{
"metadata": {
"name": "",
"signature": "sha256:37ae6cc76fe6f4a8cc8dba62582a6a103f99da5c7579d1a782cb95241f542fd8"
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"nbformat": 3,
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"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 1 , Page number: CP-148"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Program to count the occurence of a particular in a string\n",
"# Variable declaration\n",
"\n",
"st = \"MISSISSIPPI\"\n",
"ch = \"S\"\n",
"count = 0\n",
"\n",
"print \"Enter the string :\",st\n",
"print \"Which character to be counted ?\",ch\n",
"\n",
"# Loop to check occurrence of aa character\n",
"\n",
"l = len(st)\n",
"\n",
"for i in st:\n",
" if i == ch:\n",
" count = count + 1\n",
"\n",
"print \"The character \" + ch + \" occurs %d times\" % count "
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter the string : MISSISSIPPI\n",
"Which character to be counted ? S\n",
"The character S occurs 4 times\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 2 , Page number: CP-149"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Program to count the number of vowels in a sentence\n",
"# Variable declaration\n",
"\n",
"st = \"This is a book\"\n",
"count = 0\n",
"\n",
"print \"Enter the sentence :\"\n",
"print st\n",
"\n",
"# Loop to count the vowels in the string\n",
"\n",
"for i in st:\n",
" if i == \"A\":\n",
" count = count + 1\n",
" elif i == \"E\":\n",
" count = count + 1\n",
" elif i == \"I\":\n",
" count = count + 1\n",
" elif i == \"O\":\n",
" count = count + 1\n",
" elif i == \"U\":\n",
" count = count + 1\n",
" elif i == \"a\":\n",
" count = count + 1\n",
" elif i == \"e\":\n",
" count = count + 1\n",
" elif i == \"i\":\n",
" count = count + 1\n",
" elif i == \"o\":\n",
" count = count + 1\n",
" elif i == \"u\":\n",
" count = count + 1\n",
"\n",
"print \"%d vowels are present in the sentence\" % count\n",
" \n",
" "
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter the sentence :\n",
"This is a book\n",
"5 vowels are present in the sentence\n"
]
}
],
"prompt_number": 2
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 3 , Page number: CP-150"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Program to test whether a given string is a palindrome or not\n",
"# Variable declaration\n",
"\n",
"st = \"HYDERABAD\"\n",
"rst = \"\"\n",
"i = 0\n",
"j = len(st) - 1\n",
"\n",
"print \"Enter the string :\",st\n",
"\n",
"# Palindrome or not \n",
"\n",
"rst = reversed(st)\n",
"\n",
"if list(st) == list(rst):\n",
" print \"%s is a palindrome string \" % st\n",
"else:\n",
" print \"%s is not a palindrome string \" % st"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter the string : HYDERABAD\n",
"HYDERABAD is not a palindrome string \n"
]
}
],
"prompt_number": 3
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 4 , Page number: CP-152"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Program to conctenate two strings\n",
"# Variable declaration\n",
"\n",
"st1 = \"NEW \"\n",
"st2 = \"DELHI\"\n",
"\n",
"# input of two strings to be concatenated\n",
"\n",
"print \"Enter first string :\",st1\n",
"print \"Enter second string :\",st2\n",
"\n",
"# concatenation of two strings\n",
"st = st1 + st2\n",
"\n",
"print \"Resultant string is \",st "
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter first string : NEW \n",
"Enter second string : DELHI\n",
"Resultant string is NEW DELHI\n"
]
}
],
"prompt_number": 4
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 5 , Page number: CP-154"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Program to compare two strings\n",
"# Variable declaration\n",
"\n",
"st1 = \"ALPHA\"\n",
"st2 = \"BETA\"\n",
"\n",
"print \"Enter string 1:\",st1\n",
"print \"Enter string 2:\",st2\n",
"\n",
"# compare strings\n",
"\n",
"if (cmp(st1,st2)>0):\n",
" print \"%s \" + st1 + \"is alphabetically greater string\"\n",
"else:\n",
" print st2 + \" is alphabetically greater string\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter string 1: ALPHA\n",
"Enter string 2: BETA\n",
"BETA is alphabetically greater string\n"
]
}
],
"prompt_number": 5
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 6 , Page number: CP-155"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Program to sort an array of names in alphabetical order\n",
"# Variable declaration\n",
"\n",
"n = 4\n",
"names = [\"DEEPAK\",\"SHERIN\",\"SONIKA\",\"ARUN\"]\n",
"\n",
"print \"How many names ?\",n\n",
"print \"Enter the 4 names one by one\"\n",
"for i in names:\n",
" print i\n",
"\n",
"# Loop to arrange names in alphabetical order\n",
"\n",
"for i in range(0,n-1):\n",
" for j in range(i+1,n):\n",
" if cmp(names[i],names[j])>0:\n",
" \n",
" temp = names[i]\n",
" names[i] = names[j]\n",
" names[j] = temp\n",
"\n",
