Lesson 3.1 Booleans If Else.ipynb

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        "# Kyon  / Jarurat / Need kya hai\n",
        "\n",
        "\n",
        "### Programming is sequence of instruction\n",
        "\n",
        "Sequence --> ek ke baad ek. \n",
        "\n",
        "Real Life Example - \n",
        "\n",
        "College Jana\n",
        "\n",
        "1. Utho \n",
        "2. Nahao \n",
        "3. Kapde pahno \n",
        "4. bag uthao \n",
        "5. Bike lekar college jao \n",
        "\n",
        "\n",
        "\n"
      ]
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        "But it's not always the case. \n",
        "\n",
        "\n",
        "On Sunday \n",
        "\n",
        "1. Utho \n",
        "2. Time Dekho, aaj sunday hai \n",
        "3. Wapas So jao\n"
      ]
    },
    {
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      "source": [
        "# We need Control \n",
        "\n",
        "Conditon ke hisab se change karna \n",
        "\n",
        "\n"
      ]
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        "Condition -- ?\n",
        "\n",
        "Change kaise karna hai --? \n",
        "\n",
        "Condition shi hai ya galat ye kaise check karna hai \n"
      ]
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        "|real examples  | python operator | \n",
        "|----------------|--------------|\n",
        "|day is Sunday - do this |  == |\n",
        "|\n",
        "|day is monday - do that  | == |\n",
        "|\n",
        "|units is greater than 200 | > |\n",
        "|\n",
        "|units is less than 200  | < |\n",
        "|\n",
        "|greater than = | >= |\n",
        "|\n",
        "|less than = | <= |\n",
        "|\n",
        "|day not tuesday  = eat murga | not |\n"
      ]
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      "source": [
        "a+ b  # arithmatic expression \n",
        "\n",
        "day == 'Sunday' # Conditional expression \n",
        "\n",
        "\n",
        "units > 200 # \n",
        "\n",
        "units < 200 \n",
        "\n"
      ]
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        "# condition check karni hai \n",
        "\n",
        "satisfy  ---- True \n",
        "\n",
        "not Satisfy   ---- False \n",
        "\n"
      ]
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      "source": [
        "2 > 5"
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              "False"
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        "5 > 2"
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        "(2 > 5) == True"
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        "(2 > 5) == False "
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        "units > 200 and state == 'Maharashtra'\n",
        "\n",
        "units > 200 or state = 'Uttar pradesh'\n",
        "\n"
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        "not - reverses a boolean value"
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        "not (2 > 5)"
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        "Syntax of if \n",
        "\n",
        "\n",
        "```\n",
        "if conditional_expression : \n",
        "      do something\n",
        "      do something else \n",
        "      1 \n",
        "      2 \n",
        " \n",
        "\n",
        "print(\"program completed\")\n",
        "\n",
        "```\n",
        "\n",
        "blocks of code \n",
        "\n",
        "indentation --  margin used to write code. \n",
        "\n",
        "\n",
        "make blocks same indentation. \n",
        "\n",
        "\n",
        "\n",
        "\n",
        "\n",
        "This will throw error. \n",
        "```\n",
        "if conditional_expression : \n",
        "      do something\n",
        "      do something else \n",
        " \n",
        "\n",
        "print(\"program completed\")\n",
        "\n",
        "```"
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        "\n",
        "if units > 200 : \n",
        "  bill = rate_200 * units \n",
        "  print(\"total bill\")\n",
        "  \n",
        "  \n",
        "  \n",
        "  \n",
        "\n",
        "  \n",
        "  "
      ],
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      "source": [
        "units = 300\n",
        "if units > 200 : \n",
        "  # do somthing\n",
        "  pass \n",
        "  \n",
        "else :\n",
        "  # do somthing else \n",
        "  pass\n",
        "  \n",
        "  "
      ],
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      "source": [
        "if units > 200 and units < 300 : \n",
        "  # do somthings \n",
        "  pass\n",
        "elif units > 300 and units < 400:\n",
        "  # do somehting else \n",
        "  pass \n",
        "else :\n",
        "  # sdome ofshkighskjghfdkjag\n",
        "  pass\n",
        "  "
      ],
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      "source": [
        "**Write code that prints Hello if 1 is stored in spam, prints Howdy if 2 is stored in spam, and prints Greetings! if anything else is stored in spam.**\n",
        "\n"
      ]
    },
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      "source": [
        "spam = 2\n",
        "\n",
        "if spam == 1:\n",
        "  print(\"Hello\")\n",
        "elif spam == 2:\n",
        "  print(\"Howdy!\")\n",
        "else :\n",
        "  print(\"Greetings!\")"
      ],
      "execution_count": 0,
      "outputs": [
        {
          "output_type": "stream",
          "text": [
            "Howdy!\n"
          ],
          "name": "stdout"
        }
      ]
    },
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        ""
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