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POTransitioning from C# to C++, good references?
 

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  1. POTransitioning from C# to C++, good references?
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    <p>I've just completed my second OOP class, and both my first and second classes were taught in C#, but for the rest of my programming classes, we will be working in C++. Specifically, we will be using the visual C++ compliler. The problem is, we are required to learn the basics of C++ ourself, with no transition from our professor. So, I was wondering if any of you know of some good resources I could go to to learn about C++, coming from a c# background?</p> <p>I ask this because I've noticed many diffferences between C# and C++, such as declaring your <code>main</code> method int, and returning a 0, and that your main method is not always contained in a class. Also, I've noticed that all of your classes have to be written before your main method, I heard that this is because VC++ complies from the top down?</p> <p>Anyway, do you know of some good references?</p> <p>Thanks! (Also, is there somewhere out there where I can compare simple programs I've written in C#, to see what they would look like in C++, such as the one I wrote that is below)?</p> <pre><code>using System; using System.IO; using System.Text; // for stringbuilder class Driver { const int ARRAY_SIZE = 10; static void Main() { PrintStudentHeader(); // displays my student information header Console.WriteLine("FluffShuffle Electronics Payroll Calculator\n"); Console.WriteLine("Please enter the path to the file, either relative to your current location, or the whole file path\n"); int i = 0; Console.Write("Please enter the path to the file: "); string filePath = Console.ReadLine(); StreamReader employeeDataReader = new StreamReader(filePath); Employee[] employeeInfo = new Employee[ARRAY_SIZE]; Employee worker; while ((worker = Employee.ReadFromFile(employeeDataReader)) != null) { employeeInfo[i] = worker; i++; } for (int j = 0; j &lt; i; j++) { employeeInfo[j].Print(j); } Console.ReadLine(); }//End Main() class Employee { const int TIME_AND_A_HALF_MARKER = 40; const double FEDERAL_INCOME_TAX_PERCENTAGE = .20; const double STATE_INCOME_TAX_PERCENTAGE = .075; const double TIME_AND_A_HALF_PREMIUM = 0.5; private int employeeNumber; private string employeeName; private string employeeStreetAddress; private double employeeHourlyWage; private int employeeHoursWorked; private double federalTaxDeduction; private double stateTaxDeduction; private double grossPay; private double netPay; // -------------- Constructors ---------------- public Employee() : this(0, "", "", 0.0, 0) { } public Employee(int a, string b, string c, double d, int e) { employeeNumber = a; employeeName = b; employeeStreetAddress = c; employeeHourlyWage = d; employeeHoursWorked = e; grossPay = employeeHourlyWage * employeeHoursWorked; if (employeeHoursWorked &gt; TIME_AND_A_HALF_MARKER) grossPay += (((employeeHoursWorked - TIME_AND_A_HALF_MARKER) * employeeHourlyWage) * TIME_AND_A_HALF_PREMIUM); stateTaxDeduction = grossPay * STATE_INCOME_TAX_PERCENTAGE; federalTaxDeduction = grossPay * FEDERAL_INCOME_TAX_PERCENTAGE; } // --------------- Setters ----------------- /// &lt;summary&gt; /// The SetEmployeeNumber method /// sets the employee number to the given integer param /// &lt;/summary&gt; /// &lt;param name="n"&gt;an integer&lt;/param&gt; public void SetEmployeeNumber(int n) { employeeNumber = n; } /// &lt;summary&gt; /// The SetEmployeeName method /// sets the employee name to the given string param /// &lt;/summary&gt; /// &lt;param name="s"&gt;a string&lt;/param&gt; public void SetEmployeeName(string s) { employeeName = s; } /// &lt;summary&gt; /// The SetEmployeeStreetAddress method /// sets the employee street address to the given param string /// &lt;/summary&gt; /// &lt;param name="s"&gt;a string&lt;/param&gt; public void SetEmployeeStreetAddress(string s) { employeeStreetAddress = s; } /// &lt;summary&gt; /// The SetEmployeeHourlyWage method /// sets the employee hourly wage to the given double param /// &lt;/summary&gt; /// &lt;param name="d"&gt;a double value&lt;/param&gt; public void SetEmployeeHourlyWage(double d) { employeeHourlyWage = d; } /// &lt;summary&gt; /// The SetEmployeeHoursWorked method /// sets the employee hours worked to a given int param /// &lt;/summary&gt; /// &lt;param name="n"&gt;an integer&lt;/param&gt; public void