Question

2. Write a program with a function that accepts a string as an argument and returns a copy of the string with the first character of each sentence capitalized. For instance, if the argument is "hello. my name is Joe. what is your name?" the function should return the string "Hello. My name is Joe. What is your name?" The program should let the user enter a string and then pass it to the function. The modified string should be displayed.

Answer 1

Answer:

Following are the code to this question:

def capital(val):#defining a method that takes string value as parameter

   x=True#defining boolean variable

   r=''#defining string variable  

   for i in val:#defining loop to convert the first character into upper case

       if i.isalpha() and x:#defining condition to check input value is string

           r=r+i.upper()#change value into uppercase and hold value in r variable

           x=False#assign value false in boolean variable

       elif i=='.' or i=='?' or i=='!':#check symbols

           r=r+i#add value in r variable

           x=True#assign value True in boolean variable

       else:

           r=r+i#add all value in r variable

   return r#return r variable value

val=input()#input value in val variable

print(capital(val))#called the function which print the return value

Output:

please find the attachment.

Explanation:

• In the above python program, a method "capital" is declared, which accepts a "val" a string value in its parameter, and inside the method one boolean "x" and one string "r" variable is used, in which r stores return value.
• In the next step, for loop is declared, inside the loop, the conditional statement is used, in if the block it checks string value and converts the first character into upper case and assigns value false in the boolean variable.  
• In the next step, elif block is defined that adds value in r variable and at the last, it will return function value, at the last step "val" variable is declared that input value from the user and pass into the method and print its return value.