tailieunhanh - Lecture Java: Chapter 7

Lecture Java: Chapter 7 software development activities, determining the classes and, objects that are needed for a program, the relationships that can exist among classes, the static modifier, writing interfaces, the design of enumerated type classes, method, design and method overloading, GUI design and layout managers. | Copyright © 2012 Pearson Education, Inc. Chapter 7 Object-Oriented Design Java Software Solutions Foundations of Program Design Seventh Edition John Lewis William Loftus Object-Oriented Design Now we can extend our discussion of the design of classes and objects Chapter 7 focuses on: software development activities determining the classes and objects that are needed for a program the relationships that can exist among classes the static modifier writing interfaces the design of enumerated type classes method design and method overloading GUI design and layout managers Copyright © 2012 Pearson Education, Inc. Outline Software Development Activities Identifying Classes and Objects Static Variables and Methods Class Relationships Interfaces Enumerated Types Revisited Method Design Testing GUI Design and Layout Copyright © 2012 Pearson Education, Inc. Program Development The creation of software involves four basic activities: establishing the requirements creating a design implementing . | Copyright © 2012 Pearson Education, Inc. Chapter 7 Object-Oriented Design Java Software Solutions Foundations of Program Design Seventh Edition John Lewis William Loftus Object-Oriented Design Now we can extend our discussion of the design of classes and objects Chapter 7 focuses on: software development activities determining the classes and objects that are needed for a program the relationships that can exist among classes the static modifier writing interfaces the design of enumerated type classes method design and method overloading GUI design and layout managers Copyright © 2012 Pearson Education, Inc. Outline Software Development Activities Identifying Classes and Objects Static Variables and Methods Class Relationships Interfaces Enumerated Types Revisited Method Design Testing GUI Design and Layout Copyright © 2012 Pearson Education, Inc. Program Development The creation of software involves four basic activities: establishing the requirements creating a design implementing the code testing the implementation These activities are not strictly linear – they overlap and interact Copyright © 2012 Pearson Education, Inc. Requirements Software requirements specify the tasks that a program must accomplish what to do, not how to do it Often an initial set of requirements is provided, but they should be critiqued and expanded It is difficult to establish detailed, unambiguous, and complete requirements Careful attention to the requirements can save significant time and expense in the overall project Copyright © 2012 Pearson Education, Inc. Design A software design specifies how a program will accomplish its requirements A software design specifies how the solution can be broken down into manageable pieces and what each piece will do An object-oriented design determines which classes and objects are needed, and specifies how they will interact Low level design details include how individual methods will accomplish their tasks Copyright © 2012 Pearson Education, .