Question

[28] Finish the following code in such a way that there will be a button displayed in the GUE When the button is clicked a message box will display "Welcome" from tkinter import from tkinter import messagebox class WidgetDemo(): def _init__(self): window = Tk() window.title("Widgets Demo !") frame1 = Frame(window) frame1.pack() button1 = <space for pack> <space for main loop> def processButton(self): messagebox.
pyhton language

Answer 1

CODE

from tkinter import *
from tkinter import messagebox

#class WidgetDemo
class WidgetDemo():
        #__init__ method
        def __init__(self):
                #creating window
                window = Tk()
                
                #title for window
                window.title("Widgets Demo!")
                
                #creating frame in window
                frame1 = Frame(window)
                frame1.pack()
                
                #creating button with call to processButton()
                button1 = Button(text = "Click Here", command = self.processButton)
                button1.pack()
                
                #mainloop
                window.mainloop()
                
        #processButton()
        def processButton(self):
                #displaying "Welcome" using messagebox
                messagebox.showinfo("Demo!", "Welcome")

CODE SCREEN SHOT

1 from tkinter import * from tkinter import messagebox 2 #class Widget Demo lclass WidgetDemo() : # init method def init (self): #creating window window - Tk() #title for window window.title ("Widgets Demo!") 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 #creating frame in window framel = Frame (window) frame1.pack() #creating button with call to processButton() button1 = Button(text = "Click Here", command = self.processButton) button1.pack() #mainloop window.mainloop() #processButton() def processButton(self): #displaying "Welcome" using messagebox messagebox.showinfo ("Demo!" "Welcome") 28

CODE WITH IMPLEMENTATION

from tkinter import *
from tkinter import messagebox

#class WidgetDemo
class WidgetDemo():
        #__init__ method
        def __init__(self):
                #creating window
                window = Tk()
                
                #title for window
                window.title("Widgets Demo!")
                
                #creating frame in window
                frame1 = Frame(window)
                frame1.pack()
                
                #creating button with call to processButton()
                button1 = Button(text = "Click Here", command = self.processButton)
                button1.pack()
                
                #mainloop
                window.mainloop()
                
        #processButton()
        def processButton(self):
                #displaying "Welcome" using messagebox
                messagebox.showinfo("Demo!", "Welcome")
                
#creating object for WidgetDemo
ob = WidgetDemo()

OUTPUT

х Widgets Demo! Click Here

x Demo! - Welcome OK

CODE SCREEN SHOT

from tkinter import * from tkinter import messagebox 1 2 3 4 5 6 #class Widget Demo class WidgetDemo() : init method def init (self): #creating window window = Tk() 7 #title for window window.title("Widgets Demo!") #creating frame in window frame1 = Frame (window) frame1.pack() 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 #creating button with call to processButton() button1 = Button(text "Click Here", command = self.processButton) button1.pack() #mainloop window.mainloop() #processButton() def processButton(self): #displaying "Welcome" using messagebox messagebox.showinfo ("Demo!", "Welcome") #creating object for Widget Demo ob = Widget Demo ()