CC103 - Part 3

What does the following code do? import tkinter as tk root = tk.Tk() label = tk.Label(root, text="Hello, World!") label.pack() root.mainloop()

• Displays a label with text inside a window

• Opens a text file

• Creates a button

• Closes a window

What is the purpose of mainloop() in Tkinter? root.mainloop()

• Exits the application

• Creates a widget

• Starts the GUI event loop

• Destroys the root window

What does the pack() method do? button.pack()

• Destroys a widget

• Adds a widget to the grid

• Arranges a widget in the window

• Changes a widget’s text

How do you create a button that closes the window when clicked? import tkinter as tk root = tk.Tk() button = tk.Button(root, text="Exit", command=root.destroy) button.pack() root.mainloop()

• Closes the system

• Creates an exit dialog

• Closes the window

• Minimizes the window

Which geometry manager allows specifying row and column?

• pack()

• grid()

• place()

• align()

Which of the following correctly adds an entry widget? entry = tk.Entry(root) entry.pack()

• Adds a dropdown

• Adds a label

• Adds a text box for input

• Adds a button

How can you get the content of an Entry widget? entry.get()

• entry.value()

• entry.text()

• entry.content()

• entry.get()

What will this code do? label = tk.Label(root, text="Click Me") label.config(fg="blue") label.pack()

• Display a red label

• Make text bold

• Change text color to blue

• Set font size

What happens if you call pack() and grid() on the same widget?

• Works fine

• Raises a warning

• Raises a TclError

• Automatically chooses one

What does this snippet do? tk.Label(root, text="Name").grid(row=0, column=0) tk.Entry(root).grid(row=0, column=1)

• Adds a dropdown

• Adds a label only

• Adds a label and input field side by side

• Adds a label below input field