Question

Write a program that keeps a map in which both keys and values are strings—the names of students and their course grades. Prompt the user of the program to add or remove students, to modify grades, or to print all grades. The printout should be sorted by name and formatted like this:

Carl: B+

Joe: C

Sarah: A

Answer 1

Here is code in python:

data = {}

while(True):

print("\n1.Add students\n2.Display students\n3.Remove student\n4.Modify grade\n5.Exit\nEnter your choice : ")

choice = int(input())

if(choice == 1):

name = input("Enter name : ")

grade = input("Enter grade : ")

data[name] = grade

elif(choice == 2):

for s in data.keys():

print(s ," : ",data[s])

elif(choice == 3):

name = input("Enter name to be removed : ")

if name in data.keys():

del data[name]

else:

print("Name not found.")

elif(choice == 4):

name = input("Enter name to be modified : ")

if name in data.keys():

grade = input("Enter grade : ")

data[name] = grade

else:

print("Name not found.")

elif(choice == 5):

break

else:

print("Invalid choice")

Output: