static void Main(string[] args)
{
int darts;
int threads;
Console.WriteLine("Hello! We are going to determine Pi by throwing imaginary darts at a board.");
Console.WriteLine("Or at least, a quarter of the board.");
Console.WriteLine();
Console.Write("How many darts per thread will we throw? ");
darts = Convert.ToInt32(Console.ReadLine());
Console.Write("How many Threads will there be? ");
threads = Convert.ToInt32(Console.ReadLine());
List <Thread> myThreads = new List <Thread>();
List <FindPiThread> myObjs = new List <FindPiThread>();
for (int i = 0; i < threads; i++)
{
FindPiThread myPi = new FindPiThread(darts);
myObjs.Add(myPi);
myThreads.Add(new Thread(new ThreadStart(myPi.throwDarts)));
myThreads[i].Start();
Thread.Sleep(16);
}
for (int i = 0; i < threads; i++)
{
myThreads[i].Join();
}
int totalHits = 0;
for (int i = 0; i < threads; i++)
{
totalHits += myObjs[i].dartsLanded;
}
Console.WriteLine(totalHits);
Console.WriteLine(darts);
Console.WriteLine(threads);
//This is not clean, but it made it work. And I will take that all day
double pi = (4 * ((double)totalHits / ((double)darts * (double)threads)));
Console.WriteLine();
Console.WriteLine("My estimation of Pi is: " + pi);
}
static void Main(string[] args)
{
Console.WriteLine("Welcome to Jennifer's Amazing Pi Calculator!\nHere, you will throw darts at 1/4 of a dart board" +
" for a specified number of threads to calculate Pi.\nHow many darts would you like to throw?");
int dartTotal = Int32.Parse(Console.ReadLine());
Console.WriteLine("How many threads would you like to run?");
int threadTotal = Int32.Parse(Console.ReadLine());
//initializes threads
List <Thread> thread = new List <Thread>();
List <FindPiThread> findPiThread = new List <FindPiThread>();
Console.WriteLine("Running calculations...\n");
//sets up threads and starts them
for (int i = 0; i < threadTotal; i++)
{
FindPiThread piSimulation = new FindPiThread(dartTotal);
findPiThread.Add(piSimulation);
Thread piThread = new Thread(new ThreadStart(piSimulation.throwDarts));
thread.Add(piThread);
piThread.Start();
Thread.Sleep(16); //pauses Main() for 16ms
}
//forces Main() to wait until each thread is completed
for (int i = 0; i < thread.Count; i++)
{
thread[i].Join();
}
//adds total dart count inside circle from each thread
int dartCount = 0;
for (int i = 0; i < findPiThread.Count; i++)
{
dartCount += findPiThread[i].GetDartCount();
}
//calculates pi and prints to console
double Pi = 4.0 * (dartCount / Convert.ToDouble(dartTotal * threadTotal));
Console.WriteLine("Your Pi estimation is " + Pi + " for " + dartTotal + " darts in " + threadTotal + " threads!\n");
//makes sure console does not automatically close
Console.WriteLine("Press any key to continue...");
Console.ReadKey(true);
}
static void Main(string[] args)
{
Console.WriteLine("How many throws should be used?");
string throws = Console.ReadLine();
int decision = Convert.ToInt32(throws);
Console.WriteLine("How many threads should be run on?");
string number = Console.ReadLine();
int threads = Convert.ToInt32(number);
List <Thread> threading = new List <Thread>();
List <FindPiThread> FPT = new List <FindPiThread>();
for (int i = 0; i < threads; i++)
{
FindPiThread PiT = new FindPiThread(decision);
FPT.Add(PiT);
Thread myThread = new Thread(new ThreadStart(PiT.throwDarts));
threading.Add(myThread);
myThread.Start();
Thread.Sleep(16);
}
int totalIn = 0;
for (int k = 0; k < threads; k++)
{
threading[k].Join();
}
Console.WriteLine("Darts thrown Inside for each thread:");
for (int j = 0; j < threads; j++)
{
Console.WriteLine("Thread Number " + (j + 1) + " " + FPT[j].DThrown);
totalIn += FPT[j].DThrown;
}
Console.WriteLine((4 * ((double)totalIn / ((double)decision * (double)threads))));
Console.ReadKey();
}
static void Main(string[] args)
{
int darts, threads, hits;
Console.WriteLine("How many threads would you like to open?");
threads = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("How many darts would you like to throw in each thread?");
darts = Convert.ToInt32(Console.ReadLine());
List <Thread> threadList = new List <Thread>(threads);
List <FindPiThread> piThreads = new List <FindPiThread>(threads);
var calctime = new Stopwatch();
calctime.Start();
for (int i = 0; i < threads; i++)
{
FindPiThread piThread = new FindPiThread(darts);
piThreads.Add(piThread);
