Semaphore[] semaphores = new Semaphore[NUM_PROGRESSBARS];

// notice the first Semaphore is 'unlocked' while the rest are 'locked'
semaphores[0] = new Semaphore(1);
semaphores[1] = new Semaphore(0);
semaphores[2] = new Semaphore(0);
semaphores[3] = new Semaphore(0);
semaphores[4] = new Semaphore(0);