Question

1.Write a python program that writes a series of random numbers to a file named random.txt. Each random number should be in the range of 1 through 300. The application should let the user specify how many random numbers the file will hold.

2. Write another program that reads the random numbers from the random.txt file, displays the numbers, then displays the following data:

I. The total of the numbers

II. The number of random numbers read from the file

Answer 1

Source code:

pr1.py

import random
f = open("random.txt", "a")
rn = input("How many random numbers you want to enter in file ? ")
rn = int(rn)           # convert string to int

for x in range(rn):
    i = random.randint(1,301)
    i = str(i)           # convert int to string
    f.write(i +'\n')       # write to file line by line

prg2.py

f = open("random.txt", "r")
sumOfNums = 0
count = 0

for num in f:
   print(num)
   sumOfNums = sumOfNums + int(num)       # convert string to int and add it to sumOfNums
   count = count + 1               # increment count
  
print("Number of random numbers: %d\n" %count)
print("Sum of random numbers : %d\n" %sumOfNums)

Output: