Dr. Jorge Alberto Soria Alcaraz 19/06/2017
Lenguajes de desarrollo.
Universidad de Guanajuato.

--------------------------------------CLASE Principal--------------------------------------------------------

package prodcon;

import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author DrSoajorgea
 */
public class ProdCon {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args)  {
        // TODO code application logic here
        
        Areacomun area =new Areacomun(10);
        Productor oproductor = new Productor(10, area);
        Consumidor oconsumidor = new Consumidor(10, area);
        
        Thread h_productor = new Thread(oproductor);
        Thread h_consumidor = new Thread(oconsumidor);
        
        h_productor.start();
        h_consumidor.start();
        
        
        while(h_productor.isAlive() || h_consumidor.isAlive()){
            try {
                Thread.sleep(100);
            } catch (InterruptedException ex) {
                Logger.getLogger(ProdCon.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
        
        
        
    }
    
}



-----------------------------------------CLASE PRODUCTOR------------------------------------------------------------

package prodcon;

/**
 *
 * @author DrSoajorgea
 */
public class Productor implements Runnable{
    
    private Areacomun area = null;
    private int veces =0;
    
    
    public Productor (int v, Areacomun a){
        this.veces =v;
        this.area =a;
    }
    

    @Override
    public void run() {
        int i =0;
        while(i < this.veces){
            area.aumenta(1);
            i++;
            area.imprime();
        }
    }
    
}

-----------------------------------------CLASE CONSUMIDOR------------------------------------------------------------

package prodcon;

import static java.lang.Thread.sleep;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author DrSoajorgea
 */
public class Consumidor implements Runnable{

    private Areacomun area = null;
    private int veces =0;
    
    
    public Consumidor (int v, Areacomun a){
        this.veces =v;
        this.area =a;
    }
    
    @Override
    public void run() {
        int i =0;
        while(i< this.veces){
            if(area.disminuye()){
                i++;
            }
            else{
                try {
                    sleep(50);
                } catch (InterruptedException ex) {
                    System.out.println("Error");
                }
            }
           area.imprime();
        }
    }
    
}

-----------------------------------------CLASE AREACOMUN------------------------------------------------------------

package prodcon;

import java.util.ArrayList;

/**
 *
 * @author DrSoajorgea
 */
public class Areacomun {
    
    private ArrayList<Integer> area = null;
    
    public Areacomun(int size){
        this.area = new ArrayList<Integer>(size);    
   }
    
    synchronized public boolean aumenta (int valor){
        this.area.add(valor);
        return true;
    }
    
    synchronized public boolean disminuye (){
        if(this.area.size()>0)
        {
            this.area.remove(this.area.size()-1);
            return true;
        }
        return false;
    }
    
    public void imprime(){
        for(int i=0; i<this.area.size(); i++)
            System.out.printf(" %d ", this.area.get(i));
        System.out.println("");
    }
    
    
}