'Null object' presentation slideshows

642 views • 55 slides

Design Patterns and Refactoring

Design Patterns and Refactoring. History. A Pattern Language: Towns, Buildings, Construction, Christopher Alexander, 1977 The Timeless Way of Building, Christopher Alexander, 1979

648 views • 50 slides

Refactoring and Code Smells

Refactoring and Code Smells. Why do good developers write bad software?. Requirements change over time, making it hard to update your code (leading to less optimal designs) Time and money cause you to take shortcuts

632 views • 39 slides

What is Refactoring?

What is Refactoring?. CSE301 University of Sunderland Harry R. Erwin, PhD. Purpose. The purpose of this lecture is to introduce a way of cleaning up working code. This is called refactoring and is part of current industry practice .

401 views • 32 slides

Refactoring and Code Smells

Refactoring and Code Smells. Dan Fleck Spring 2009. Where are we?. Over the semester we have talked about Software Engineering. The overall goal of software engineering is to create high quality software efficiently.

272 views • 24 slides

CSE 143

CSE 143. Lecture 25: Inheritance and Polymorphism. Input and output streams. stream : an abstraction of a source or target of data 8-bit bytes flow to (output) and from (input) streams can represent many data sources: files on hard disk another computer on network web page

262 views • 23 slides

Software Construction and Evolution - CSSE 375 Simplifying Conditionals

Software Construction and Evolution - CSSE 375 Simplifying Conditionals. Shawn & Steve. Simplifying Conditionals. Conditional logic can get tricky and refactorings can be used to simplify it Some Bad Code Smells Long Method Switch Statements Temporary Field. Decompose Conditional

381 views • 22 slides