02-Printing.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# 02 Printing"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Print Statement"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(\"Hello World\")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "In Python, single, double and triple quotes are used to denote a string.<br>\n",
    "Most use single quotes when declaring a single character. <br>\n",
    "Double quotes when declaring a line and ...<br>\n",
    "Triple quotes when declaring a paragraph/multiple lines."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(\"Hello World\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print (\"\"\"My name is <write your name here> and\n",
    "\n",
    "I love Python.\"\"\")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Strings can be assigned to variable say _string1_ and _string2_ which can called when using the print statement."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "scrolled": true
   },
   "outputs": [],
   "source": [
    "string1 = 'World'\n",
    "print('Hello', string1)\n",
    "\n",
    "string2 = '!'\n",
    "print('Hello', string1, string2)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "String concatenation is the \"addition\" of two strings. Observe that while concatenating there will be no space between the strings."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print ('Hello' + string1 + string2)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "**{:s}** is used to refer to a variable which contains a string."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(\"Hello {:s}\".format(string1))"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Similarly, when using other data types\n",
    "\n",
    "    - %s -> string\n",
    "    - %d -> Integer\n",
    "    - %f -> Float\n",
    "    - %o -> Octal\n",
    "    - %x -> Hexadecimal\n",
    "    - %e -> exponential\n",
    "    \n",
    "This can be used for conversions inside the print statement itself."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print (\"Actual Number = %d\" %18)\n",
    "print (\"Float of the number = %f\" %18)\n",
    "print (\"Octal equivalent of the number = %o\" %18)\n",
    "print (\"Hexadecimal equivalent of the number = %x\" %18)\n",
    "print (\"Exponential equivalent of the number = %e\" %18)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## <font color='blue'>The Pythonist way of priting !!!</font>"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print (\"Actual Number = {:d}\".format(18))\n",
    "print (\"Float of the number = {:f}\".format(18))\n",
    "print (\"Octal equivalent of the number = {:o}\".format(18))\n",
    "print (\"Hexadecimal equivalent of the number = {:x}\".format(18))\n",
    "print (\"Exponential equivalent of the number = {:e}\".format(18))"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## <font color='green'>Task 2:</font> Fix the cell and execute"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "'{1} {0}'.format('one', 'two')\n",
    "'{:>10}'.format('test')\n",
    "'{:10}'.format('test')  # Left align\n",
    "# numbers\n",
    "'{:d}'.format(42)\n",
    "'{:f}'.format(3.141592653589793)\n",
    "'{:4d}'.format(42) # padding\n",
    "'{:06.2f}'.format(3.141592653589793)\n",
    "'{:04d}'.format(42)\n",
    "'{: d}'.format((- 23))\n",
    "'{first} {last}'.format(first='Hello', last='world!')\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "When referring to multiple variables parenthesis is used."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(\"Hello {:s} {:s}\".format(string1,string2))"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "##Other Examples"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "The following are other different ways the print statement can be put to use."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print (\"I want %%d to be printed {:s}\".format('here'))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print('_A'*10)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(\"Jan\\nFeb\\nMar\\nApr\\nMay\\nJun\\nJul\\nAug\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(\"I want \\\\n to be printed.\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(\"Look\\twhat\\thappens.\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(\"\"\"\n",
    "Routine:\n",
    "\\t- Eat\n",
    "\\t- Sleep\\n\\t- Repeat\n",
    "\"\"\")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Input data from the keyboard"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "input(\"My name is: \")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "my_name = input('My name is: ')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(\"Hello world, {}!!\".format(my_name))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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