CALENDAR

MainActivity.java package com.bpdev.cat; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import com.google.android.material.snackbar.Snackbar; import java.util.Calendar; public class MainActivity extends AppCompatActivity { EditText editYear; Button b..