[Answer] Review Exercises #3

Copy and paste this code to answer the question on the www.dotnetstarter.blogspot.com

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

namespace Problem_3
{
    class Program
    {
        static void Main(string[] args)
        {
            string a, b, c, d;
            int A, B, C, D;
            Console.Write("Enter integer 1: ");
            a = Console.ReadLine();
            Console.Write("Enter integer 2: ");
            b = Console.ReadLine();
            Console.Write("Enter integer 3: ");
            c = Console.ReadLine();
            Console.Write("Enter integer 4: ");
            d = Console.ReadLine();
            Console.WriteLine("");

            A=Int32.Parse(a);
            B = Int32.Parse(b);
            C = Int32.Parse(c);
            D =Int32.Parse(d);

            MathUtil Math = new MathUtil(A, B, C, D);
            Console.WriteLine("Sum: "+Math.sum);
            Console.WriteLine("Product: " + Math.multi);
            Console.WriteLine("Difference: " + Math.diff);
            Console.WriteLine("Qoutient: " + Math.qout);
            Console.ReadLine();
        }
    }
    public class MathUtil
    {
        #region "fields"
        int num1;
        int num2;
        int num3;
        int num4;
        float P3, P4;
        #endregion

        #region "constructor"
        public MathUtil(int num1,int num2,int num3,int num4)
        {
            this.num1 = num1;
            this.num2 = num2;
            this.num3 = num3;
            this.num4 = num4;
            this.P3 = num3;
            this.P4 = num4;
        }
        #endregion
        #region "R-only Propertys"
        public int sum
        {  
            get
            {
                return num1+num2+num3+num4;
            }           
        }
        public int multi
        {
            get
            {
                return num1 * num2 * num3 * num4;
            }
        }
        public int diff
        {
            get
            {
                return num1 - num2;
            }
        }
        public float qout
        {
            get
            {
                
                return P3 / P4;
            }
        }
        #endregion
    }
}

[Answer] Review Exercises # 1&2

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

namespace Albores_Francis
{
 class Program
 {
     static void Main(string[] args)
     {
         Console.WriteLine("------------------Problem 1------------------");
         string a, b, c, d;
         int sum, prod, diff, A, B, C, D;
         float qout;
         Console.Write("Enter integer 1: ");
   a = Console.ReadLine();
   Console.WriteLine("");
         Console.Write("Enter integer 2: ");
   b = Console.ReadLine();
   Console.WriteLine("");
         Console.Write("Enter integer 3: ");
   c = Console.ReadLine();
   Console.WriteLine("");
         Console.Write("Enter integer 4: ");
   d = Console.ReadLine();
   Console.WriteLine("");
         Console.WriteLine("");
   Console.WriteLine("");
         A = Int32.Parse(a);
         B = Int32.Parse(b);
         C = Int32.Parse(c);
         D = Int32.Parse(d);
         sum = A + B + C + D;
         prod = A * B * C * D;
         diff = A - B;
         qout = 1/2;
         Console.WriteLine("Sum: " + sum);
   Console.WriteLine("");
         Console.WriteLine("Product: " + prod);
   Console.WriteLine("");
         Console.WriteLine("Difference (1 and 2): " + diff);
   Console.WriteLine("");
         Console.WriteLine("Quotient (3 and 4): " + qout);
   Console.WriteLine("");

