Application of Random Class: CRAPS

CRAP is a dice game played in casino and back alleys throughout the world.

A Game of Chance CRAP

Rules of the game:

You roll two dice. Each die has a six faces, which contain one, two, three, four, five, six spots, respectively. After the dice have come to rest, the some of spots n the two upward face is calculated.

if some is 7 or 11 on the first throw, you win.

if some is  2,3 or 12 on the first throw (called CRAPS ) you lose (i.e the house wins).

if some is 4,5,6,8,9 or 10 on the first throw, that sum become "your point".

         To win you must continues rolling your dice until you "make your point" (i.e roll that same value).

You lose by rolling a 7 before making your point.

Source code:

// class crap.cs 

1. using System;
2. public class CRAP
3. {
4. //Creating a random number generator for use in methd RollDice
5. private Random randomNumber = new Random();
7. private enum Status //ENUM WITH CONSTATNT THAT REPRESENT GAME STATUS
8. {
9. CONTINUE,
10. WON,
11. LOST
12. }
14. private enum DiceNames
15. {
16. SNAKE_EYES = 2,
17. TREY = 3,
18. SEVEN = 7,
19. YO_LEVEN = 11,
20. BOX_CARS = 12
21. }
23. // PLAY ONE GAME OF CRAP
24. public void Play()
25. {
26. Status gameStatus = Status.CONTINUE;
27. int myPoint = 0;
28. int sumOfDice = RollDice();
29. switch ((DiceNames)sumOfDice)
30. {
31. case DiceNames.SEVEN:
32. case DiceNames.YO_LEVEN:
33. gameStatus = Status.WON;
34. break;
36. case DiceNames.BOX_CARS:
37. case DiceNames.SNAKE_EYES:
38. case DiceNames.TREY:
39. gameStatus = Status.LOST;
40. break;
42. default:
43. gameStatus= Status.CONTINUE;
44. myPoint = sumOfDice;
45. Console.WriteLine("Point is {0}", myPoint);
46. break;
47. }
49. while (gameStatus == Status.CONTINUE)
50. {
51. sumOfDice = RollDice(); // roll dice again
53. if (sumOfDice == myPoint)
54. gameStatus = Status.WON;
56. if (sumOfDice == (int)DiceNames.SEVEN)
57. gameStatus = Status.LOST;
58. }// end of while method
60. // Display won or loss
61. if (gameStatus == Status.WON)
62. Console.WriteLine("Palyer Wins");
63. else
64. Console.WriteLine("Player Losses");
65. }//end of method Play
67. public int RollDice()
68. {
69. int die1 = randomNumber.Next(1, 7);
70. int die2 = randomNumber.Next(1, 7);
71. int sum = die1 + die2;
72. //Display result of this roll
73. Console.WriteLine("Player rolled {0} + {1} = {2}", die1, die2, sum);
74. return sum;
75. }// End method roll dice
76. }

//class CrapTest.cs 

1. using System;
2. class CrapTets
3. {
4. public static void Main()
5. {
6. CRAP game = new CRAP();
7. game.Play();
8. Console.ReadLine();
10. }
11. }

Screen Shots of Output: 

Fig 1: Snapshot of output

Fig 2: Snapshot of output

Fig 3: Snapshot of output

Fig 4: Snapshot of output

Introducing random class in c-sharp

Case Study: Rolling a six dice problem.

In this problem the application simulate 20 rolls of a six sided dice and display the value of each roll. So, in this problem we use

random class : the object of class random can produce random byte,int,double values

Scaling factor:

 int randomValue = random.Next(6);

In the above statement we use randomvalue of type integer random is the object of class "Random;", Next is the method of class random

The above statement returns value 0,1,2,3,4,5. The Argument is called Scaling factor- Represent the no. of that Next should produce (in this case 0,1,2,3,4 and 5)

This manipulation is called scaling the range of value produce by Random method Next.

Shifting factor

Suppose we want to simulate six die and that has the numbers 1-6 on its faces, not 0-5. Scaling the range of value is not enough. So we shift the range of numbers we produced. We could do this by adding shifting value – in this case 1- to the result of method next, as in

         int randomValue =1+ random.Next(6);

OR

int randomValue = random.Next(1,6);

Here we have two example of class random.

Example one: Rolling a six sided die twenty times and note the result every time

Source Code

using System;
public class RandomIntegers
{
public static void Main()
{
Random random=new Random(); // create object of Random Method
int face; //store each random integer

for(int counter=1;counter<=20;counter++)
{
face=random.Next(1,7); //shifting and scaling
Console.Write("{0} ",face); //display generated value
if(counter%5==0)
Console.WriteLine();
}

}
}

Screenshots of Output:

Fig 1: Snapshot of Dice game

Example 2:  Rolling a dice 6000 time and observe the frequency of outcomes.

