Question

Please fulfill the requirements. Thank you

Objectives:

• Perform C++ string object manipulation
• Understand how to manipulate data using arrays
• Handle input errors and invalid values
• Design and create a well-structured program using C++ basic programming constructs

Description:

Write a menu-driven program that provides the following options:

1. Show All
2. Spend
3. Search expenses containing this string
4. Search expenses with greater than or equal to this amount
5. Exit

It allows the user to select a menu option to display all expenses, add new entry, search for a substring and find the list of entries greater a given amount.

Requirements:

1. The program must produce similar output as example below. The output should be formatted nicely as given.
2. The program must use array of structs
3. The program must not use global variables. In another words, it must use local variables and pass-by-value or pass-by-reference parameters.
4. The program must define the maximum number of entries such as 100 and keeps track of the actual count of the current number of expenses entered by the user
5. You should not use data file to save or read from. All operations should be done through the use of arrays and array indices.
6. You must write at least 2 functions.
7. Do not use namespace std

Required error handling:

The program MUST perform the following checks:

1. Check for invalid amount (negative or 0 number)
2. Description cannot be empty.
3. Search is case-insensitive (ignore case, but the user may type in any case).

Sample run:

D:\>TrackExpensesUsingArray.exe

Welcome to my expense tracker.

Expense Tracking Menu:

1. show all

2. spend

3. search expenses containing this string

4. search expenses with greater than or equal to this amount

5. exit

Enter your option: 1

There is no expense entry available.

Expense Tracking Menu:

1. show all

2. spend

3. search expenses containing this string

4. search expenses with greater than or equal to this amount

5. exit

Enter your option: 2

Please enter the description for the expense: Monthly telephone and Internet services

Please enter the amount: 45.25

AMOUNT(45.25) DESC(Monthly telephone and Internet services)

Expense Tracking Menu:

1. show all

2. spend

3. search expenses containing this string

4. search expenses with greater than or equal to this amount

5. exit

Enter your option: 2

Please enter the description for the expense: Monthly electric, water and gas

Please enter the amount: 200.20

AMOUNT(200.2) DESC(Monthly electric, water and gas)

Expense Tracking Menu:

1. show all

2. spend

3. search expenses containing this string

4. search expenses with greater than or equal to this amount

5. exit

Enter your option: 2

Please enter the description for the expense: Rent

Please enter the amount: 1200

AMOUNT(1200) DESC(Rent)

Expense Tracking Menu:

1. show all

2. spend

3. search expenses containing this string

4. search expenses with greater than or equal to this amount

5. exit

Enter your option: 2

Please enter the description for the expense: Netflix membership

Please enter the amount: 12.90

AMOUNT(12.9) DESC(Netflix membership)

Expense Tracking Menu:

1. show all

2. spend

3. search expenses containing this string

4. search expenses with greater than or equal to this amount

5. exit

Enter your option: 2

Please enter the description for the expense: Amazon membership

Please enter the amount: 99

AMOUNT(99) DESC(Amazon membership)

Expense Tracking Menu:

1. show all

2. spend

3. search expenses containing this string

4. search expenses with greater than or equal to this amount

5. exit

Enter your option: 2

Please enter the description for the expense: Monthly gym membership

Please enter the amount: 50

AMOUNT(50) DESC(Monthly gym membership)

Expense Tracking Menu:

1. show all

2. spend

3. search expenses containing this string

4. search expenses with greater than or equal to this amount

5. exit

Enter your option: 1

Expenses:

AMOUNT(45.25) DESC(Monthly telephone and Internet services)

AMOUNT(200.2) DESC(Monthly electric, water and gas)

AMOUNT(1200) DESC(Rent)

AMOUNT(12.9) DESC(Netflix membership)

AMOUNT(99) DESC(Amazon membership)

AMOUNT(50) DESC(Monthly gym membership)

Expense Tracking Menu:

1. show all

2. spend

3. search expenses containing this string

4. search expenses with greater than or equal to this amount

5. exit

Enter your option: 3

Please enter the search string: membership

AMOUNT(12.9) DESC(Netflix membership)

AMOUNT(99) DESC(Amazon membership)

AMOUNT(50) DESC(Monthly gym membership)

Expense Tracking Menu:

1. show all

2. spend

3. search expenses containing this string

4. search expenses with greater than or equal to this amount

5. exit

Enter your option: 3

Please enter the search string: MEMBERSHIP

AMOUNT(12.9) DESC(Netflix membership)

AMOUNT(99) DESC(Amazon membership)

AMOUNT(50) DESC(Monthly gym membership)

Expense Tracking Menu:

1. show all

2. spend

3. search expenses containing this string

4. search expenses with greater than or equal to this amount

5. exit

Enter your option: 4

Please enter the amount: 50

AMOUNT(200.2) DESC(Monthly electric, water and gas)

AMOUNT(1200) DESC(Rent)

AMOUNT(99) DESC(Amazon membership)

AMOUNT(50) DESC(Monthly gym membership)

Expense Tracking Menu:

1. show all

2. spend

3. search expenses containing this string

4. search expenses with greater than or equal to this amount

5. exit

Enter your option: 4

Please enter the amount: 200

AMOUNT(200.2) DESC(Monthly electric, water and gas)

AMOUNT(1200) DESC(Rent)

Expense Tracking Menu:

1. show all

2. spend

3. search expenses containing this string

4. search expenses with greater than or equal to this amount

5. exit

Enter your option: 4

Please enter the amount: 1000

AMOUNT(1200) DESC(Rent)

Expense Tracking Menu:

1. show all

2. spend

3. search expenses containing this string

4. search expenses with greater than or equal to this amount

5. exit

Enter your option: 2

Please enter the description for the expense: Home repair and improvement

Please enter the amount: -1

Invalid amount. Amount cannot be negative or string. Please try it again.

