Develop an android application to select and display date and time on click of 'select date', 'select time' buttons

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
    android:padding="20dp">

    <EditText android:id="@+id/etDate"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
        android:layout_marginTop="100dp"/>

    <Button android:id="@+id/btnDate"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Select Date"
        android:layout_toRightOf="@+id/etDate"
        android:layout_marginTop="100dp"
        android:onClick="showDatePicker"/>

    <EditText android:id="@+id/etTime"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
        android:layout_below="@+id/etDate"/>

    <Button android:id="@+id/btnTime"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Select Time"
        android:layout_toRightOf="@+id/etTime"
        android:layout_below="@+id/btnDate"
        android:onClick="showTimePicker"/>

</RelativeLayout>

MainActivity.java

package com.example.datetimepickerdialog;
import android.app.DatePickerDialog;
import android.app.TimePickerDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.TimePicker;
import java.util.Calendar;

public class MainActivity extends AppCompatActivity {

    EditText etDate, etTime;
    Button btnDate, btnTime;

    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        etDate = findViewById(R.id.etDate);
        etTime = findViewById(R.id.etTime);
        btnDate = findViewById(R.id.btnDate);
        btnTime = findViewById(R.id.btnTime);
    }

    public void showDatePicker(View view) {

        // Get Current Time
        final Calendar c = Calendar.getInstance();
        final int mYear = c.get(Calendar.YEAR);
        final int mMonth = c.get(Calendar.MONTH);
        final int mDay = c.get(Calendar.DAY_OF_MONTH);

        DatePickerDialog datePickerDialog = new DatePickerDialog(this,
                new DatePickerDialog.OnDateSetListener() {
                    @Override
                    public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
                        etDate.setText(mDay + "-" + (mMonth + 1) + "-" + mYear);
                    }
                }, mYear, mMonth, mDay);
        datePickerDialog.show();
    }

    public void showTimePicker(View view) {

        // Get Current Time
        final Calendar c = Calendar.getInstance();
        int mHour = c.get(Calendar.HOUR_OF_DAY);
        int mMinute = c.get(Calendar.MINUTE);

        TimePickerDialog timePickerDialog = new TimePickerDialog(this,
                new TimePickerDialog.OnTimeSetListener() {
                  
                @Override
                public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
                    etTime.setText(hourOfDay + " : " + minute);
                }
            }, mHour,mMinute, false);
        timePickerDialog.show();
    }
} 

OUTPUT