Thread thread = new Thread(new ThreadStart(piThread.throwDarts));
threadList.Add(thread);
thread.Start();
Thread.Sleep(16);
}
foreach (Thread thread in threadList)
{
thread.Join();
}
hits = 0;
foreach (FindPiThread piThread in piThreads)
{
hits += piThread.target();
}
double pi = 4 * (hits / (double)(darts * threads));
calctime.Stop();
Console.WriteLine($"Took {calctime.ElapsedMilliseconds} ms to calculate pi: {pi}\n");
Thread.Sleep(2000);
}
static void Main(string[] args)
{
int throwNum = 0; // throws to make
int threadNum = 0; // threads to run
int dartsInside = 0;
List <Thread> threads = new List <Thread>();
List <FindPiThread> piThread = new List <FindPiThread>();
Console.WriteLine("Enter how many throws to make ");
throwNum = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter how many threads ");
threadNum = Convert.ToInt32(Console.ReadLine());
for (int i = 0; i < threadNum; i++)
{
FindPiThread pi = new FindPiThread(throwNum);
piThread.Add(pi);
Thread thread = new Thread(new ThreadStart(pi.throwDarts));
threads.Add(thread);
thread.Start();
Thread.Sleep(16);
}
foreach (Thread thread in threads)
{
thread.Join();
}
foreach (FindPiThread thread in piThread)
{
dartsInside += thread.dartsLanded;
}
double total = throwNum * threadNum; // this is to help make the console output a double
Console.WriteLine(4 * (dartsInside / total));
Console.ReadKey();
}
static void Main(string[] args)
{
int dartsLanded = 0;
int totalDarts = 0;
Console.WriteLine("How many darts will be thrown each thread?");
int dartsPerThread = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("How many threads will you want?");
int threadCount = Convert.ToInt32(Console.ReadLine());
//Creating the threads
List <Thread> threadList = new List <Thread>(threadCount);
List <FindPiThread> piList = new List <FindPiThread>(threadCount);
for (int i = 0; i < threadCount; i++)
{
FindPiThread piThread = new FindPiThread(dartsPerThread);
piList.Add(piThread);
Thread myThread = new Thread(new ThreadStart(piThread.throwDarts));
threadList.Add(myThread);
myThread.Start();
Thread.Sleep(16);
}
for (int i = 0; i < threadList.Count; i++)
{
threadList[i].Join();
}
for (int i = 0; i < piList.Count; i++)
{
dartsLanded += piList[i].dartsLandedAccessor;
}
totalDarts = dartsPerThread * threadCount;
double pi = 4.0 * ((double)dartsLanded / (double)totalDarts);
Console.WriteLine("The number of darts in the target are: " + dartsLanded);
Console.WriteLine("The total number of darts were: " + totalDarts);
Console.WriteLine("Pi is: " + pi);
}
static void Main(string[] args)
{
int darts, threads, accesor = 0;
Console.WriteLine("How many throws would you like? ");
darts = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("How many threads would you like?");
threads = Convert.ToInt32(Console.ReadLine());
List <Thread> thread = new List <Thread>();
List <FindPiThread> piThreads = new List <FindPiThread>();
for (int i = 0; i < threads; i++)
{
FindPiThread pi = new FindPiThread(darts);
piThreads.Add(pi);
Thread StartThread = (new Thread(new ThreadStart(pi.throwDarts)));
thread.Add(StartThread);
StartThread.Start();
Thread.Sleep(16);
}
foreach (var j in thread)
{
j.Join();
}
foreach (var j in piThreads)
{
accesor += j.goodDarts;
}
Console.WriteLine(accesor);
decimal total = Convert.ToDecimal(darts * threads);
decimal good = Convert.ToDecimal(accesor);
decimal final = (4 * (good) / (total));
Console.WriteLine(final);
Console.ReadKey();
}
static void Main(string[] args)
{
int throws, numThreads;
int inside = 0;
List <Thread> threads = new List <Thread>();
List <FindPiThread> darts = new List <FindPiThread>();
Console.WriteLine("How many throws per thread? ");
throws = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("How many threads? ");
numThreads = Convert.ToInt32(Console.ReadLine());
for (int i = 0; i < numThreads; i++)
{
FindPiThread temp = new FindPiThread(throws);
darts.Add(temp);
threads.Add(new Thread(new ThreadStart(darts[i].throwDarts)));
threads[i].Start(); // Start each thread
Thread.Sleep(16); // Sleep main so the random numbers will have a different seed
}
for (int i = 0; i < numThreads; i++)
{
threads[i].Join(); // Wait for all threads to finish
}
for (int i = 0; i < numThreads; i++)
{
inside += darts[i].GetDarts();
}
Console.WriteLine("Best estimate for Pi: {0}", (4.0 * (inside) / (throws * numThreads)));
Console.Read();
}
