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gatordh7 asked:

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Hi everyone,
 
I'm fairly new here. This is my second post. I'm just learning how to use c#, and I was wondering if someone here can help me with arrays.
 
- First, I want to declare and create an array of 5 elements. I created another class called Account, and I want the array to be of type Account.
 
- Second, I want to assign the existing objects of the class I made (Account) to the elements of the array
 
- Lastly, I'm trying to figure out how to use a for loop to call the method display from each element of the array.
 
I've literally tried everything, and I just cant seem to get this. I want my new code to get the same results as my old code, but using an array (assigning the existing objects to the arrays elements) and a for loop to call the display method from each of the arrays elements.

I know first I need to declare a constant for max size, so I started off writing this
 
public const int MAX_SIZE = 5;
 
Then, to have an array declared with elements of the Account class, I wrote this under Main
 
int[] AccountArray = new Account[5];
 

At this point I'm lost. I tried looking online and in my textbook, but I can't find any examples specific to what I'd like to accomplish. Here is my original code that I want to modify
 

static void Main(string[] args)
 
     {
 

        //int acctNo;

        Account acct = new Account(100, 2.5); // account #1 with $100 and 2.5% annual rate

 
        int choice;
      // int accountNo;
       double bal, r, amt; // balance, annual rate, amount
       int y; // number of years
       double fut; // future value

 
       Console.WriteLine("\nPlease make your selection:");
       Console.WriteLine("   0 - create an account");
       Console.WriteLine("   1 - deposit money");
       Console.WriteLine("   2 - withdraw money");
       Console.WriteLine("   3 - add monthly interest");
       Console.WriteLine("   4 - calculate future value");
       Console.WriteLine(" or -1 to finish");
 
       choice = Convert.ToInt32(Console.ReadLine());
 

        while (choice != -1)
       {
           switch (choice)
           {
               case 0: // create account

                  // acct.AccountDisplay();

                   Console.WriteLine("Enter balance:");
                   bal = Convert.ToDouble(Console.ReadLine());
                   Console.WriteLine("Enter percent of annual rate:");
                   r = Convert.ToDouble(Console.ReadLine());
                   acct = new Account(bal, r);
                   acct.display();
 
                   break;
               case 1: // deposit
                   Console.WriteLine("Enter deposit amount:");
                   amt = Convert.ToDouble(Console.ReadLine());
                   acct.deposit(amt);
                   acct.display();
                   break;
 
               case 2: // withdraw
                   Console.WriteLine("Enter withdrawal amount:");
                   amt = Convert.ToDouble(Console.ReadLine());
                   acct.withdraw(amt);
                   acct.display();
                   break;
 
               case 3: // add monthly interest
                   acct.applyMonthlyInterest();
                   acct.display();
                   break;
 
               case 4: // calculate future value
                   Console.WriteLine("Enter number of years for future value calculation:");
                   y = Convert.ToInt32(Console.ReadLine());
                   fut = acct.futureBalance(y);
                   Console.WriteLine("In {0} years you will have {1:c}." , y, fut);
 
                   break;
 
           } // end switch

           // next choice

           Console.WriteLine("\nPlease make your selection:");
           Console.WriteLine("   0 - create an account");
           Console.WriteLine("   1 - deposit money");
           Console.WriteLine("   2 - withdraw money");
           Console.WriteLine("   3 - add monthly interest");
           Console.WriteLine("   4 - calculate future value");
           Console.WriteLine(" or -1 to finish");
 
           choice = Convert.ToInt32(Console.ReadLine());
       }
       Console.WriteLine("Press any key, and good bye...");
       Console.ReadKey();
Tags: C#

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