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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <title>page_960</title> <link rel="stylesheet" href="reset.css" type="text/css" media="all"> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> </head> <body> <table summary="top nav" border="0" width="100%"> <tr> <td align="left" width="30%" style="background: #EEF3E2"><a style="color: blue; font-size: 120%; font-weight: bold; text-decoration: none; font-family: verdana;" href="page_959.html">< previous page</a></td> <td align="center" width="40%" style="background: #EEF3E2"><strong style="color: #2F4F4F; font-size: 120%;">page_960</strong></td> <td align="right" width="30%" style="background: #EEF3E2"><a style="color: blue; font-size: 120%; font-weight: bold; text-decoration: none; font-family: verdana;" href="page_961.html">next page ></a></td> </tr> <tr> <td align="left" colspan="3" style="background: #ffffff; padding: 20px;"> <table border="0" width="100%" cellpadding="0"><tr><td align="center"> <table border="0" cellpadding="2" cellspacing="0" width="100%"><tr><td align="left"></td> <td align="right"></td> </tr></table></td></tr><tr><td align="left"><p></p><table border="0" cellspacing="0" cellpadding="0" width="100%"><tr><td align="right"><font face="Times New Roman, Times, Serif" size="2" color="#FF0000">Page 960</font></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"></td> <td colspan="3" height="12"></td> <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td> <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="2">聽聽聽聽聽聽聽聽聽聽/*聽in聽*/聽int聽endX,<br />聽聽聽聽聽聽聽聽聽聽/*聽in聽*/聽int聽endY聽聽);<br />private:<br /></font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table><table cellspacing="0" border="2" width="218" cellpadding="4"><tr><td valign="top"></td></tr></table><br /><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"></td> <td colspan="3" height="12"></td> <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td> <td><font face="Times New Roman, Times, Serif" size="3">};</font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"></td> <td colspan="3" height="12"></td> <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td> <td><font face="Times New Roman, Times, Serif" size="3">8. Write the function definition for the </font><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">Line</font><font face="Times New Roman, Times, Serif" size="3"> class constructor. (pp. 922925)</font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"></td> <td colspan="3" height="12"></td> <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td> <td><font face="Times New Roman, Times, Serif" size="3">9. What is the difference between static and dynamic binding of an operation to an object? (pp. 925930)</font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"></td> <td colspan="3" height="12"></td> <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td> <td><font face="Times New Roman, Times, Serif" size="3">10. Although there are many specific techniques for performing OOD, this chapter uses a three-step process. What are these three steps? (pp. 930934)</font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"></td> <td colspan="3" height="12"></td> <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td> <td><font face="Times New Roman, Times, Serif" size="3">11. When selecting a data representation for an abstract object, what three choices does the C++ programmer have? (pp. 934935)</font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"></td> <td colspan="3" height="12"></td> <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td> <td><font face="Times New Roman, Times, Serif" size="3">Answers 1. functions, objects 2. Data abstraction, inheritance, dynamic binding</font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"></td> <td colspan="3" height="12"></td> <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td> <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="2">3.聽class聽Pixel聽:聽public聽Point<br />聽聽聽{<br />聽聽聽public:<br />聽聽聽聽聽聽聽StatusType聽CurrentStatus()聽const;<br />聽聽聽聽聽聽聽pixel(聽/*聽in聽*/聽int聽聽聽聽聽聽聽聽initX,<br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽/*聽in聽*/聽int聽聽聽聽聽聽聽聽initY,<br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽/*聽in聽*/聽StatusType聽initStatus聽);<br />聽聽聽private:<br />聽聽聽聽聽聽聽StatusType聽status;<br />聽聽聽};<br />4.聽Pixel聽onePixel(3,聽8,聽OFF);<br />5.聽cout聽<聽"x-coordinate:聽"聽<somePixel.X_Coord()聽<聽endl;<br />聽聽聽cout聽<聽"y-coordinate:聽"聽<聽somePixel.Y_Coord()聽<聽endl;<br />聽聽聽if聽(somePixel.CurrentStatus()聽==聽ON)<br />聽聽聽聽聽聽聽cout聽<聽"Status:聽on"聽<聽endl;<br />聽聽聽else<br />聽聽聽聽聽聽聽cout聽<聽"Status:聽off"聽<聽endl;<br />6.聽Pixel::Pixel(聽/*聽in聽*/聽int聽聽聽聽聽聽聽聽initX,<br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽/*聽in聽*/聽int聽聽聽聽聽聽聽聽initY,<br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽/*聽in聽*/聽StatusType聽initStatus聽)<br /><br />聽聽聽聽聽聽聽:聽Point(initX,聽initY)聽聽聽聽聽聽聽聽聽聽聽//聽Constructor聽initializer<br />聽聽聽{<br />聽聽聽聽聽聽聽status聽=聽initStatus;<br />聽聽聽}<br />7.聽Point聽startPt;<br />聽聽聽聽Point聽endPt;<br />8.聽Line::Line(聽/*聽in聽*/聽int聽startX,<br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽/*聽in聽*/聽int聽startY,<br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽/*聽in聽*/聽int聽endX,<br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽/*聽in聽*/聽int聽endY聽聽聽聽)<br /><br />聽聽聽聽聽聽:startPt(startX,聽startY),聽endPt(endX,聽endY)<br />聽聽聽{<br /></font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table></td></tr></table><p><font size="0"></font></p>聽 </td> </tr> <tr> <td align="left" width="30%" style="background: #EEF3E2"><a style="color: blue; font-size: 120%; font-weight: bold; text-decoration: none; font-family: verdana;" href="page_959.html">< previous page</a></td> <td align="center" width="40%" style="background: #EEF3E2"><strong style="color: #2F4F4F; font-size: 120%;">page_960</strong></td> <td align="right" width="30%" style="background: #EEF3E2"><a style="color: blue; font-size: 120%; font-weight: bold; text-decoration: none; font-family: verdana;" href="page_961.html">next page ></a></td> </tr> </table> </body> </html>⌨️ 快捷键说明
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