))); db.close(); } </code></pre> <p><strong>attaching my log image ..</strong></p> <pre><code>12-09 07:23:19.825: E/Trace(1942): error opening trace file: No such file or directory (2) 12-09 07:23:21.165: D/AndroidRuntime(1942): Shutting down VM 12-09 07:23:21.165: W/dalvikvm(1942): threadid=1: thread exiting with uncaught exception (group=0x40a71930) 12-09 07:23:21.196: E/AndroidRuntime(1942): FATAL EXCEPTION: main 12-09 07:23:21.196: E/AndroidRuntime(1942): java.lang.RuntimeException: Unable to start activity ComponentInfo{abc.photoapp/abc.photoapp.MainActivity}: android.database.CursorIndexOutOfBoundsException: Index -1 requested, with a size of 12 12-09 07:23:21.196: E/AndroidRuntime(1942): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180) 12-09 07:23:21.196: E/AndroidRuntime(1942): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230) 12-09 07:23:21.196: E/AndroidRuntime(1942): at android.app.ActivityThread.access$600(ActivityThread.java:141) 12-09 07:23:21.196: E/AndroidRuntime(1942): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234) 12-09 07:23:21.196: E/AndroidRuntime(1942): at android.os.Handler.dispatchMessage(Handler.java:99) 12-09 07:23:21.196: E/AndroidRuntime(1942): at android.os.Looper.loop(Looper.java:137) 12-09 07:23:21.196: E/AndroidRuntime(1942): at android.app.ActivityThread.main(ActivityThread.java:5041) 12-09 07:23:21.196: E/AndroidRuntime(1942): at java.lang.reflect.Method.invokeNative(Native Method) 12-09 07:23:21.196: E/AndroidRuntime(1942): at java.lang.reflect.Method.invoke(Method.java:511) 12-09 07:23:21.196: E/AndroidRuntime(1942): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 12-09 07:23:21.196: E/AndroidRuntime(1942): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 12-09 07:23:21.196: E/AndroidRuntime(1942): at dalvik.system.NativeStart.main(Native Method) 12-09 07:23:21.196: E/AndroidRuntime(1942): Caused by: android.database.CursorIndexOutOfBoundsException: Index -1 requested, with a size of 12 12-09 07:23:21.196: E/AndroidRuntime(1942): at android.database.AbstractCursor.checkPosition(AbstractCursor.java:424) 12-09 07:23:21.196: E/AndroidRuntime(1942): at android.database.AbstractWindowedCursor.checkPosition(AbstractWindowedCursor.java:136) 12-09 07:23:21.196: E/AndroidRuntime(1942): at android.database.AbstractWindowedCursor.getString(AbstractWindowedCursor.java:50) 12-09 07:23:21.196: E/AndroidRuntime(1942): at abc.photoapp.MainActivity.onCreate(MainActivity.java:29) 12-09 07:23:21.196: E/AndroidRuntime(1942): at android.app.Activity.performCreate(Activity.java:5104) 12-09 07:23:21.196: E/AndroidRuntime(1942): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080) 12-09 07:23:21.196: E/AndroidRuntime(1942): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144) 12-09 07:23:21.196: E/AndroidRuntime(1942): ... 11 more </code></pre> <p><strong>My AVD Configurations</strong></p> <p><strong>Device: 4.0" WVGA (480x800 hdpi) Target: Android 4.2.2 – API Level 17 CPU/ABI: ARM (armabi-v7a) RAM 512</strong></p> <p><strong>can any one help me out the solution of my problem</strong> </p>
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