Source Code: 

using System;
public class RollDie
{
public static void Main()
{
Random random = new Random();

int frequency1=0; //Count of 1's rolled
int frequency2=0; //Count of 2's rolled
int frequency3=0; //Count of 3's rolled
int frequency4=0; //Count of 4's rolled
int frequency5=0; //Count of 5's rolled
int frequency6=0; //Count of 6's rolled

int face;  //store most recently rolled value

for(int roll=1;roll<=6000;roll++)
{
face=random.Next(1,7); //number from 1 to 6

switch(face)
{
case 1:
frequency1++;
break;

case 2:
frequency2++;
break;

case 3:
frequency3++;
break;

case 4:
frequency4++;
break;

case 5:
frequency5++;
break;

case 6:
frequency6++;
break;
}
}

Console.WriteLine("Face\tFrequency" ); // output headers

Console.WriteLine("1\t{0}\n2\t{1}\n3\t{2}\n4\t{3}\n5\t{4}\n6\t{5}\n",
frequency1, frequency2, frequency3, frequency4, frequency5, frequency6);
}
}

Screenshot of Final Output: 

Fig 2: Frequency of dice faces

Number Pattern in C# - 14 (FLOYED TRIANGLE)

Qus: WAP  To print Floyed triangle in c-sharp.

Fig: Screenshot of Output

using System;

class FloyedTriangle

{

public static void Main()

{

int i,row,j,k=1;

Console.Write("Enter the no. of row of Floyd's triangle: ");

row=Convert.ToInt32(Console.ReadLine());

for(i=1;i<=row;i++)

{

for(j=1;j<=i;j++,k++)

Console.Write("{0} ",k);

Console.WriteLine();

}

}

}

Number Pattern in C# - 13

Fig: Screenshot of output

using System;
class PatternTest
{
public static void Main()
{
int j,k,row,r=1;

Console.Write("Enter the no. of row: ");
row=Convert.ToInt32(Console.ReadLine());

for(;row>=1;row--,r++)
{
for(j=r;j>=1;j--)
Console.Write(" ");

for(j=1;j<=row;j++)
Console.Write(j);

for(k=row-1;k>=1;k--)
Console.Write(k);
Console.WriteLine();
}
}
}

Number Pattern in C# - 12

Fig: Screenshot of Output

using System;
class PatternTest
{
public static void Main()
{
int i,j,k,row;

Console.Write("Enter the no. of row: ");
row=Convert.ToInt32(Console.ReadLine());

for(i=1;i<row;i++)
{
for(j=row-i;j>=1;j--)
Console.Write(" ");

for(j=1;j<=i;j++)
Console.Write(j);

for(k=i-1;k>=1;k--)
Console.Write(k);
Console.WriteLine();
}
}
}

Number Pattern in C# - 11

Fig: Screenshot of Output

using System;
class PatternTest
{
public static void Main()
{
int j,row,r=1;

Console.Write("Enter the no. of row: ");
row=Convert.ToInt32(Console.ReadLine());
//int temp=row;

for(;row>=1;row--,r++)
{
for(j=r;j>1;j--)
Console.Write(" ");

for(j=1;j<=row;j++)
Console.Write(j);
Console.WriteLine();


}
}
}

Number Pattern in C# - 10

Fig: Screenshot of Output

using System;
class patternProgramming
{
public static void Main()
{
int i,j,row;

Console.Write("Enter the no. of row: ");
row=Convert.ToInt32(Console.ReadLine());

for(i=row;i>=1;i--)
{
for(j=1;j<=i;j++)
Console.Write(j);
Console.WriteLine();
}
}
}

Number Pattern in C# - 9

Fig: Screenshot of Output

using System;

class PatternProgramming
{
public static void Main()
{
int i,j,row;

Console.Write("Enter the no. of row yu want to print: ");
row=Convert.ToInt32(Console.ReadLine());

for(i=1;i<=row;i++)
{
for(j=i;j>=1;j--)
Console.Write(j);
Console.WriteLine();
}


}
}

Number Pattern in C# - 8

Fig: Screenshot of Output

using System;
class PatternProgramming
{
public static void Main()
{
int i,row;
Console.Write("Enter the no. of row you want to enter: ");
row=Convert.ToInt32(Console.ReadLine());

for(;row>=1;row--)
{
for(i=row;i>=1;i--)
Console.Write(i);
Console.WriteLine();
}
}
}