SetEmployeeHoursWorked(int n) { employeeHoursWorked = n; } // -------------- Getters -------------- /// &lt;summary&gt; /// The GetEmployeeNumber method /// gets the employee number of the currnt employee object /// &lt;/summary&gt; /// &lt;returns&gt;the int value, employeeNumber&lt;/returns&gt; public int GetEmployeeNumber() { return employeeNumber; } /// &lt;summary&gt; /// The GetEmployeeName method /// gets the name of the current employee object /// &lt;/summary&gt; /// &lt;returns&gt;the string, employeeName&lt;/returns&gt; public string GetEmployeeName() { return employeeName; } /// &lt;summary&gt; /// The GetEmployeeStreetAddress method /// gets the street address of the current employee object /// &lt;/summary&gt; /// &lt;returns&gt;employeeStreetAddress, a string&lt;/returns&gt; public string GetEmployeeStreetAddress() { return employeeStreetAddress; } /// &lt;summary&gt; /// The GetEmployeeHourlyWage method /// gets the value of the hourly wage for the current employee object /// &lt;/summary&gt; /// &lt;returns&gt;employeeHourlyWage, a double&lt;/returns&gt; public double GetEmployeeHourlyWage() { return employeeHourlyWage; } /// &lt;summary&gt; /// The GetEmployeeHoursWorked method /// gets the hours worked for the week of the current employee object /// &lt;/summary&gt; /// &lt;returns&gt;employeeHoursWorked, as an int&lt;/returns&gt; public int GetEmployeeHoursWorked() { return employeeHoursWorked; } // End --- Getter/Setter methods /// &lt;summary&gt; /// The CalcSalary method /// calculates the net pay of the current employee object /// &lt;/summary&gt; /// &lt;returns&gt;netPay, a double&lt;/returns&gt; private double CalcSalary() { netPay = grossPay - stateTaxDeduction - federalTaxDeduction; return netPay; } /// &lt;summary&gt; /// The ReadFromFile method /// reads in the data from a file using a given a streamreader object /// &lt;/summary&gt; /// &lt;param name="r"&gt;a streamreader object&lt;/param&gt; /// &lt;returns&gt;an Employee object&lt;/returns&gt; public static Employee ReadFromFile(StreamReader r) { string line = r.ReadLine(); if (line == null) return null; int empNumber = int.Parse(line); string empName = r.ReadLine(); string empAddress = r.ReadLine(); string[] splitWageHour = r.ReadLine().Split(); double empWage = double.Parse(splitWageHour[0]); int empHours = int.Parse(splitWageHour[1]); return new Employee(empNumber, empName, empAddress, empWage, empHours); } /// &lt;summary&gt; /// The Print method /// prints out all of the information for the current employee object, uses string formatting /// &lt;/summary&gt; /// &lt;param name="checkNum"&gt;The number of the FluffShuffle check&lt;/param&gt; public void Print(int checkNum) { string formatStr = "| {0,-45}|"; Console.WriteLine("\n\n+----------------------------------------------+"); Console.WriteLine(formatStr, "FluffShuffle Electronics"); Console.WriteLine(formatStr, string.Format("Check Number: 231{0}", checkNum)); Console.WriteLine(formatStr, string.Format("Pay To The Order Of: {0}", employeeName)); Console.WriteLine(formatStr, employeeStreetAddress); Console.WriteLine(formatStr, string.Format("In The Amount of {0:c2}", CalcSalary())); Console.WriteLine("+----------------------------------------------+"); Console.Write(this.ToString()); Console.WriteLine("+----------------------------------------------+"); } /// &lt;summary&gt; /// The ToString method /// is an override of the ToString method, it builds a string /// using string formatting, and returns the built string. It particularly builds a string containing /// all of the info for the pay stub of a sample employee check /// &lt;/summary&gt; /// &lt;returns&gt;A string&lt;/returns&gt; public override string ToString() { StringBuilder printer = new StringBuilder(); string formatStr = "| {0,-45}|\n"; printer.AppendFormat(formatStr,string.Format("Employee Number: {0}", employeeNumber)); printer.AppendFormat(formatStr,string.Format("Address: {0}", employeeStreetAddress)); printer.AppendFormat(formatStr,string.Format("Hours Worked: {0}", employeeHoursWorked)); printer.AppendFormat(formatStr,string.Format("Gross Pay: {0:c2}", grossPay)); printer.AppendFormat(formatStr,string.Format("Federal Tax Deduction: {0:c2}", federalTaxDeduction)); printer.AppendFormat(formatStr,string.Format("State Tax Deduction: {0:c2}", stateTaxDeduction)); printer.AppendFormat(formatStr,string.Format("Net Pay: {0:c2}", CalcSalary())); return printer.ToString(); } } </code></pre>
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