java - Number Generator using BlockingQueue -

i'm new in java programming. i', working on homework have use concurrency in our code. i've read a lot of resources don't know how solve problem. has 5 parts if me understand first part i'm sure can rest myself. please me do? here first part description:

there 1 thread job hand out numbers testing. thread run code in class called numbergenerator. thread should use instance of class implements java blockingqueue interface method of storing available numbers , sharing other threads need it. have 1 instance of class running in thread, , cannot run in main thread.

here code:

/**  * numbergenerator class used hand out numbers checked  * other threads.  */ public class numbergenerator {     /** biggest number plan check */     private final int biggestnumbertocheck;      /**      * queue place numbers generate, need      * checked      */     private final blockingqueue<integer> candidatequeue;     private final int smallesrnumberstart;      // todo: other state need?      /**      * create new instance of numbergenerator class, hand out      * numbers need checked.      *       * @param smallest      *            smallest number check      * @param biggest      *            biggest number check      * @param queue      *            queue put numbers check      */     public numbergenerator(int smallest, int biggest,             blockingqueue<integer> queue) {         biggestnumbertocheck = biggest;         candidatequeue = queue;         smallesrnumbertostart = smallest;     }      // todo: can decide how want turn runnable     // thread.  } 

to create thread have 2 options:

1. extend thread
2. implement runnable

so, pick one. in either case, must override/implement run method holds code run in created thread.

iiuc, in case method generate random numbers , put them in queue.

then, in main method, there instance of numbergenerator class instantiated appropriate implementation of blockingqueue, pick one, there several of them.

finally, call start method of thread instance begin generation of numbers.