Java????????????
???????????? ???????[ 2013/1/24 11:29:20 ] ????????
????Interfaces ???
??????????????У??????“???”?漲???????????С????????????????????????????????С?鶼????????????????????????????????????????Java?е?interface???????????“???”??
??????????????????δ????????????????????????????????????????????????????????????????????????????????Java????????????????????????????????????????????????????????????????GPSλ????????????????????????????????????Щ??????????????
?????????????????????????interface????interface???????????Щmethods???????????????????????????????κ????????κ???????????????????????????????interface??????????methods?????????????κ?????????????????????????????????????????????????????????????????????????interface???????????????????????и????????????????????????????
??????java?е?interface
??????java????????????interface???????????reference????????class????????????????????constants?????????????method signatures????????????nested types????Interface???ú??з???????????method body???? Interface ????????????instantiated????????????class????implemented???????????interface??С?
???????????interface????????????????
public interface OperateCar {
// constant declarations?? if any
// method signatures
// An enum with values RIGHT?? LEFT
int turn(Direction direction??
double radius??
double startSpeed??
double endSpeed);
int changeLanes(Direction direction??
double startSpeed??
double endSpeed);
int signalTurn(Direction direction??
boolean signalOn);
int getRadarFront(double distanceToCar??
double speedOfCar);
int getRadarRear(double distanceToCar??
double speedOfCar);
……
// more method signatures
}
??????????????????interface???????д???class????????????????????????class??????????????????????и?interface???????????з?????methods??????????
???????????????????????????У??????????????????????????????????????????????????﹫???????????????????????????? ??????????????????????????????????????????????λ??GPS?????????????????????????????????????????????????漰???μ??????methods???? ????е???????????????
????API ???
???????????????????????interface?????????ó??????API?? Application Programming Interface???е????. ?????????У?API???????? ?????????????????????????л??????????????????????????е?????????methods???????????????????????δ????????????????????????????????????????????????ù?????????interface??????????????????????????п??????????API????????ЩAPI??????????????????????????????????interface?????????ЩAPI??????????????????????д??
????Interfaces ???????
??????java?????????interface?????????????????á? ????Interface????????????????????????????ν?????????java???????????????У?????interface?????????????
??????java?У??????????????????????????????????????????????????ж??????????????????????????????????????е????н????????????ζ?????????????????????????????????????????????κ????y??????????????????“??y??????”??????????
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