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AP CSA ArrayList Search (7.5)

Authored by Herman Galioulline

Computers

10th - 12th Grade

Used 13+ times

AP CSA ArrayList Search (7.5)
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5 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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The modification has no effect: the modified method will continue to return the index of the first appearance of the target value in the list, or -1 if the target value does not appear in the list.

The modified method will return the index of the last appearance of the target value in the list, or -1 if the target value does not appear in the list.

The modified method will throw an ArrayIndexOutOfBoundsException.

The modified method will return -1 regardless of the inputs.

The modified method will not compile.

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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The modified method will return the index of the first occurrence of target in arr.

The modified method will return the index of the last occurrence of target in arr.

The modified method will return target if target appears in arr and will return -1 otherwise.

The modified method will return -1 if target appears in arr and will return target otherwise.

The modified method will return -1 for all possible inputs.

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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Which of the following best describes the difference in the behavior of seqSearch2 relative to seqSearch as a result of the modification?

The modification in seqSearch2 has no effect: seqSearch2 will always behave exactly as seqSearch does.

The modification in seqSearch2 will cause a compilation error.

The modification in seqSearch2 will cause an ArrayIndexOutOfBoundsException to be thrown for some inputs.

The modification in seqSearch2 will cause -1 to be returned for all inputs.

The modification in seqSearch2 will cause the value of target to be returned instead of the index of target in cases where target appears in arr.

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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It has no impact on the behavior of the method.

It causes the method to ignore the last element in arr.

It causes the method to throw an IndexOutOfBounds exception.

It reduces the size of arr by 1 and the last element will be removed.

It changes the number of times the loop executes, but all indexes in arr will still be accessed.

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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It has no impact on the behavior of the method.

It will cause the method to return a different result when the key value is not in the list.

It will cause the method to return a different result when the key value is found only at the first index in the list.

It will cause the method to return a different result when the key value is found only at the last index in the list.

It will cause the method to throw an array index out of bounds exception.

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