Improved the calculator by using tkinter

Author: tanujbordikar

hexCalculator/README.md

@@ -2,15 +2,11 @@
 
 The aim of a decimal to hexadecimal (hex) calculator is to provide a tool that allows users to convert decimal numbers into their equivalent hexadecimal representation.
 
-Decimal to hexadecimal calculator takes a decimal number as input and converts it into a hexadecimal number.
-The following steps are involved in the conversion process:
-- User input
-- Validation
-- Conversion algorithm
-- Hexadecimal Output
+The code above creates a simple hex calculator using the Python tkinter library. The calculator allows users to add, subtract, multiply, and divide two hexadecimal numbers. The input fields are two text boxes where users can enter the hexadecimal numbers. The buttons at the bottom of the window perform the four operations. The output label displays the result of the operation.
 
 ## Language
-- [x] Python
+- Python
+    - Tkinter
 
 ## Setup instructions
 Run the below command to show output
@@ -20,12 +16,11 @@ python hexCalculator.py
 
 ## Output
 ```
-Enter decimal value: 10
-Decimal Value: 10
-Hexadecimal Value: A
+Here is the output of the code when the user enters 0x12 in the first text box, 0x34 in the second text box, and then clicks the Add button:
+Result: 0x46
 ```
 ```
-Enter decimal value: 50
-Decimal Value: 50
-Hexadecimal Value: 32
+If the user enters 0x12 in the first text box and 0x34 in the second text box, and then clicks the Add button.
+output: 0x46. 
+This is the hexadecimal representation of the decimal number 56.
 ```

hexCalculator/hexCalculator.py

@@ -1,21 +1,64 @@
-conversion_table = {0: '0', 1: '1', 2: '2', 3: '3', 4: '4',
-                    5: '5', 6: '6', 7: '7',
-                    8: '8', 9: '9', 10: 'A', 11: 'B', 12: 'C',
-                    13: 'D', 14: 'E', 15: 'F'}
+import tkinter as tk
 
+def hex_add():
+    try:
+        num1 = int(entry1.get(), 16)
+        num2 = int(entry2.get(), 16)
+        result = hex(num1 + num2)
+        output.config(text="Result: " + result.upper())
+    except ValueError:
+        output.config(text="Invalid Input")
 
-def decimalToHexadecimal(a):
-    b = ''
-    while (a > 0):
-        remainder = a % 16
-        b = conversion_table[remainder] + b
-        a = a // 16
+def hex_subtract():
+    try:
+        num1 = int(entry1.get(), 16)
+        num2 = int(entry2.get(), 16)
+        result = hex(num1 - num2)
+        output.config(text="Result: " + result.upper())
+    except ValueError:
+        output.config(text="Invalid Input")
 
-    return b
+def hex_multiply():
+    try:
+        num1 = int(entry1.get(), 16)
+        num2 = int(entry2.get(), 16)
+        result = hex(num1 * num2)
+        output.config(text="Result: " + result.upper())
+    except ValueError:
+        output.config(text="Invalid Input")
 
+def hex_divide():
+    try:
+        num1 = int(entry1.get(), 16)
+        num2 = int(entry2.get(), 16)
+        result = hex(num1 // num2)
+        output.config(text="Result: " + result.upper())
+    except (ValueError, ZeroDivisionError):
+        output.config(text="Invalid Input")
 
-decimal = int(input("Enter decimal value: "))
-hexadecimal = decimalToHexadecimal(decimal)
+# Main tkinter window
+root = tk.Tk()
+root.title("Hex Calculator")
+
+# Entry fields
+entry1 = tk.Entry(root, width=15)
+entry1.grid(row=0, column=0, padx=10, pady=5)
+entry2 = tk.Entry(root, width=15)
+entry2.grid(row=0, column=1, padx=10, pady=5)
+
+# Buttons
+add_button = tk.Button(root, text="Add", command=hex_add)
+add_button.grid(row=1, column=0, padx=10, pady=5)
+subtract_button = tk.Button(root, text="Subtract", command=hex_subtract)
+subtract_button.grid(row=1, column=1, padx=10, pady=5)
+multiply_button = tk.Button(root, text="Multiply", command=hex_multiply)
+multiply_button.grid(row=2, column=0, padx=10, pady=5)
+divide_button = tk.Button(root, text="Divide", command=hex_divide)
+divide_button.grid(row=2, column=1, padx=10, pady=5)
+
+# Output Label
+output = tk.Label(root, text="Result: ")
+output.grid(row=3, columnspan=2)
+
+root.mainloop()
 
-print("Decimal Value:", decimal)
-print("Hexadecimal Value:", hexadecimal)