Problem with Queue and threads

Question

Hello,
the following is the code :
public class Tester extends Thread
private String fname;
public String getFname()
   return fname;
public void setFname(String fname)
   this.fname = fname;
public Tester(String fname){
   super();
  this.fname = fname;
}Heres another class
class N {
    Thread r = null;
    public void checkQ()
      Queue q = new ConcurrentLinkedQueue<N>();
      for(int i = 0; i < 13; i++)
         System.out.println("FOR I is "+i);
         r = new Tester("Name" + i);
         q.offer(r);
         processq(q);
    public void processq(Queue queueOfM)
       if(queueOfM.size() > 10)
          System.out.println("size of queueofM is "+queueOfM.size());
        for(int j=0; j < queueOfM.size();j++)
             System.out.println("J is "+j);
             this.r = (Thread)queueOfM.poll();
             this.r.start();
   }When run, the code prints :
FOR I is 0
FOR I is 1
FOR I is 2
FOR I is 3
FOR I is 4
FOR I is 5
FOR I is 6
FOR I is 7
FOR I is 8
FOR I is 9
FOR I is 10
size of queueofm is 11
J is 0
J is 1
J is 2
J is 3
J is 4
J is 5
FOR I is 11
FOR I is 12I was expecting the code to print the J till 11.
Could you please help me find where I went wrong ?

Answer 1

I think I may have been asking a wrong question.
class N {
    Thread r = null;
    public void checkQ()
      Queue q = new ConcurrentLinkedQueue<N>();
      for(int i = 0; i < 13; i++)
         System.out.println("FOR I is "+i);
         r = new Tester("Name" + i);
         q.offer(r);
         processq(q);
    public void processq(Queue queueOfM)
       if(queueOfM.size() > 10)
          System.out.println("size of queueofM is "+queueOfM.size());
        for(int j=0; j < queueOfM.size();j++)
             System.out.println("J is "+j);
             this.r = (Thread)queueOfM.poll();
             this.r.start();
          }The if in the processq method will come true when I is 11. so, once in the if, the for loop is executed. The j is checked till it is < 11 and then the value of j is being printed. So, as I was expecting J should print till atleast 10. However it is printing till 5 and quitting the loop, I dont know how or why, for which I was thinking if someone could show me why.