consumer and producer

package javaapplication1;

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

public class JavaApplication1 {

    static Thread prod , cons;

    static int[] arr = new int[10];
    static int bufferSize = arr.length;
    static int pos=0;
    static int full=0; // number of slots full
    static int empty=bufferSize; // number of slots empty

    static boolean entry = false;

    public static void main(String[] args) {
         producer();
         cons();


    }

    public static void cons(){
        prod = new Thread(new Runnable() {
            @Override
            public void run() {
               for(int i=0; i<bufferSize; i++){
                   if(entry==true){
                       try {
                            Thread.sleep(200);
                        } catch (InterruptedException ex) {
                            Logger.getLogger(JavaApplication1.class.getName()).log(Level.SEVERE, null, ex);
                        }

                   }
                    if(entry==false){
                         full--;
                         entry=true;
                         System.out.println("Consumer working on index "+ i);
                         arr[i] = 0;
                         System.out.println(Arrays.toString(arr));
                         entry = false;
                         empty++;
                    }
               }
            }
        });
        prod.start();
    }
    public static void producer(){
         Random ran = new Random();
        cons = new Thread(new Runnable() {
            @Override
            public void run() {
               for(int i=0; i<bufferSize; i++){
                   if(entry==true){
                       try {
                            Thread.sleep(200);
                        } catch (InterruptedException ex) {
                            Logger.getLogger(JavaApplication1.class.getName()).log(Level.SEVERE, null, ex);
                        }
                   }
                    if(entry==false){
                         int item = ran.nextInt(100);
                         empty--;
                         entry=true;
                         System.out.println("Producer working on index "+ i);
                         arr[i] = item;

                         System.out.println(Arrays.toString(arr));
                         entry = false;
                         full++;
                    }
               }

            }
        });
        cons.start();
    }
}