Number Pattern in C# - 7

Fig: Screenshot of Output

using System;
class PatternProgramming
{
public static void Main()
{
int i,j,row;
Console.Write("Enter the no. of row: ");
row=Convert.ToInt32(Console.ReadLine());

for(i=1;i<=row;i++)
{
for(j=row-i;j>=1;j--)
Console.Write(" ");

for(j=1;j<=i;j++)
Console.Write(j);
Console.WriteLine();
}
}
}

Number Pattern in C# - 6

Fig: Screenshot of output

using System;
class PatternProgramming
{
public static void Main()
{
int i,row;
Console.Write("Enter the no. of row: ");
row=Convert.ToInt32(Console.ReadLine());

for(int j=1;j<=row;j++)
{
for(i=1;i<=j;i++)
Console.Write(i);
Console.WriteLine();
}
}
}

Number Pattern in C# - 5

Fig: Snapshots of Output

using System;
class PatternProgramming
{
public static void Main()
{
int i,row;
Console.Write("Enter the no. of row: ");
row=Convert.ToInt32(Console.ReadLine());

for(;row>=1;row--)
{
for(i=1;i<=row;i++)
Console.Write(i);
Console.WriteLine();
}
}
}

Number Pattern in C# - 4

using System;
class PatternProgramming
{
public static void Main()
{
int i,j,row;

Console.Write("Enter the no. of rows you want to print: ");
row=Convert.ToInt32(Console.ReadLine());

for(i=1;i<=row;i++)
{
for(j=1;j<=row;j++)
Console.Write(" ");

for(j=1;j<=row;j++)
Console.Write(i);
Console.WriteLine();
}
}
}

Fig: Snapshot of Output

Number Pattern in C# - 3

using System;
class PatternProgramming
{
public static void Main()
{
int i,j,row;

Console.Write("Enter the no. of line you have to print: ");
row=Convert.ToInt32(Console.ReadLine());

for(j=1;j<=row;j++)
{
for(i=1;i<=row;i++)
Console.Write(" ");

for(i=row;i>=1;i--)
Console.Write(i);
Console.WriteLine();
}
}
}

Fig: Snapshots of Output

Number Pattern in C# - 2

using System;
class PatternProgramming
{
public static void Main()
{
int i,j,row;

Console.Write("Enter the no. of line you have to print: ");
row=Convert.ToInt32(Console.ReadLine());

for(j=1;j<=row;j++)
{
for(i=1;i<=row;i++)
Console.Write(" ");

for(i=1;i<=row;i++)
Console.Write(i);
Console.WriteLine();
}
}
}

Fig: Snapshot of Output

Number Pattern in C# - 1

using System;
class PatternProgramming
{
public static void Main()
{
int i,row;

Console.Write("Enter the no. of line you have to print: ");
row=Convert.ToInt32(Console.ReadLine());

for(;row>=1; row--)
{
for(i=1;i<=row;i++)
Console.Write(i);
Console.WriteLine();
}
}
}

Fig: Snapshot of Output

Star Pattern in C# - 6

using System;
class PatternProgramming
{
public static void Main()
{
int row,i,j,k;

Console.Write("Enter the no. of row you wantt to print: ");
row=Convert.ToInt32(Console.ReadLine());

for(i=1;i<=row;i++)
{

for(j=row-i;j>=1;j--)
Console.Write(" ");

for(k=1;k<=i;k++)
Console.Write("@");
Console.WriteLine();
}
}
}

Fig: Snapshot of Output

Star Pattern in C# - 5

using System;
class Pattern_star
{
public static void Main()
{
int i,row;
Console.Write("Enter the no. of row you want to print: ");
row=Convert.ToInt32(Console.ReadLine());

for(i=1;i<=row;i++)
{
for(int j=1;j<=i;j++)
Console.Write("#");
Console.WriteLine();

}
}
}

Fig: Snapshots of output

Star Pattern in C# - 4

Fig: Snapshot of Output

using System;
class Patters_test
{
public static void Main()
{
int row,i;
Console.Write("Enter the no. of row you have to print: ");
row=Convert.ToInt32(Console.ReadLine());

for(;row>0;row--)
{
for(i=0;i<row;i++)

Console.Write("#");
Console.WriteLine();
}
}
}

Star Pattern in C# - 3

Fig 1: Snapshots of output

using System;
class Pattern_Test3
{
public static void Main()
{
int i=1;
int row;
int j;

Console.Write("Enter no. of row you have to print: ");
row=Convert.ToInt32(Console.ReadLine());

for(;row>0;row--,i++)
{
for(j=i;j>1;j--)
Console.Write(" ");

for(int c=0;c<row;c++)
Console.Write("*");
Console.WriteLine();
}
}
}

Star Pattern in C# - 2

Fig 1: Pattern Programming Output

using System;

class Pattern_Star
{
public static void Main()
{
int i,j,row;

Console.WriteLine("Enter the no. of row you have to print");
row=Convert.ToInt32(Console.ReadLine());

for(i=0;i<row;i++)
{
for(j=0;j<row;j++)
Console.Write("@");
Console.WriteLine();
}
}
}