### Question:
InventoryResult { public void setAvailCount(long availCount) { this.availCount = availCount; } InventoryResult();  InventoryResult(long availCount); long getAvailCount(); void setAvailCount(long availCount);  }### Answer:
@Test public void setAvailCount() { InventoryResult ivRes = new InventoryResult(); assertEquals(0, ivRes.getAvailCount(), 0); ivRes.setAvailCount(45678); assertEquals(45678, ivRes.getAvailCount(), 0); }