Question

1. The first small program realizes the following functions:

(1) The program allows input of ID (3-digit integer representation), month (1-12), revenue and record these information in file1

(2) If the ID entered by the user and the income of the corresponding month already exist in file1, remind: the income information has been entered, please do not repeat the entry

2. The second small program realizes the following functions:

(1) Calculate the tax payable for each ID in file1 in each month (12% of revenue) and record it in each line of record in file1

3. The third small program realizes the following functions

(1) Write a search function, whose parameters are ID and month, and return the tax payable

(2) Call the find function to print the tax payable according to the ID and month entered by the user

(3) Reminder if there is no ID to query in file 1 or there is no tax payable record in the corresponding month, you need to give a text reminder

Requirement:

(1) Using markdown in the jupyter file first introduces the design idea and test effect of each small program (describes the information input during the test and adds the diagram)

Please use Python Programming Language   No explicit requirements for output results

Answer 1

Here is the answer for your question in Python Programming Language.

NOTE : According to Chegg Policy experts are allowed to answer a max of one question when given multiple questions in a single question. Answered as per the Chegg Policy. Apologies for this.

I have answered question no.1 (1.1 & 1.2). To help you have answered part-2 also.Please check

CODE :

"""Creates a new file """ file = open("file1.txt","w+") """ To create new record with given parameters""" def createRecord(ID,month,revenue):    """Reads and stores current file data in records""" with open("file1.txt") as f1: lines = f1.readlines() records = [] for eachLine in lines: eachRecord = [] for data in eachLine.split(" "): eachRecord.append(data.replace("\n","")) records.append(eachRecord) f1.close()    """Inserts new record to file""" with open("file1.txt","a+") as f2: for eachRecord in records: if (str(ID) in eachRecord) and (str(revenue) in eachRecord): print("The income information has been entered, please do not repeat the entry") return f2.write("{0} {1} {2}\n".format(int(ID),int(month),float(revenue))) print("Record inserted successfully...") print("-------------------------------") f2.close() """Part - (2) : To calculate tax payable and add the tax to each record""" def TaxPayable():    """Reads and stores file data in records""" with open("file1.txt") as f: lines = f.readlines() records = [] for eachLine in lines: eachRecord = [] for data in eachLine.split(" "): eachRecord.append(data.replace("\n","")) records.append(eachRecord) f.close()    """Calculates taxt and replaces every line including tax""" with open("file1.txt","w") as f1: for eachRecord in records: tax = float(eachRecord[2])*(0.12) f1.write("{0} {1} {2} {3}\n".format(int(eachRecord[0]),int(eachRecord[1]),float(eachRecord[2]),float(tax))) f1.close() """Asks user for data continously until user wants to exit""" while True: try: print("-------------------------------------------------\n") ID = int(input("Please enter ID (Press -1 to exit) : ")) if ID == -1: break;    while (ID < 100 or ID >999): print("ID should be three digits only") ID = int(input("Please enter ID (Press -1 to exit) : "))    month = int(input("Please enter month(1-12) (Press -1 to exit) : ")) if month == -1: break    while (month < 1 or month >12): print("Please enter month between 1 and 12") month = int(input("Please enter month(1-12) (Press -1 to exit) : "))    revenue = float(input("Please enter revenue (Press -1 to exit) : ")) if revenue == -1: break print("-------------------------------------------------") createRecord(ID,month,revenue)    except ValueError: print("Value Error : Please enter correct values..")    TaxPayable()

SCREENSHOTS :

Please see he screenshots of the code below for the indentations of the code.As python is a language of indentations kindly check the identations before execution.