         Console.WriteLine("------------------Problem 2------------------");
         string numofStud_S, grade_S, persentPS, persentFS;
         int numofStud, grade, passed = 0, failed = 0;
         float persentP, persentF;
         Console.Write("Enter number of students to process: ");
         numofStud_S = Console.ReadLine();
         numofStud = Int32.Parse(numofStud_S);
    bool invalid = false;
   for (int x = 0; x < numofStud; x++)                                       
          {
   do                              
   {                                        
    Console.Write("Enter grade for student {0} 60-100: ", x + 1);                      
    grade_S = Console.ReadLine();                      
    grade = Int32.Parse(grade_S);                      
    if (grade <> 100)
                    {
                         Console.WriteLine("Error: Grade must be within 60 to 100");
                         invalid = true;
                    }
                    else
                        invalid = false;
               } while (invalid == true);
               if (grade >= 75 && grade <= 100)
    passed++;                 
   else                 
   {                      
    failed++;                   
   }              
  }              
  persentPS = passed.ToString();         
  persentFS = failed.ToString();              
  Console.WriteLine("");              
  Console.WriteLine("Total no. of students: "+numofStud);              
  Console.WriteLine("No. of students who passed: " + passed);              
  Console.WriteLine("No. of students who failed: " + failed);   
  Console.WriteLine("");              
  persentP = (float.Parse(persentPS) / float.Parse(numofStud_S) * 100);              
  persentF = (float.Parse(persentFS)/float.Parse(numofStud_S)*100);               
  Console.WriteLine("Percentage of students who passed: "+persentP+"%");              
  Console.WriteLine("Percentage of students who failed: " + persentF + "%");              
  Console.ReadLine();        
 }      
   }   }

[Answer] Problem #3 EXAM dotnetstarter.blogspot.com

Copy and paste this code to answer the question. for the question, just click the title.

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

namespace Exam01
{
   class Program
   {
       static void Main(string[] args)
       {
           Book book1 = new Book();
           book1.Type = BookType.Science;
           book1.Pages = 150;
           book1.Title = "Practical Science";
           book1.Author = "Professor X1";    // Displays an error since the author name has a digit        
           Console.WriteLine(book1.Author);  // Displays 'Unknown' since the author field is blank
           book1.Author = "Professor X";
           Console.WriteLine(book1);  // Display's 'Type: Science, Title: Practical Science, Author: Professor X, Pages: 150'

           Book book2 = new Book(BookType.History, "World History", "Magellan");

           book2.Borrow();  // Sets the book status to borrowed
           Console.WriteLine(book2.IsBorrowed);  // Displays true
           book2.Borrow();  // Displays an error since book is already borrowed

           book2.Return();  // Sets the book status to available
           Console.WriteLine(book2.IsBorrowed);  // Displays false
           book2.Return();  // Displays an error since book is already returned

           Console.ReadLine();
       }
   }
   public enum BookType
   {
       Undefined,
       Fiction,
       NonFiction,
       History,
       Science
   }

   public enum StatusType
   {
       Undefined,
       Available,
       Borrowed
   }

   public class Book
   {
       #region "fields"
       private int _pages;
       private string _title;
       private string _author;
       private BookType _bookType;
       private StatusType _statusType;
       #endregion
       #region "Constructors"
       public Book(BookType bookType, string title, string author, int pages)
       {
           _pages = pages;
           _title = title;
           _author = author;
           _bookType = bookType;
           _statusType = StatusType.Available;
       }
       public Book(BookType bookType, string title, string author)
       { }
       public Book(string title,string author)
       { }
       public Book()
       { }
       #endregion
       #region "Propertys"
       public string Title
       {
           get{return _title;}
           set{_title = value;}
       }
       public string Author
       {
           get
           {
               if (_author == "")
               {
                   return "'Unknown' since the author field is blank";
               }
               else
                   return _author;
           }
           set
           {
               if (value.Contains("1") || value.Contains("2") || value.Contains("3") || value.Contains("4") || value.Contains("5") || value.Contains("6") || value.Contains("7") || value.Contains("8") || value.Contains("9") || value.Contains("0"))
               {
                   Console.WriteLine("error since the author name has a digit");
                   _author = "";
               }
               else
                   _author = value;
           }
       }
       public int Pages
       {
           get { return _pages; }
           set { _pages = value; }
       }
       public BookType Type
       {
           get { return _bookType; }
           set { _bookType = value; }
       }
       public bool IsBorrowed
       {
           get
           {
               if (_statusType == StatusType.Borrowed)
                   return true;
               else
                   return false;
           }
       }

