2008 AP Computer Science A 計算機科學A真題系列之Practice Exam選擇題免費下載

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2008 Computer Science A Practice Exam?Multiple Choices?Free Download

2008 計算機科學A模考選擇題部分免費下載

此套題僅?p I含有選擇題，

共計時1小時15分鐘，共40題

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部分真題預覽：

8）Consider the following class declaration.

Which of the following declarations will compile without error?

I. Student a = new Student ();

II. Student b = new Student ("Juan",15);

III. Student c = new Student ("Juan","15");

1. I only
2. II only
3. I and II only
4. I and III only
5. I, II, and III

Questions 10-11 refer to the following information.

Consider the following instance variable and methods. You may assume that data has been initialized with length > 0. The methods are intended to return the index of an array element equal to target, or -1 if no such element exists.

10) For which of the following test cases will the call seqSearchRec (5) always result in an error?

1. data contains only one element
2. data does not contain the value 5
3. data contains the value 5 multiple times

1. I only
2. II only
3. III only
4. I and II only
5. I, II, and III

11)Which of the following should be used to replace // Line 1 in seqSearchRecHelper so that seqSearchRec will work as intended?

1. if (last <= 0) return -1;
2. if (last <0) return -1;
3. if ( last < data.length) return -1;
4. while ( last < data. length)
5. while ( last >= 0)