How to convert EditText text to all uppercase in Android

activity_main.xml 
 <RelativeLayout     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/rl"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:padding="10dp"     tools:context=".MainActivity"     android:background="#d8ddf7"     >     <!--         android:inputType="textCapCharacters"             Can be combined with text and its variations to request             capitalization of all characters. Corresponds to             TYPE_TEXT_FLAG_CAP_CHARACTERS.     -->     <EditText         android:id="@+id/et"         android:layout_width="250dp"         android:layout_height="wrap_content"         android:hint="Input your country"         android:padding="10dp"         android:inputType="textCapCharacters"         />     <EditText         android:id="@+id/et_city"         android:layout_width="250dp"         android:layout_height="wrap_content"         android:hint="Input your City"         android:padding="10dp"         android:layout_below="@+id/et"         /> </RelativeLayout>
MainActivity.java 
 package com.cfsuman.me.androidcodesnippets;  import android.os.Bundle; import android.app.Activity; import android.text.InputFilter; import android.widget.EditText;   public class MainActivity extends Activity {      @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);          // Get the widgets reference from XML layout         EditText et = (EditText) findViewById(R.id.et);         EditText et_city = (EditText) findViewById(R.id.et_city);          /*             setFilters(InputFilter[] filters)                 Sets the list of input filters that will                 be used if the buffer is Editable.              InputFilter.AllCaps                 This filter will capitalize all the lower                 case letters that are added through edits.          */         et_city.setFilters(new InputFilter[]{new InputFilter.AllCaps()});  } }
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