10 Important String Programs in Python for Practice with Solutions - Part 2

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Important String Programs in Python for exams are given below:

Q11. Write a program to display the largest word from the string.

Show Answer
Ans. 

str=input("Enter any String :")
L = str.split()
max=0
b=""
for i in L:
     if len(i) > max:
           b=i
           max=len(i)
print("Longest word is ",b)

Q12. Write a program to accept a string and display it in upper case.

Show AnswerAns.

str=input("Enter any String :")
print(str.upper( ))

#Execution of program is :

Enter any String :String Programs
 STRING PROGRAMS

Q13. Write a program to display the unique words from the string.

Show AnswerAns. 

str=input("Enter any String :")
L=str.split( )
L1=[ ]
for i in L:
     if i not in L1:
         L1.append(i)
str=""
for i in L1:
     str=str+" "+i
print("String with unique words are :",str)

Execution of Program
Enter any String : string program practice string program
String with unique words are :  string program practice

Q14. Write a program to accept a string and display the ascii value of each character.

Show AnswerAns. 

str=input("Enter any String :")
for i in str:
     print("ASCII value of ",i,"is",ord(i))

#Execution of the program
Enter any String :  String Programs
 ASCII value of  S is 83
 ASCII value of  t is 116
 ASCII value of  r is 114
 ASCII value of  i is 105
 ASCII value of  n is 110
 ASCII value of  g is 103
 ASCII value of    is 32
 ASCII value of  P is 80
 ASCII value of  r is 114
 ASCII value of  o is 111
 ASCII value of  g is 103
 ASCII value of  r is 114
 ASCII value of  a is 97
 ASCII value of  m is 109
 ASCII value of  s is 115

Q15. Write a program to accept a string and replace all spaces by ‘#’ symbol.

Show AnswerAns.

str=input("Enter any String :")
str1=""
for i in str:
      if i.isspace():
          str1=str1+'#'
      else:
          str1=str1+i
print("Output String is :",str1)

#Execution of program

Enter any String :practice string programs
Output String is : practice#string#programs

Q16. Write a program to accept two strings from the user and display the common words.(Ignore case)

Show AnswerAns. 

str1=input("Enter first String :")
str2=input("Enter second String :")
L1=str1.split()
L2=str2.split()
for i in L1:
     if i in L2:
         print(i)

#Execution of program is :

Enter first String : program string programs
Enter second String : program
program

Q17. Write a program to accept a string and count the frequency of each vowel.

Show AnswerAns

str1=input("Enter String :")
print("frequency of vowel 'a' is :",str1.count('a'))
print("frequency of vowel 'e' is :",str1.count('e'))
print("frequency of vowel 'i' is :",str1.count('i'))
print("frequency of vowel 'o' is :",str1.count('o'))
print("frequency of vowel 'u' is :",str1.count('u'))

#Execution of program 

Enter String :Important String Programs
 frequency of vowel 'a' is : 2
 frequency of vowel 'e' is : 0
 frequency of vowel 'i' is : 1
 frequency of vowel 'o' is : 2
 frequency of vowel 'u' is : 0

Q18. Write a program to display the smallest word from the string.

Show AnswerAns.

str=input("Enter any String :")
L = str.split()
min=50 #we think that length of any word in the string is not larger than 50 (can give any other number)
b=""
for i in L:
     if len(i) < min:
           b=i
           min=len(i)
print("Smallest word is : ",b)

#Execution of program:

Enter any String :important string programs
Smallest word is : string

Q19. Write a program to accept a string and display the string in Title case. (first alphabet of each word in upper case)

Show AnswerAns.

str=input("Enter any String :")
print(str.title())

#Execution of program is :

Enter any String :my name is amit
My Name Is Amit

Q20. Write a program to accept a string and display the string with changed case.(Change upper case alphabet to lower case and vice versa)

Show Answer
Ans. 

str=input("Enter any String :")
print(str.swapcase())

#Execution of program is :
Enter any String :My name is Amit
mY NAME IS aMIT

PART – 1

Disclaimer : I tried to give you the correct code of all the string programs, but if you feel that there is/are mistakes in the string programs given above, you can directly contact me at csiplearninghub@gmail.com. Also Share your feedback so that I can give better content to you.