a) What is the benefit of using ArrayList compared to the standard array? Answer: (b) What the output of the following code? ArrayList list = new ArrayList(); for (int i = 1; i <= 4; i++) { list.add(3 * i); } int size = list.size(); for (int i = 0; i < size; i++) { list.add(i, 6); } System.out.println(list);

a) What is the benefit of using ArrayList compared to the standard array? Answer: (b) What the output of the following code? ArrayList list = new ArrayList(); for (int i = 1; i <= 4; i++) { list.add(3 * i); } int size = list.size(); for (int i = 0; i < size; i++) { list.add(i, 6); } System.out.println(list);

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter9: Advanced Array Concepts

Section: Chapter Questions

Problem 18RQ

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Concept explainers

Passing Array as Argument

An array is a data structure that holds only fixed-size data and its contents are arranged in contiguous memory slots. The primary purpose of using an array is to store data items of the identical type together. An array can stockpile any one of the following types of data: int, float, char and so forth. The elements are stored from index 0, and the difference between the two indexes of the array is termed as an offset. The array has a fixed size. Once the size is defined during array declaration, it cannot be changed later.

Question

(a) What is the benefit of using ArrayList compared to the standard array?

Answer:

(b) What the output of the following code?

ArrayList<Integer> list = new ArrayList<Integer>();

for (int i = 1; i <= 4; i++) {

list.add(3 * i);

}

int size = list.size();

for (int i = 0; i < size; i++) {

list.add(i, 6);

}

System.out.println(list);

Answer:

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