package concurrency.diners;import java.awt.*;class Fork {  private boolean taken=false;  private PhilCanvas display;  private int identity;  Fork(PhilCanvas disp, int id)    { display = disp; identity = id;}  synchronized void put() {    taken=false;    display.setFork(identity,taken);    notify();  }  synchronized void get()     throws java.lang.InterruptedException {    while (taken) wait();    taken=true;    display.setFork(identity,taken);  }}