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‎Basics/Exercise/4_strings/4_strings_exercise_solutions.ipynb‎

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{
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"nbformat": 4,
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"nbformat_minor": 0,
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"metadata": {
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"colab": {
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"provenance": []
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},
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"kernelspec": {
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"name": "python3",
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"display_name": "Python 3"
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},
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"language_info": {
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"name": "python"
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}
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},
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"cells": [
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{
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"cell_type": "markdown",
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"source": [
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"# **Exercise: String in Python**"
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],
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"metadata": {
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"id": "wWdZb5sDGkVU"
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}
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},
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{
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"cell_type": "markdown",
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"source": [
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"1.Create 3 variables to store street, city and country, now create address variable to store entire address. Use two ways of creating this variable, one using + operator and the other using f-string. Now Print the address in such a way that the street, city and country prints in a separate line."
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],
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"metadata": {
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"id": "HyF752biHTy4"
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}
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},
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{
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"cell_type": "code",
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"execution_count": 6,
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"metadata": {
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"colab": {
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"base_uri": "https://localhost:8080/"
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},
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"id": "pmUMronzEofB",
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"outputId": "7a58ae98-cf82-475a-ef9e-dfd8f01f2aa0"
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},
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"outputs": [
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{
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"output_type": "stream",
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"name": "stdout",
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"text": [
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"using + operation: 24\n",
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"Nagpur\n",
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"india\n",
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"My full address is:24,city i lived in is:Nagpur,and im from:india\n"
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]
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}
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],
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"source": [
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"street = 24\n",
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"city =\"Nagpur\"\n",
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"country=\"india\"\n",
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"address = str(street) + \"\\n\" + city + \"\\n\" + country\n",
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"print(\"using + operation:\" ,address)\n",
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"\n",
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"print(f\"My full address is:{street},city i lived in is:{city},and im from:{country}\")"
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]
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},
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{
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"cell_type": "markdown",
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"source": [
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"**Explanation**:**Using + operator:**\n",
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"\n",
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"The + operator joins strings.\n",
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"\n",
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"\"\\n\" adds a new line, so each part of the address prints on a separate line.\n",
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"\n",
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"# **Using f-string:**\n",
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"\n",
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"f-strings allow you to embed variables directly inside a string using {}.\n",
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"\n",
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"f\"{street}\\n{city}\\n{country}\" does the same as above, but it's cleaner and easier to read."
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],
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"metadata": {
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"id": "JRYTIFyrKuUx"
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}
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},
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{
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"cell_type": "markdown",
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"source": [
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"2.Create a variable to store the string \"Earth revolves around the sun\"\n",
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"\n",
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"Print \"revolves\" using slice operator\n",
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"\n",
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"Print \"sun\" using negative index"
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],
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"metadata": {
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"id": "CAxSd-1wLQ3k"
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}
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},
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{
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"cell_type": "code",
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"source": [
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"sentence = \"Earth revolves around the sun\"\n",
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"\n",
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"# Print \"revolves\" using slice operator\n",
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"print(sentence[6:14])\n",
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"\n",
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"# Print \"sun\" using negative indexing\n",
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"print(sentence[-3:])"
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],
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"metadata": {
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"colab": {
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"base_uri": "https://localhost:8080/"
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},
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"id": "U3M36AP6Lzml",
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"outputId": "fb213e93-4997-4957-cd25-1380c3166f7c"
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},
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"execution_count": 8,
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"outputs": [
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{
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"output_type": "stream",
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"name": "stdout",
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"text": [
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"revolves\n",
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"sun\n"
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]
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}
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]
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},
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{
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"cell_type": "markdown",
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"source": [
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"**Explanation:**\n",
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"sentence[6:14]\n",
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"\n",
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"This slices the string from index 6 up to (but not including) index 14.\n",
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"\n",
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"It gives: \"revolves\"\n",
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"\n",
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"sentence[-3:]\n",
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"\n",
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"Negative indexing starts from the end of the string.\n",
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"\n",
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"-3: means from the third character from the end to the end.\n",
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"\n",
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"It gives: \"sun\""
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],
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"metadata": {
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"id": "I1iZNgzmNZMY"
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}
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},
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{
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"cell_type": "markdown",
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"source": [
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"3.Create two variables to store how many fruits and vegetables you eat in a day. Now Print \"I eat x veggies and y fruits daily\" where x and y presents vegetables and fruits that you eat everyday. Use python f string for this."
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],
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"metadata": {
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"id": "EQ2R68e2NjH8"
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}
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},
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{
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"cell_type": "code",
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"source": [
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"fruits = 2\n",
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"vegetables = 3\n",
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"\n",
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"print(f\"I eat {vegetables} veggies and {fruits} fruits daily\")"
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],
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"metadata": {
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"colab": {
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"base_uri": "https://localhost:8080/"
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},
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"id": "F-UalNVdNpWm",
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"outputId": "c5e5970d-7a01-40cd-b5d8-119835122da1"
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},
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"execution_count": 9,
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"outputs": [
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{
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"output_type": "stream",
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"name": "stdout",
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"text": [
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"I eat 3 veggies and 2 fruits daily\n"
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]
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}
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]
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},
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{
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"cell_type": "markdown",
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"source": [
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"**Explanation:**\n",
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"\n",
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"fruits = 2\n",
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"\n",
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"stores how many fruits you eat daily.\n",
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"\n",
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"vegetables = 3\n",
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"\n",
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"stores how many vegetables you eat daily.\n",
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"\n",
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"The f-string lets you insert variables directly into the string using {}.\n",
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"\n"
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],
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"metadata": {
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"id": "MEprQw-MN4OH"
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}
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},
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{
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"cell_type": "markdown",
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"source": [
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"4.I have a string variable called s='maine 200 banana khaye'. This of course is a wrong statement, the correct statement is 'maine 10 samosa khaye'. Replace incorrect words in original strong with new ones and print the new string. Also try to do this in one line."
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],
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"metadata": {
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"id": "eb-neHDbOEGu"
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}
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},
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{
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"cell_type": "code",
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"source": [
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"s = 'maine 200 banana khaye'\n",
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"s = s.replace(\"200\" , \"10\").replace('banana' , 'samosa')\n",
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"print(s)\n"
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],
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"metadata": {
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"colab": {
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"base_uri": "https://localhost:8080/"
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},
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"id": "G29vvU0HOKrh",
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"outputId": "93f9e52b-5848-40ab-b97a-7b573a5e3b35"
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},
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"execution_count": 11,
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"outputs": [
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{
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"output_type": "stream",
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"name": "stdout",
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"text": [
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"maine 10 samosa khaye\n"
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]
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}
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]
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},
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{
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"cell_type": "markdown",
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"source": [
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"**Explanation:**\n",
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"\n",
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"s.replace(\"200\", \"10\") replaces \"200\" with \"10\".\n",
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"\n",
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"Chaining .replace() lets you do multiple replacements in one line.\n",
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"\n",
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"Final output:\n",
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"\n",
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" maine 10 samosa khaye\n"
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],
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"metadata": {
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"id": "WfDzE-yOPAO-"
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}
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}
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]
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}

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