接口实现分析总结

1接口回调PUBLICINTERFACESHAPEPUBLICSTATICDOUBLEPI3141526PUBLICABSTRACTDOUBLEGETAREAPUBLICABSTRACTDOUBLEGETPERIPUBLICCLASSCIRCLEIMPLEMENTSSHAPEPRIVATEDOUBLERPUBLICCIRCLEPUBLICCIRCLEDOUBLERTHISRROVERRIDEPUBLICDOUBLEGETAREARETURNRRPIOVERRIDEPUBLICDOUBLEGETPERIRETURN2PIRPUBLICCLASSRIMPLEMENTSSHAPEPRIVATEDOUBLEXPRIVATEDOUBLEYPUBLICRDOUBLEX,DOUBLEYTHISXXTHISYYPUBLICROVERRIDEPUBLICDOUBLEGETAREARETURNXY2OVERRIDEPUBLICDOUBLEGETPERIRETURNXYPUBLICCLASSTESTSHAPEPUBLICSTATICVOIDMAINSTRINGARGSCIRCLEC1NEWCIRCLE10RTNEWR20,30SHAPESC1/接口回调SYSTEMOUTPRINTLN“圆的面积“SGETAREA“T圆的周长“SGETPERISTSYSTEMOUTPRINTLN“矩形的面积“SGETAREA“T矩形的周长“SGETPERI2接口的子接口PUBLICINTERFACESHAPEPUBLICSTATICDOUBLEPI3141526PUBLICABSTRACTDOUBLEGETAREAPUBLICABSTRACTDOUBLEGETPERIPUBLICINTERFACESHAPE3DABLEEXTENDSSHAPEPUBLICABSTRACTDOUBLEGETVPUBLICCLASSCIRCLEIMPLEMENTSSHAPEPRIVATEDOUBLERPUBLICCIRCLEPUBLICCIRCLEDOUBLERTHISRROVERRIDEPUBLICDOUBLEGETAREARETURNRRPIOVERRIDEPUBLICDOUBLEGETPERIRETURN2PIRPUBLICCLASSRRIMPLEMENTSSHAPE3DABLEPRIVATEDOUBLEXPRIVATEDOUBLEYPUBLICRRPUBLICRRDOUBLEX,DOUBLEY,DOUBLEZTHISXXTHISYYTHISZZPRIVATEDOUBLEZOVERRIDEPUBLICDOUBLEGETVRETURNXYZOVERRIDEPUBLICDOUBLEGETAREARETURN0OVERRIDEPUBLICDOUBLEGETPERIRETURN0PUBLICCLASSTESTSHAPEPUBLICSTATICVOIDMAINSTRINGARGSSHAPE3DABLESTSTNEWCIR10,10SYSTEMOUTPRINTLN“圆柱体的体积“STGETVSTNEWRR10,10,10SYSTEMOUTPRINTLN“长方体的体积“STGETV3继承父类且有接口PUBLICINTERFACESHAPEPUBLICSTATICDOUBLEPI3141526PUBLICABSTRACTDOUBLEGETAREAPUBLICABSTRACTDOUBLEGETPERIPUBLICINTERFACESHAPE3DABLEEXTENDSSHAPEPUBLICABSTRACTDOUBLEGETVPUBLICCLASSCIRCLEIMPLEMENTSSHAPEPRIVATEDOUBLERPUBLICCIRCLEPUBLICCIRCLEDOUBLERTHISRRPUBLICDOUBLEGETRRETURNRPUBLICVOIDSETRDOUBLERTHISRROVERRIDEPUBLICDOUBLEGETAREARETURNRRPIOVERRIDEPUBLICDOUBLEGETPERIRETURN2PIRPUBLICCLASSCIREXTENDSCIRCLEIMPLEMENTSSHAPE3DABLEPRIVATEDOUBLEHPUBLICCIRPUBLICCIRDOUBLEHTHISHHOVERRIDEPUBLICDOUBLEGETV/圆柱没有必要再写SHAPE的方法，父类中已经实现，所以只生成父类接口中没有的方法RETURNSUPERGETAREAHPUBLICCLASSTESTSHAPEPUBLICSTATICVOIDMAINSTRINGARGSSHAPE3DABLESTCIRCNEWCIR10CSETR10SYSTEMOUTPRINTLN“圆柱体的体积“CGETV3广告PUBLICINTERFACEADABLEPUBLICABSTRACTVOIDPRINTNAMEPUBLICABSTRACTVOIDPRINTADPUBLICCLASSHUAWEIIMPLEMENTSADABLEOVERRIDEPUBLICVOIDPRINTNAMESYSTEMOUTPRINTLN“广告商名称华为“OVERRIDEPUBLICVOIDPRINTADSYSTEMOUTPRINTLN“MATE10,成功人士的选择“PUBLICCLASSXHUIMPLEMENTSADABLEOVERRIDEPUBLICVOIDPRINTNAMESYSTEMOUTPRINTLN“广告商名称西华大学“OVERRIDEPUBLICVOIDPRINTADSYSTEMOUTPRINTLN“西华大学,成就你的梦想“PUBLICCLASSTESTSHAPEPUBLICVOIDSHOWADABLEA/依赖关系，因为ADAB