TextToSpeech show Null Pointer Exception?
android, nullpointerexception, text-to-speech
Solution
write
tts = new TextToSpeech(this, this);
in your if loop in onCreate () method.
Problem
I am creating one application on TextToSpeech. But when i am trying to run,it throw exception on following line. ``` tts.speak(ruleOne, TextToSpeech.QUEUE_ADD, null); ``` Here is my full code for reference Please give me any hint. I don't understand what wrong in my code. when i compile my code all value pass correctly but when it jump on above tts object it hit null pointer exception. is any syntax is wrong? which method call first onCreate() or onActivityResult? Thanks in Advance Here is Logcat content. ``` 04-10 13:58:34.082: WARN/System.err(19352): java.lang.NullPointerException 04-10 13:58:34.082: WARN/System.err(19352): at com.example.examguide.ExamRulesActivity.onCreate(ExamRulesActivity.java:60) 04-10 13:58:34.082: WARN/System.err(19352): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 04-10 13:58:34.092: WARN/System.err(19352): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611) 04-10 13:58:34.092: WARN/System.err(19352): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663) 04-10 13:58:34.092: WARN/System.err(19352): at android.app.ActivityThread.access$1500(ActivityThread.java:117) 04-10 13:58:34.092: WARN/System.err(19352): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931) 04-10 13:58:34.092: WARN/System.err(19352): at android.os.Handler.dispatchMessage(Handler.java:99) 04-10 13:58:34.092: WARN/System.err(19352): at android.os.Looper.loop(Looper.java:123) 04-10 13:58:34.092: WARN/System.err(19352): at android.app.ActivityThread.main(ActivityThread.java:3683) 04-10 13:58:34.102: WARN/System.err(19352): at java.lang.reflect.Method.invokeNative(Native Method) 04-10 13:58:34.102: WARN/System.err(19352): at java.lang.reflect.Method.invoke(Method.java:507) 04-10 13:58:34.102: WARN/System.err(19352): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 04-10 13:58:34.102: WARN/System.err(19352): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 04-10 13:58:34.102: WARN/System.err(19352): at dalvik.system.NativeStart.main(Native Method) ```