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B.TECH I YEAR • II SEMESTER • R25

Python Programming - Lab Manual

Python Programming Laboratory • Program Solution

📘 R25 Regulation 🎓 I Year 📚 II Semester 🐍 Python Programming 🧪 Lab Program
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sentence as an input parameter and replaces the first letter

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Aim:

☛   Write a function that takes a sentence as an input parameter and replaces the first letter of every word with the corresponding upper case letter and the rest of the letters in the word by corresponding letters in lower case without using a built-in function?

Solution :


PROGRAM: (replace_first.py) 

 
def replace_first(str_in):
	x = list(str_in)
	i = 0
	while i < len(x):
		# consider first character of word
		if i == 0 :
			if ord(x[i]) >= 97 and ord(x[i]) <= 122 :
				x[i] = chr(ord(x[i]) - 32)
		elif x[i] == ' ':
			i = i + 1
			if ord(x[i]) >= 97 and ord(x[i]) <= 122 :
				y = ord(x[i])
				x[i] = chr(y - 32)
		else :
			if ord(x[i]) >= 65 and ord(x[i]) <= 92 :
				x[i] = chr(ord(x[i]) + 32)
		i = i + 1
	str_out = ' '
	for j in x :
		str_out = str_out + j
	return str_out

str_in = input(" Enter any string = ")
str_op = replace_first(str_in)
print(str_op)

OUTPUT: 

 
 Enter any string = welcome TO STUdy glance
 Welcome To Study Glance

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sentence as an input parameter and replaces the first letter
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