"print \"Names in alphabetical order\"\n",
"for i in names:\n",
" print i"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"How many names ? 4\n",
"Enter the 4 names one by one\n",
"DEEPAK\n",
"SHERIN\n",
"SONIKA\n",
"ARUN\n",
"Names in alphabetical order\n",
"ARUN\n",
"DEEPAK\n",
"SHERIN\n",
"SONIKA\n"
]
}
],
"prompt_number": 6
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 7 , Page number: CP-157"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Program to convert a line from lower case to upper case\n",
"# Variable declaretion\n",
"\n",
"import sys\n",
"\n",
"st = ['l','o','g','i','c','a','l',' ','t','h','i','n','k','i','n','g',' ','i','s',' ','a',' ','m','u','s','t',' ','t','o',' ','l','e','a','r','n',' ','p','r','o','g','r','a','m','m','i','n','g']\n",
"\n",
"print \"Enter a sentence :\"\n",
"for i in st:\n",
" print i,\n",
"print \n",
"print \"The converted upper case string is\"\n",
"# loop to convert lower case alphabet to upper case text\n",
"for i in range(len(st)):\n",
" if st[i] >= 'a' and st[i] <= 'z':\n",
" st[i] = chr(ord(st[i])-32)\n",
"\n",
"\n",
" sys.stdout.write(st[i])"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter a sentence :\n",
"l o g i c a l t h i n k i n g i s a m u s t t o l e a r n p r o g r a m m i n g\n",
"The converted upper case string is\n",
"LOGICAL THINKING IS A MUST TO LEARN PROGRAMMING"
]
}
],
"prompt_number": 13
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 9 , Page number: CP-160"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Program to read a text and to omit al occurrences of a particular word\n",
"# Variable declartion\n",
"\n",
"st = \"TO ACCESS THE NAME OF THE CITY IN THE LIST\"\n",
"i = 0\n",
"omit = \"THE\"\n",
"l = len(st)\n",
"j = 0\n",
"word = []\n",
"newst = \"\"\n",
"onesps = \"\"\n",
"print \"Enter a sentence :\"\n",
"print st\n",
"print \"Enter word to omit :\",omit\n",
"\n",
"# loop to omit the given word\n",
"\n",
"for i in range(l):\n",
" ch = i\n",
" if ch == ' ':\n",
" for j in word:\n",
" j = \" \" \n",
" if j == omit:\n",
" newst = j\n",
" newst = onesps\n",
" j = \" \"\n",
" j = 0\n",
" else:\n",
" j = ch\n",
" j = j + 1\n",
" i = i + 1\n",
"\n",
"print \"After omiting the word \" + omit\n",
"print newst\n",
"print \"Press any key to continue\"\n",
" "
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter a sentence :\n",
"TO ACCESS THE NAME OF THE CITY IN THE LIST\n",
"Enter word to omit : THE\n",
"After omiting the word THE\n",
"\n",
"Press any key to continue\n"
]
}
],
"prompt_number": 14
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 10 , Page number: CP-161"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Program to calculate the amount to be paid for the telegram\n",
"# Variable declaration\n",
"\n",
"count = 0\n",
"st = \"Congratulations on your success in Examinations.\"\n",
"l = len(st)\n",
"\n",
"print \"Type the sentence for Telegram\"\n",
"print st\n",
"\n",
"# loop to count number of words\n",
"\n",
"for i in range(l):\n",
" if st[i] == '?':\n",
" count = count + 1\n",
"\n",
"if count <= 10:\n",
" amt = 5\n",
"else:\n",
" amt = 5 + (count - 10) * 1.25\n",
"\n",
"print \"Amount to be paid for telegram = Rs.%0.2f\" % amt "
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Type the sentence for Telegram\n",
"Congratulations on your success in Examinations.\n",
"Amount to be paid for telegram = Rs.5.00\n"
]
}
],
"prompt_number": 15
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 11 , Page number: CP-163"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Program to count number of lines,words and characters\n",
"# Variable declaration\n",
"\n",
"txt = \"What is a string? How do you initialize it? Explain with example.$\"\n",
"st = \"\"\n",
"i = 0\n",
"lns = 0\n",
"wds = 0\n",
"chs = 0\n",
"\n",
"print \"Enter the text, type $ at end.\"\n",
"print txt\n",
"\n",
"# loop to count lines,words and characters in text\n",
"\n",
"while txt[i] != '$':\n",
" # switch case statements\n",
" if txt[i] == ' ':\n",
" wds = wds + 1\n",
" chs = chs + 1\n",
" elif txt[i] == '.':\n",
" wds = wds + 1\n",
" lns = lns + 1\n",
" chs = chs + 1\n",
" elif txt[i] == '?':\n",
" lns = lns + 1\n",
" else: # default\n",
" chs = chs + 1\n",
"\n",
" i = i + 1\n",
"\n",
"print \"Number of char (incl. blanks) =\",chs\n",
"print \"Number of words =\",wds\n",
"print \"Number of lines =\",lns\n",
"\n",
"\n",
" "
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter the text, type $ at end.\n",
"What is a string? How do you initialize it? Explain with example.$\n",
"Number of char (incl. blanks) = 63\n",
"Number of words = 12\n",
"Number of lines = 3\n"
]
}
],
"prompt_number": 16
},
{
"cell_type": "code",
"collapsed": false,
"input": [],
"language": "python",
"metadata": {},
"outputs": []
}
],
"metadata": {}
}
]
}