The dequeue method will also use method incrementIndex to add one to frontIndex (with wrap-around) before returning the value that was at the front of the queue. The other queue methods (empty and size) are the same as those methods for the Stack class -- they just use the value of the numItems field.
In other words, drinking alcohol is not entirely positive. Excessive drinking can cause increased risk of stroke, arrhythmia (irregular heartbeat), and heart muscle disease. Excessive calories that you can get from alcohol can raise your triglyceride (another kind of bad cholesterol). And the increased triglyceride can be potential to affect your LDL to rise.
Drinking too much alcohol can actually increase your risk for heart disease and stroke, raise blood pressure, contribute to obesity, and increase the levels of fats called triglycerides in the blood. Excessive drinking also can lead to heart muscle disease (cardiomyopathy), irregular heartbeat (arrhythmia), and stroke.