       #endregion

       #region "methods"
       public void Borrow()
       {
           if (IsBorrowed == true)
               Console.WriteLine("error since book is already borrowed");
           else
               _statusType = StatusType.Borrowed;
       }
       public void Return()
       {
           if(_statusType==StatusType.Available)
               Console.WriteLine("error since book is already returned");
           else
               _statusType = StatusType.Available;
       }
       #endregion
       public override string ToString()
       {
           return "Type: "+_bookType+", Title: "+_title+", Author: "+_author+", Pages: "+_pages; 
          
       }
   }
}

[Answer]Problem #2 EXAM dotnetstarter.blogspot.com

using System;
using System.Collections.Generic;
using System.Text;
namespace practice
{
    class Program
    {
        static void Main(string[] args)
        {           
            string choice;
            double C;
            double a = 0.55555555555555555555555555555556;
            double F;
            bool repeat = false;
            do
            {
                Console.WriteLine("Menu:");
                Console.WriteLine("[C] Convert from Fahrenheit to Celsius");
                Console.WriteLine("[F] Convert from Celsius to Fahrenheit");
                Console.WriteLine("[X] Exit application");
                Console.Write("Choice: "); repeat = false;
                choice = Console.ReadLine();
                switch (choice)
                {
                    case "c":
                    case "C":
                        {
                            Console.Write("Enter temperature in Fahrenheit: ");
                            choice = Console.ReadLine();
                            if (choice == "")
                            {
                                repeat = true; break;
                            }
                            else
                            {
                                F = double.Parse(choice);
                                C = ((F - 32) * a);
                                Console.WriteLine("Temperature in Celcius: " + C);
                                repeat = true; break;
                            }
                        }
                    case "f":
                    case "F":
                        {
                            Console.Write("Enter temperature in Celsius: ");
                            choice = Console.ReadLine();
                            if (choice == "")
                            {
                                repeat = true; break;
                            }
                            else
                            {
                                C = double.Parse(choice);
                                F = (1.8) * C + 32;
                                Console.WriteLine("Temperature in Fahrenheit: " + F);
                                repeat = true; break;
                            }
                        }
                    case "x":
                    case "X":
                        {
                            Console.WriteLine("BABAY!!!"); break;
                        }
                    default:
                        {
                            Console.WriteLine("Error"); Console.ReadLine();
                            repeat = true; break;
                        }
                }
            } while (repeat == true);
        }
    }
}

ANSWER!!! Exam 1 UIC SysProg

This is a last year's post. I did just repost it because i forgot to publish it. It was just inside my draft. hahaha.....

using System;
using System.Collections.Generic;
using System.Text;
namespace practice
{
class Program
{
static void Main(string[] args)
{
string[] num = new string[3];
float[] numf = new float[3];
float index = 0;
int j;
for (int x = 0; x <>
{
Console.Write("Enter float {0}: ", x + 1);
num[x] = Console.ReadLine();
numf[x] = float.Parse(num[x]);
}
Console.WriteLine("");
Console.WriteLine("Order:");
for (int i = 0; i <>
{
index = numf[i];
j = i;
while ((j > 0) && (numf[j - 1] > index))
{
numf[j] = numf[j - 1];
j = j - 1;

}
numf[j] = index;

}
for (int x = 0; x <>
{
Console.WriteLine(numf[x]);
}
Console.ReadLine();
}
}
}

Answer Exam 1 UIC SysProg

using System;
using System.Collections.Generic;
using System.Text;
namespace practice
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] num = new string[3];
            float[] numf = new float[3];
            float index = 0;
            int j;
            for (int x = 0; x <>
            {
                Console.Write("Enter float {0}: ", x + 1);
                num[x] = Console.ReadLine();
                numf[x] = float.Parse(num[x]);
            }
            Console.WriteLine("");
            Console.WriteLine("Order:");
            for (int i = 0; i <>
            {
                index = numf[i];
                j = i;
                while ((j > 0) && (numf[j - 1] > index))
                {
                    numf[j] = numf[j - 1];
                    j = j - 1;

                }
                numf[j] = index;
            }
            for (int x = 0; x <>
            {
                Console.WriteLine(numf[x]);
            }
            Console.ReadLine();
        }
    }
}