Please enter the amount: -100

Invalid amount. Amount cannot be negative or string. Please try it again.

Please enter the amount: -1000

Invalid amount. Amount cannot be negative or string. Please try it again.

Please enter the amount: 175.75

AMOUNT(175.75) DESC(Home repair and improvement)

Expense Tracking Menu:

1. show all

2. spend

3. search expenses containing this string

4. search expenses with greater than or equal to this amount

5. exit

Enter your option: 1

Expenses:

AMOUNT(45.25) DESC(Monthly telephone and Internet services)

AMOUNT(200.2) DESC(Monthly electric, water and gas)

AMOUNT(1200) DESC(Rent)

AMOUNT(12.9) DESC(Netflix membership)

AMOUNT(99) DESC(Amazon membership)

AMOUNT(50) DESC(Monthly gym membership)

AMOUNT(175.75) DESC(Home repair and improvement)

Expense Tracking Menu:

1. show all

2. spend

3. search expenses containing this string

4. search expenses with greater than or equal to this amount

5. exit

Enter your option: 5

D:\>

Answer 1

#include<bits/stdc++.h>
using namespace std;

struct data{
double amount;
vector<string> desc;
};

void printDesc(vector<string> &desc)
{
int i,n=desc.size();
for(i=0;i<n;i++)
{
cout<<desc[i]<<" ";
}
}

void showAll(vector<data> &arr)
{
int i,j,k,n=arr.size();
if(n==0)
{
cout<<"There is no expense entry available\n";
return;
}
for(i=0;i<n;i++)
{
  
cout<<"AMOUNT("<<arr[i].amount<<") DESC(";
printDesc(arr[i].desc);
cout<<")\n";
}
}

void split_string(string& des,vector<string>& desc_arr)
{
int i=0,n=des.length();
while(i<n)
{
string temp="";
while(i<n && des[i]!=' ')
{
temp+=des[i];
i++;
}
desc_arr.push_back(temp);
i++;
}
}

void spend(vector<data> &arr)
{
string des;
double amt;
cout<<"Please enter the description for the expense:";
cin.ignore();
getline(cin,des);
while(des=="")
{
cout<<"Please enter the description for the expense:";
   getline(cin,des);
   }
vector<string> desc_arr;
split_string(des,desc_arr);
cout<<"Please enter the amount:";
cin>>amt;
while(amt<=0.0)
{
cout<<"Invaid amountAmount cannot be negative or string. Please try it again.\n";
cout<<"Please enter the amount:";
       cin>>amt;
}
cout<<"AMOUNT("<<amt<<") DESC("<<des<<")\n";
data newData {amt,desc_arr};
arr.push_back(newData);
}

void searchAmount(vector<data> &arr)
{
int i,j,n=arr.size();
double amt;
cout<<"Enter Amount: "
cin>>amt;
for(i=0;i<n;i++)
{
if(amt<=arr[i].amount)
{
cout<<"AMOUNT("<<arr[i].amount<<") DESC(";
printDesc(arr[i].desc);
cout<<")\n";
}
}
}

bool search(string& str,vector<string>& des)
{
int i,n=des.size();
for(i=0;i<n;i++)
{
string temp = des[i];
transform(temp.begin(),temp.end(),temp.begin(),::tolower);
if(temp==str)
return true;   
}
return false;
}

void searchString(vector<data> &arr){
cout<<"Please Enter the String Search\n";
string str;
cin>>str;
transform(str.begin(),str.end(),str.begin(),::tolower);
int i,n=arr.size();
for(i=0;i<n;i++)
{
bool found = search(str,arr[i].desc);
if(found){
cout<<"AMOUNT("<<arr[i].amount<<") DESC(";
printDesc(arr[i].desc);
cout<<")\n";
}
}
  
}

int main()
{
vector<data> arr;
while(1)
{
int opt;
cout<<"1.show all\n";
cout<<"2.spend\n";
cout<<"3.search expenses containing this string\n";
cout<<"4. search expenses with greater than or equal to this amount\n";
cout<<"5.exit\n";
cout<<"Enter your option: ";
cin>>opt;
if(opt==1)
{
showAll(arr);
}else if(opt==2)
{
spend(arr);
}else if(opt==3)
{
searchString(arr);
}else if(opt==4)
{
searchAmount(arr);
}else if(opt==5){
break;
}else{
cout<<"Invalid input\n";
}
  
}
}