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Simple AutoComplete TextView in ANDROID 

public class Autocomplete extends Activity  {
 String name[]={
     "John", "Angel", "Mark", "Angelina",
     "Jhony", "Juli", "Augustine", "Robert",
     "Reena", "Ancilina", "Mary", "Juliet"
   };
 AutoCompleteTextView autotextview;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState); 
  setContentView(R.layout.activity_autocomplete);
  
  autotextview=(AutoCompleteTextView) findViewById(R.id.myautocomplete);
  autotextview.setAdapter(new ArrayAdapter<string>(this, android.R.layout.simple_dropdown_item_1line, name));
      
 }
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