MainA.java

package tp8e3;
import java.time.LocalDateTime;
import java.util.concurrent.*;

public class MainA {

    public static void main(String[] args){
        LocalDateTime ahorai= LocalDateTime.now();
        System.out.println("Inicio:"+" "+ahorai.getHour()+":"+ ahorai.getMinute()+":"+ ahorai.getSecond());
        Semaphore s1 = new Semaphore(1);
        Semaphore s2 = new Semaphore(1);
        Semaphore s3 = new Semaphore(1);
        boolean Demora = true;
        for (int i=0; i<50; i++) {
         boolean t = true;
         while (t){
          if (s1.availablePermits()==1) {
             new Thread (new Caja("Cliente nro"+" "+ i, s1)).start();
             t = false;
          }else {
           if (s2.availablePermits()==1) {
                 new Thread (new Caja("Cliente nro"+" "+ i, s2)).start();
                 t = false;
           }else {
             if (s3.availablePermits()==1) {
                 if (Demora) {
                     try{
                      Caja.sleep(15000);
                      LocalDateTime ahora= LocalDateTime.now();
                      System.out.println("Caja 3 habilitada"+" "+ahora.getHour()+":"+ ahora.getMinute()+":"+ ahora.getSecond());
                      Demora = false;
                      new Thread (new Caja("Cliente nro"+" "+ i, s3)).start();
                      t = false;
                      }catch(InterruptedException e) {
                         e.printStackTrace();
                      }
                }else {
                        new Thread (new Caja("Cliente nro"+" "+ i, s3)).start();
                        t = false;
                     }
             }

           }

         }
        }

}}}