GearShifter (Library-of-Gongolierium 4.0.7 API)

All Known Implementing Classes:

PneumaticShifter
```
public interface GearShifter
```
A gear shifter

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`downshift()`	Shift to a lower gear
`int`	`getGear()`
`int`	`getTotalGears()`
`void`	`upshift()`	Shift to a higher gear

- Method Detail
  - upshift
```
void upshift()
```
    Shift to a higher gear
  - downshift
```
void downshift()
```
    Shift to a lower gear
  - getGear
```
int getGear()
```
    Returns:
    
    the current gear
  - getTotalGears
```
int getTotalGears()
```
    Returns:
    
    the total number of gears