import tkinter as tk
from random import randint

def tk_02():
    """Write a program that can be used instead of rolling a six-sided die in a
       board game. When the user clicks a button it should display a random
       whole number between 1 to 6 (inclusive)."""
    def click():
        num = randint(1,6)
        txt_out_box["fg"] = "black"
        txt_out_box["bg"] = "magenta"
        txt_out_box["text"] = f"{num}"

    window = tk.Tk()
    window.title("Dado TK")
    window.geometry("380x450")

    lbl_info = tk.Label(text="Dado", font="Verdana 50")
    lbl_info.place(x=40, y=25, width=300, height=75)

    txt_out_box = tk.Message(text="", font="Verdana 120")
    txt_out_box["fg"] = "red"
    txt_out_box["bg"] = "cyan"
    txt_out_box["justify"] = "center"
    txt_out_box["width"] = 250
    txt_out_box.place(x=40, y=120, width=300, height=300)

    btn_launch = tk.Button(text="LANZAR DADO", command=click)
    btn_launch.place(x=40, y=100, width=300, height=35)
    btn_launch.focus()
    window.mainloop()