Implement the Dining Philosophers problem (described on pages 167-170 in the textbook (chapter 2.5.1)). Create a Graphical User Interface - showing which philosopher is eating, and which is waiting/thinking at any given time. Show the forks. Use Java programming language for this project.

Provided in the explanation section

Explanation:

class philosopher extends Thread

{

public void run()

{

diningps.count++;

philosopher(diningps.count);

}

public void philosopher(int i)

{

take_forks(i);

System.out.println(i+"philosopher Eating");

put_forks(i);

}

public void take_forks(int i)

{

while(diningps.mutex<=0)

{

System.out.println(i+"philosopher has to be wait while other philosopher in testing");

}

diningps.state[i]="HUNGRY";

test(i);

diningps.mutex=1;

while(diningps.S[i]<=0)

{

System.out.println(i+"philosopher has to be wait while his left or right side philosopher eating.");

}

}

public void put_forks(int i)

{

while(diningps.mutex<=0)

{

System.out.println(i+"philosopher has to be wait while other philosopher in testing");

}

diningps.state[i]="THINK";

test((i+4)%5);

test((i+1)%5);

diningps.mutex=1;

}

public void test(int i)

{

if(diningps.state[i]=="HUNGRY" && diningps.state[(i+4)%5]!="EAT" && diningps.state[(i+1)%5]!="EAT")

{

diningps.state[i]="EAT";

diningps.S[i]=1;

}

}

}

class diningps

{

static int mutex=1;

static int S[]={0,0,0,0,0};

static String state[]={"THINK","THINK","THINK","THINK","THINK"};

static int count=-1;

public static void main(String ar[])

{

philosopher ob=new philosopher();

philosopher ob1=new philosopher();

philosopher ob2=new philosopher();

philosopher ob3=new philosopher();

philosopher ob4=new philosopher();

ob.start();

ob1.start();

ob2.start();

ob3.start();

ob4.start();

}

}

cheers i hope this helped !!

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