C155-110711-LectureNotes

C155-110711-LectureNotes - o Private helper method o...

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CNIT 15500 Fall 2011 Lecture notes for 11/07/2011 Prof. Harriger Announcements Make sure that I have your picture file Assignments o Review today’s notes o Review Chapter 7 o Complete lab 8 – due tonight Quiz Course material from 8/22 through 11/2 Resources An Information Systems Approach to Object-Oriented Programming using Microsoft Visual C# Express, version 2.0 (Available from the Purdue Boiler Copy Maker center in Room 157 of the Purdue Memorial Union) Discussion topics Methods o What are they? o Why use them? o Two ways to return values Three types of methods
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Unformatted text preview: o Private helper method o Instance method o Shared or static method • Helper method o Why use them o Syntax private returnDataType methodName(paramList) { // method body } o paramList paramType paramName, paramType paramName, … • Syntax for calling a method o If method returns a value o If method has no return value • Example – a validation helper method: nbrIsValid (see example on course website) void if no return value int if returning int value precede with out if returning a value. E.g., out int distance...
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