摘要： Java doesnot support pointers. Pointers are tricky to use and troublesome.Java does not support multiple inheritances because it causes more problems than it solves. Instead Java supports multiple interface inheritance, which allows an object to inherit many method signatures from different interfac 阅读全文

摘要： We follow the four steps in the design principle:FUNCTIONThere are three types of parking spaces: motorbike, car and handicapped car. Motorbikes and cars can only be parked in their designated parking spaces, while handicapped cars can be parked either in their own parks or those for regular cars.An 阅读全文