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Articles Home » C# » Dining Philosopher Problem in C#

Dining Philosopher Problem in C#

This C# Program Illustrates Dining Philosopher Problem. Here the Dining philosopher problem is solved and the results are displayed.

Here is source code of the C# Program to Illustrate Dining Philosopher Problem. The C# program is successfully compiled and executed with Microsoft Visual Studio. The program output is also shown below.

```
/*
```

 * C# Program to Illustrate Dining Philosopher Problem

```
 */
```
```
using System;
```
```
using System.Threading;
```
```
class philofork
```
```
{
```
```
    bool[] fork = new bool[5]; 
```

    public void Get(int left, int right)

```
    {
```
```
        lock (this)
```
```
        {
```

            while (fork[left] || fork[right]) Monitor.Wait(this);

            fork[left] = true; fork[right] = true;

```
        }
```
```
    }
```

    public void Put(int left, int right)

```
    {
```
```
        lock (this)
```
```
        {
```

            fork[left] = false; fork[right] = false;

```
            Monitor.PulseAll(this);
```
```
        }
```
```
    }
```
```
}
```
```
class Philo
```
```
{
```
```
    int n;           
```
```
    int thinkDelay;  
```
```
    int eatDelay;    
```
```
    int left, right; 
```
```
    philofork philofork;     
```

    public Philo(int n, int thinkDelay, int eatDelay, philofork philofork)

```
    {
```
```
        this.n = n;
```

        this.thinkDelay = thinkDelay; this.eatDelay = eatDelay;

```
        this.philofork = philofork;
```
```
        left = n == 0 ? 4 : n - 1;
```
```
        right = (n + 1) % 5;
```

        new Thread(new ThreadStart(Run)).Start();

```
    }
```
```
    public void Run()
```
```
    {
```
```
        for (; ; )
```
```
        {
```
```
            try
```
```
            {
```

                Thread.Sleep(thinkDelay);

                philofork.Get(left, right);

                Console.WriteLine("Philosopher " + n + " is eating...");

```
                Console.ReadLine();
```
```
                Thread.Sleep(eatDelay);
```

                philofork.Put(left, right);

```
            }
```
```
            catch
```
```
            {
```
```
                return;
```
```
            }
```
```
        }
```
```
    }
```
```
 
```
```
}
```
```
public class philopblm
```
```
{
```
```
    public static void Main()
```
```
    {
```

        philofork philofork = new philofork();

        new Philo(0, 10, 50, philofork);

        new Philo(1, 20, 40, philofork);

        new Philo(2, 30, 30, philofork);

        new Philo(3, 40, 20, philofork);

        new Philo(4, 50, 10, philofork);

```
    }
```
```
}
```

Here is the output of the C# Program:

Philosopher 0 is eating...
Philosopher 1 is eating...
Philosopher 2 is eating...
Philosopher 3 is eating...
Philosopher 4 is eating...
Philosopher 0 is eating...
Philosopher 1 is eating...
Philosopher 2 is eating...
Philosopher 3 is eating... 
Philosopher 4 is eating...
Philosopher 0 is eating...

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Dining Philosopher Problem in C#

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