2013年AP计算机科学A简答题真题+答案+PDF下载COMPUTERSCIENCEASECTIONIITime—1hourand45minutesNumberofquestions—4Percentoftotalscore—50Directions:SHOWALLYOURWORK.REMEMBERTHATPROGRAMS...
2013年AP计算机科学A简答题真题+答案+PDF下载
COMPUTER SCIENCE A
SECTION II
Time—1 hour and 45 minutes
Number of questions—4
Percent of total score—50
Directions: SHOW ALL YOUR WORK. REMEMBER THAT PROGRAM SEGMENTS ARE TO BE WRITTEN IN JAVA.
1. A music Web site keeps track of downloaded music. For each download, the site uses a DownloadInfo object to store a song's title and the number of times it has been downloaded. A partial declaration for the DownloadInfo class is shown below.
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