python code 1.ipynb

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   "cell_type": "code",
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   "source": [
    "#Task 1 : Design a simple calculator with basic arithmatic operations.\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "select operation.\n",
      "1.add\n",
      "2.substract\n",
      "3.multiply\n",
      "4.divide\n",
      "5 - 1 = 4\n",
      "invalid input.please enter a number.\n"
     ]
    }
   ],
   "source": [
    "# This function add two numbers \n",
    "def add(a,b):\n",
    "    return a + b\n",
    "\n",
    "#This function substracts two numbers\n",
    "def substract(a,b):\n",
    "    return a - b\n",
    "\n",
    "# This function multiplies two numbers \n",
    "def multiply(a,b):\n",
    "    return a * b \n",
    "# This function Divides two numbers\n",
    "def divide(a,b):\n",
    "    return a/b\n",
    "\n",
    "print(\"select operation.\")\n",
    "print(\"1.add\")\n",
    "print(\"2.substract\")\n",
    "print(\"3.multiply\")\n",
    "print(\"4.divide\")\n",
    "\n",
    "while True:\n",
    "    choice = input(\"Enter choice(1/2/3/4):\")\n",
    "\n",
    "    # Check if choice is one of the four options\n",
    "    if choice in ('1','2','3','4'):\n",
    "        try:\n",
    "          num1 = int(input(\"Enter first number.\"))\n",
    "          num2 = int(input(\"enter second number.\"))\n",
    "        except ValueError:\n",
    "            print(\"invalid input.please enter a number.\")\n",
    "            continue \n",
    "        if choice == '1':\n",
    "            print(num1, \"+\", num2, \"=\",\n",
    "                  add(num1,num2))\n",
    "        elif choice == '2':\n",
    "            print(num1, \"-\", num2, \"=\",\n",
    "                  substract(num1,num2))\n",
    "        elif choice == '3':\n",
    "            print(num1, \"*\", num2, \"=\",\n",
    "                  multiply(num1,num2))\n",
    "        elif choice == '4':\n",
    "            print(num1, \"/\", num2, \"=\",\n",
    "                  divide(num1,num2))\n",
    "\n",
    "            #if user wants another calculation \n",
    "            next_calculation = input(\"Let's do next calculation?(yes/no):\")\n",
    "            if next_calculation == \"no\":\n",
    "                break\n",
    "            else:\n",
    "               print(\"Invalid Input\")\n",
    "\n",
    "\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "#Task 2: Design a ROCK-PAPER-SCISSORS GAME using Python Programming.\n",
    "\n",
    "import random\n",
    "\n",
    " \n",
    "\n",
    "options = [\"Rock\", \"Paper\", \"Scissors\"]\n",
    "\n",
    " \n",
    "\n",
    "user_choice = input(\"Choose Rock, Paper, or Scissors: \")\n",
    "\n",
    "computer_choice = random.choice(options)\n",
    "\n",
    " \n",
    "\n",
    "print(\"You chose: \", user_choice)\n",
    "\n",
    "print(\"Computer chose: \", computer_choice)\n",
    "\n",
    " \n",
    "\n",
    "if user_choice == computer_choice:\n",
    "\n",
    "    print(\"It's a tie!\")\n",
    "\n",
    "elif user_choice == \"Rock\" and computer_choice == \"Scissors\":\n",
    "\n",
    "    print(\"You win!\")\n",
    "\n",
    "elif user_choice == \"Paper\" and computer_choice == \"Rock\":\n",
    "\n",
    "    print(\"You win!\")\n",
    "\n",
    "elif user_choice == \"Scissors\" and computer_choice == \"Paper\":\n",
    "\n",
    "    print(\"You win!\")\n",
    "\n",
    "else:\n",
    "\n",
    "    print(\"Computer wins!\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Task - 3 : Design a \"TO DO LIST\" by using python programming.\n",
    "\n",
    "# Import the necessary modules\n",
    "import tkinter as tk\n",
    "\n",
    "# Create the main window\n",
    "window = tk.Tk()\n",
    "window.title(\"To-Do List\")\n",
    "\n",
    "# Create a frame to hold the to-do list items\n",
    "frame = tk.Frame(window)\n",
    "frame.pack()\n",
    "\n",
    "# Create a listbox to display the to-do list items\n",
    "listbox = tk.Listbox(frame)\n",
    "listbox.pack()\n",
    "\n",
    "# Create a function to add a new item to the to-do list\n",
    "def add_item():\n",
    "    item = entry.get()\n",
    "    listbox.insert(tk.END, item)\n",
    "    entry.delete(0, tk.END)\n",
    "\n",
    "# Create a function to remove a selected item from the to-do list\n",
    "def remove_item():\n",
    "    listbox.delete(tk.ACTIVE)\n",
    "\n",
    "# Create a function to mark a selected item as complete\n",
    "def complete_item():\n",
    "    listbox.itemconfig(tk.ACTIVE, foreground=\"gray\")\n",
    "\n",
    "# Create a button to add a new item\n",
    "add_button = tk.Button(frame, text=\"Add\", command=add_item)\n",
    "add_button.pack()\n",
    "\n",
    "# Create a button to remove a selected item\n",
    "remove_button = tk.Button(frame, text=\"Remove\", command=remove_item)\n",
    "remove_button.pack()\n",
    "\n",
    "# Create a button to mark a selected item as complete\n",
    "complete_button = tk.Button(frame, text=\"Complete\", command=complete_item)\n",
    "complete_button.pack()\n",
    "\n",
    "# Create an entry widget to allow the user to enter a new item\n",
    "entry = tk.Entry(frame)\n",
    "entry.pack()\n",
    "\n",
    "# Start the mainloop\n",
    "window.mainloop()"
   ]
  }
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