1 9 readData.py "Creates a new file " 2 file = open("file1.txt", "w+") 3 4 To create new record with given parameters""" 5 def createRecord(ID, month, revenue): 6 7 "Reads and stores current file data in records". 8 with open("file1.txt") as f1: lines = f1.readlines () 10 records = [] 11 for eachLine in lines: 12 eachRecord = [] 13 for data in eachLine.split(" "): 14. eachRecord.append(data.replace("\n","")) 15 records.append(eachRecord) 16 f1.close() 17 18 "" "Inserts new record to file""" 19 with open("file1.txt", "a+") as f2: 20 for eachRecord in records: 21 if (str(ID) in eachRecord) and (str(revenue) in eachRecord): 22 print("The income information has been entered, please do not repeat the entry") 23 return 24 f2.write("{0} {1} {2}\n".Format(int(ID), int(month), float(revenue))) 25 print("Record inserted successfully...") 26 print(" 27 f2.close() 28 29 """Part - (2) : To calculate tax payable and add the tax to each record" 30 def TaxPayable():

readData.py 31 32 "Reads and stores file data in records". 33 with open("file1.txt") as f: 34 lines = f.readlines() 35 records = [] 36 for eachLine in lines: 37 eachRecord = [] 38 for data in eachLine.split(" "): 39 eachRecord.append(data.replace("\n","")) 40 records.append(eachRecord) 41 f.close() 42 43 """Calculates taxt and replaces every line including tax""" 44 with open("file1.txt", "w") as f1: 45 for eachRecord in records: 46 tax = float(eachRecord[2])*(0.12) 47 f1.write("{0} {1} {2} {3}\n".format(int(eachRecord[0]),int(eachRecord[1]), float(eachRecord[2]), float 48 f1.close() 49 50" "Asks user for data continously until user wants to exit""" 51 while True: 52 try: 53 print(" - \n") 54 ID = int(input("Please enter ID (Press -1 to exit) : ")) 55 if ID == -1: 56 break; 57 58 while (ID < 100 or ID >999): 59 print("ID should be three digits only") 60 ID = int(input("Please enter ID (Press -1 to exit) : "))

ID = int(input("Please enter ID (Press -1 to exit) : ")) month = int(input("Please enter month(1-12) (Press -1 to exit) : ")) if month == -1: break 60 61 62 63 64 65 66 67 68 69 70 71 while (month < 1 or month >12): print("Please enter month between 1 and 12") month = int(input("Please enter month(1-12) (Press -1 to exit) : ")) 72 73 74 revenue = float(input("Please enter revenue (Press -1 to exit) : ")) if revenue == -1: break print("--- -") createRecord(ID, month, revenue) 75 76 except ValueError: print("Value Error : Please enter correct values..") 77 78 79 TaxPayable() 80 81 02

OUTPUT :

Please enter ID (Press -1 to exit) : 908 Please enter month (1-12) (Press -1 to exit) : 10 Please enter revenue (Press -1 to exit) 9000 .. Record inserted successfully... Please enter ID (Press -1 to exit) : 789 Please enter month (1-12) (Press -1 to exit) : 6 Please enter revenue (Press -1 to exit) 9000 . Record inserted successfully... Please enter ID (Press -1 to exit) : 567 Please enter month(1-12) (Press -1 to exit) : 5 Please enter revenue (Press -1 to exit) : 8700 Record inserted successfully... Please enter ID (Press -1 to exit) : 567 Please enter month(1-12) (Press -1 to exit) : 5 Please enter revenue (Press -1 to exit) 8700

Please enter ID (Press -1 to exit) : 567 Please enter month (1-12) (Press -1 to exit) : 5 Please enter revenue (Press -1 to exit) : 8700 The income information has been entered, please do not repeat the entry Please enter ID (Press -1 to exit) : 678 Please enter month(1-12) (Press -1 to exit) : 9 Please enter revenue (Press -1 to exit) : 7800 Record inserted successfully... -1 Please enter ID (Press -1 to exit) >>

file1.txt

file 1.txt X 1 2 3 908 10 9000.0 1080.0 789 6 9000.0 1080.0 567 5 8700.0 1044.0 678 9 7800.0 936.0 4. 5

Any douts regarding this acn be explained with pleasure :)