2015 AP Computer Science A 计算机科学A真题系列之Released Exam简答题免费下载

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2015 AP Computer Science A Released Exam Free-Response Questions Free Download

2015 AP 计算机科学A公开卷简答题部分免费下载

此套题仅 Section II含有简答题,

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1)This question involves reasoning about one-dimensional and two-dimensional arrays of integers. You will write three static methods, all of which are in a single enclosing class, named DiverseArray (not shown). The first method returns the sum of the values of a one-dimensional array; the second method returns an array that represents the sums of the rows of a two-dimensional array; and the third method analyzes row sums.

  1. Write a static method arra Sum that calculates and returns the sum of the entries in a specified one-dimensional array. The following example shows an arr1 and the value returned by a call to arraySum.2015国际课程AP Computer Science A计算机科学A真题与答案下载
    Complete method arraySum below.2015国际课程AP Computer Science A计算机科学A真题与答案下载
  2. Write a static method rowSums that calculates the sums of each of the rows in a given two-dimensional array and returns these sums in a one-dimensional array. The method has one parameter, a two-dimensional array arr2D of int values. The array is in row-major order: arr2D [r] [c] is the entry at row r and column c. The method returns a one-dimensional array with one entry for each row of arr2D such that each entry is the sum of the corresponding row in arr2D . As a reminder, each row of a two-dimensional array is a one-dimensional array.
    For example, if mat1 is the array represented by the following table, the call rowSums (mat1) returns the array {16,32,28,20}2015国际课程AP Computer Science A计算机科学A真题与答案下载
    Assume that arraySum works as specified, regardless of what you wrote in part (a). You must use arraySum appropriately to receive full credit.
    Complete method rowSums below.2015国际课程AP Computer Science A计算机科学A真题与答案下载

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