how to make a button in tkinter code example

Example 1: Function to a button in tkinter

from tkinter import *
#Creating a win
win = Tk()
#Giving a Function To The Button
def btn1():
  print("I Don't Know Your Name")
#Creating The Button
button1 =  Button(win, text="Click Me To Print SomeThing", command=btn1)
#put on screen
button1.pack()
win.mainloop()
#NB:This programme Will Print Something In The Terminal
#Check My Profile To See How We Print On The Screen Or Type In Google "Tkinter Label"

Example 2: Update label text after pressing a button in Tkinter

#tested and working on PYTHON 3.8 AND ADDED TO PATH
import tkinter as tk
win = tk.Tk()

def changetext():
	a.config(text="changed text!")
    
a = tk.Label(win, text="hello world")
a.pack()
tk.Button(win, text="Change Label Text", command=changetext).pack()

win.mainloop()

Example 3: python button tkinter

from tkinter import *

wow = Tk()

def ree(hi):
  print(hi)
  
w = Button ( master=wow, command=ree('hi'), text="hi" )

Output:
  Tkinter:
    ______
   [  hi  ] <--- Button
    ------
  
  Shell:
    hi <--- on button pressed

Example 4: add a button on tkinter

import tkinter
button1 = ttk.Button(self, text="anything", command=random command)
        button1.pack()

Example 5: button tkinter

import Tkinter
import tkMessageBox

top = Tkinter.Tk()

def helloCallBack():
   tkMessageBox.showinfo( "Hello Python", "Hello World")

B = Tkinter.Button(top, text ="Hello", command = helloCallBack)

B.pack()
top.mainloop()

Example 6: how to make a button disapear on click in javafx

public void letterChosen(ActionEvent event) {
    Button source = (Button) event.getSource();
    source.setVisible(false);
    System.out.println("pick: "+source.getUserData());
}