Several example codes

Program Overview

This program is designed to display the selected character or number option inside an active window interface.
It reads the user's selection and shows the corresponding value (either a character or a number) in the designated display area.

Python Code (GUI Example using Tkinter):

import tkinter as tk

def show_selection():
    selected = var.get()
    label_result.config(text=f"Selected: {selected}")

# Create main window
window = tk.Tk()
window.title("Option Display")

# Variable to hold selected value
var = tk.StringVar(value="A")

# Option menu with characters and numbers
options = ["A", "B", "C", "1", "2", "3"]
dropdown = tk.OptionMenu(window, var, *options)
dropdown.pack(pady=10)

# Button to confirm selection
btn_show = tk.Button(window, text="Show Selection", command=show_selection)
btn_show.pack(pady=5)

# Label to display result
label_result = tk.Label(window, text="Selected: ")
label_result.pack(pady=10)

# Run the application
window.mainloop()

Sample Output:

User selects "2" from the dropdown  
Clicks "Show Selection"  
Label displays: Selected: 2

Explanation:

- The OptionMenu widget allows the user to choose from a list of characters and numbers
- When the button is clicked, the selected value is retrieved and displayed in a label
- This setup is ideal for simple UI interfaces where user input needs to be reflected immediately