question: public void start ( ) { stop ( ) ; mCacheDispatcher = new CacheDispatcher ( mCacheQueue , mNetworkQueue , mDelivery ) ; mCacheDispatcher . start ( ) ; ThreadPoolExecutor threadPoolExecutor = ( ThreadPoolExecutor ) Executors . newFixedThreadPool ( mDispatchers . length ) ; for ( int i = 0 ; i < mDispatchers . length ; i ++ ) { NetworkDispatcher networkDispatcher = new NetworkDispatcher ( mNetworkQueue , mNetwork , mDelivery ) ; mDispatchers [ i ] = networkDispatcher ; threadPoolExecutor . submit ( networkDispatcher ) ; } }
target:  Starts the dispatchers in this queue.