Start by creating new Android Application Project, insert your app name, project nama, and package name
Choose image as ICON for the app
Choose blank activity
Let it in default value
Delete all XML code
Insert XML components :LinearLayout, TextView, EditText, and Button
Delete onCreateOptionsMenu
Create EditText, Button, dan TextToSpeech new variables
Connect previous variables to XML IDs
Add setOnClickListener in each Button
[ IMPORTANT ] create new TextToSpeech
Add implements TextToSpeech.OnInitListener and OnClickListener
Complete your code in onClick and onInit
isEmpty() needs API version 9 so you have to change the value of minSdkVersion in AndroidManifest.xml to 9
Run your application on emulator or Android smartphone
Insert some words or sentences
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