How to set EditText for always Capital letter (upper case) input in your Android App?

This video shows the steps to have the inputs in edit text displayed always in capital letter (upper case) in your Android App.

Irrespective of the case of the letters entered (lower or upper case), the input letters will always appear in capital letter in the EditText widget in your Android App.

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Complete source code and other details:

package com.programmerworld.edittextcapitaluppercase;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.text.InputFilter;
import android.widget.EditText;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        EditText editText = findViewById(R.id.editText);
        editText.setFilters(new InputFilter[]{new InputFilter.AllCaps()});
    }
}

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <EditText
        android:id="@+id/editText"
        android:layout_width="275dp"
        android:layout_height="107dp"
        android:layout_marginStart="63dp"
        android:layout_marginTop="70dp"
        android:ems="10"
        android:hint="Only capital letters ..."
        android:inputType="textPersonName"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>