Question

Programming for business applications -

(New to programming. Just learned arrays, for/if/ifelse/else, and tryParse method. Please put comments so I am able to follow along with ease while doing this project.) C# is the language

Visual Studio 2019. Create a C# Console app (using .NET Framework)

Create a credit card console app. Each card has a Name, FICA score, and Credit Balance.

• Prompt the user for the number of cards in this group
• Declare/define 3 arrays (Names, FICA Scores, Balances) using the number entered by the user from 1 above
• Prompt the user for the credit card user's Name, FICA score, and Credit Balance
  • Read in the input
  • Use TryParse when appropriate
  • If the input is invalid, loop until you get valid input
  • Names cannot be blank
  • FICA scores must be a value from 300 to 850 inclusive
  • Credit balance can be any valid decimal number ( positive or negative are okay)
  • Once the user's information is valid, put the data into the arrays
• Display all the information to the console screen as shown below

   NAMES                      FICA          BALANCE

Ashley Bentley    700                $200.00

Berk Fields    850           $16,250.00

(the FICA scores and Balances are right aligned and the names are left aligned.)

Answer 1

Code:

Type1:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

static class Main
{
public static void Main(string[] args)
{
  

Console.WriteLine("Enter the number of cards");
int n = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Number= {0}",n);
string[] Names= new string[n];
int[] FicaScore = new int[n];
int[] Balance = new int[n];
  


  
for (int i = 0; i < n; i++)
{
Console.WriteLine("Enter user name");
string name=Console.ReadLine();
  
if(string.IsNullOrEmpty(name))
{
while (false)
{
Console.WriteLine("Please enter valid name");
Console.Beep();
}
  
}
else
{
Names[i] = name;
}

  
Console.WriteLine("Enter user FicaScore");
int score=Convert.ToInt32(Console.ReadLine());
if (score <350 || score >850)
{
Console.WriteLine("Please enter valid score between 350 and 850");
}
else
{
FicaScore[i] = score;
}

Console.WriteLine("Enter user Balance");
Balance[i] = Convert.ToInt32(Console.ReadLine());
}
  
Console.WriteLine("Name\t FicaScore\t Balance");
for(int j=0;j<n;j++)
{
  
Console.WriteLine("{0}\t {1}\t {2}\t",Names[j],FicaScore[j],Balance[j]);
}


}
  
}

Expalantion:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

static class ConsoleApp
{
public static void Main(string[] args)
{
  

Console.WriteLine("Enter the number of cards");

#asking input from number of cards and storing in n
int n = Convert.ToInt32(Console.ReadLine());

#Printing number of cards(you can ignore this if you don't want to display
Console.WriteLine("Number= {0}",n);

#initializing array with size n(i.e, n=number of cards)
string[] Names= new string[n];
int[] FicaScore = new int[n];
int[] Balance = new int[n];
  


#asking for input, and validating conditions for which we use for loop to perform operation for n number of times
for (int i = 0; i < n; i++)
{
Console.WriteLine("Enter user name");
string name=Console.ReadLine();
  

#IsNullOrEmoty is a function which accepts a string and returns true only if string not null or empty
if(string.IsNullOrEmpty(name))
{

#while loop is run untill valid name is given
while (false)
{
Console.WriteLine("Please enter valid name");
Console.Beep();
}
  
}

#if valid name is given then name is stored in array Names[i]
else
{
Names[i] = name;
}

  
Console.WriteLine("Enter user FicaScore");

#In c# input is read in string form so we are converting input to int using Convert.ToInt32
int score=Convert.ToInt32(Console.ReadLine());

#validating the score condition
if (score <350 || score >850)
{
Console.WriteLine("Please enter valid score between 350 and 850");
}

#else score is stored in array FicaScore[i]
else
{
FicaScore[i] = score;
}

Console.WriteLine("Enter user Balance");

#In c# input is read in string form so we are converting input to int using Convert.ToInt32
Balance[i] = Convert.ToInt32(Console.ReadLine());
}
  
Console.WriteLine("Name\t FicaScore\t Balance");

#Now we have to display the input, but the input is stored in arrays, so to traverse through array we take for loop
for(int j=0;j<n;j++)
{
#\t gives a tab space between each value
Console.WriteLine("{0}\t {1}\t {2}\t",Names[j],FicaScore[j],Balance[j]);
}


}
  
}

Snapshot of the input and the output obtained:

Input:

Output:

Type2:

using System;
using System.Collections.Generic;
using System.Linq;
using System.IO;

namespace ConsoleApplication
{
static class Program
{
public static void Main(string[] args)
{
int n;
Console.WriteLine("Enter the number of cards in this group");
if (Console.ReadLine()==null)
{
Console.WriteLine("Entergreater then zero");
}
else {
n = Int32.Parse(Console.ReadLine());
Method1(n);
}
  
  

}

public static void Method1(int n)
{
string[] Names = new string[n];
int[] FicaScores = new int[n];
int[] Balance = new int[n];
int input;
for (int i = 0; i < n; i++)
{
Console.WriteLine("Enter user name");
if (Console.ReadLine() == null) //Verify that input is not null
{
Console.WriteLine("Please enter user name.");
continue;
}
else
{
Names[i] = Console.ReadLine();
}

Console.WriteLine("Enter user FicaScore");
if (Int32.TryParse(Console.ReadLine(), out input) == true)
{
if (input < 350 && input > 850)
Console.WriteLine("Please enter score between 350 and 850");
}
else
{
FicaScores[i] = input;
}
Console.WriteLine("Enter user Balance");
Balance[i] = Int32.Parse((Console.ReadLine()));

Console.WriteLine("Name{i} \n FicaScore{i} \n Balance{i} \n",Names[i], FicaScores[i],
Balance[i]);
}

}
}
}