Synchronised Printer in java

Take a guess whats this string trying to convey and match your guess with code output later.
public static String s="ASvhiurkalla";

Well let me put two synchronized writers that would write one character alternatively.

This way we would expect to see Aviral Shukla as  actual output.

 package aiwi.code;  
 public class SyncPrinter {  
      public int index;  
      boolean done = false;  
      synchronized void print2() {  
           if(!done)  
                try {  
                     wait();  
                } catch(InterruptedException e) {  
         Thread.interrupted();  
                }  
           if(index<s.length())  
                System.out.println("\t" + s.charAt(index));  
           done = false;  
           notify();  
      }  
      synchronized void print1(int n) {  
           if(done)  
                try {  
                     wait();  
                } catch(InterruptedException e) {  
                     System.out.println("InterruptedException caught");  
                }  
           if(n<s.length())  
                System.out.println("" + s.charAt(n));  
           this.index = n+1;  
           done = true;  
           notify();  
      }  
      public static String s="ASvhiurkalla";  
      public static void main(String[] args) {  
           SyncPrinter q=new SyncPrinter();  
           new Printer1(q).start();  
           new Printer2(q);  
      }  
 }  
 class Printer1 extends Thread {  
      SyncPrinter q;  
      Printer1(SyncPrinter q) {  
           this.q = q;  
      }  
      public void run() {  
           int i = -2;  
           while(q.index<=SyncPrinter.s.length()) {  
                i=i+2;  
                q.print1(i);  
           }  
      }  
 }  
 class Printer2 extends Thread {  
      SyncPrinter q;  
      Printer2(SyncPrinter q) {  
           this.q = q;  
           new Thread(this, "Printer2").start();  
      }  
      public void run() {  
           while(q.index<=SyncPrinter.s.length()) {  
                q.print2();  
           }  
      }  
 }  

I would hope readers do see the producer consumer aspect of this program.

Producer consumer thread

A good example for producer consumer problem can be desktop search application. for the producer it s the searcher alias crawler which just visits all the files on given roots or drives. For the consumer we have the storer or the indexer who takes the file and provides easy an quick access to it. For the implementation I guess blocking queue data structure is sufficient with two producer consumer threads.