摘要:
Problem statementA retail application store wants to automate the system of purchase of items by customers and the billing process.The automation involves the maintenance of customers,purchase of items by customer and billing of items.Customers can be regular visitors to the store in which case they 阅读全文
摘要:
一1.Introduction to OOP2.Object Oriented Concepts3.Introduction to OOAD and UML二1.Classes and Objects2.Java Architecture3.'this' reference4.Operators5.Control Structures6.Type Casting and Conversion三1.Arrays2.Strings3.Constructors(default constructors)4.'static' keyword5.Command Line 阅读全文
摘要:
一:抽象类与接口的区别(用英文描述) Interface is open to the public, there can not have the private methods and variables.It is used to let others use, but the abstract class can have private methods or private variables.In addition, the realization of the interface must be realized in the interface definition of al 阅读全文