Page 51 - ipp11

(c) n=int (input("enter the limit"))

print("reverse numbers are as follows")
for i in range(n,0,-1):
print(i)
37. (a) Write a menu-driven Python program to perform the following basic string operations: [5]
(i) Convert to uppercase
(ii) Convert to lowercase
(iii) Count characters
(iv) Reverse string
(v) Exit
Or
(b) Write a menu-driven Python program that manages a Library Book Tracking System using a dictionary. The
program should allow users to add books, update no. of books, issue books and display books.
The menu should display the following options:
(i) Add a New Book
(ii) Update Number of Copies
(iii) Issue a Book (reduce copy count)
(iv) Display All Books (sorted by title)
(v) Exit the program

Ans. (a) while True:
print("\n1. Uppercase\n2. Lowercase\n3. Character Count\n4. Reverse\
n5. Exit")
choice = int(input("Enter your choice: "))
if choice == 5:
break
s = input("Enter a string: ")
if choice == 1:
print(s.upper())
elif choice == 2:
print(s.lower())
elif choice == 3:
print("Length:", len(s))
elif choice == 4:
print("Reversed:", s[::-1])
else:
print("Invalid choice")
Or
(b) library = {}

while True:
print("\n===== Library Menu =====")
print("a. Add a New Book")
print("b. Update Number of Copies")
print("c. Issue a Book")
print("d. Display All Books (Sorted by Title)")
print("e. Exit")
choice = input("Enter your choice (a-f): ").lower()
if choice == 'a':
book = input("Enter book title: ")
if book in library:
print("Book already exists in the library.")

M.21