questions are in the pics. thanks! 26. Consider the following code segment.String names1 =ArrayList names2 = new ArrayList();for (int k = 0; k< names1.length; k++)names2.add(names1[k]);Which of the following describes the the behavior of the code segment?(A) The code segment tries to copy every element of the names1 array into thenames2 array. The code is not correct,because the size() method should be used.(B) The code segment copies every element of the names2 array into the names1array.{"Joe","Deb","Tom","Ann","Bob","Sue"};(C) The code segment copies every element of the names1 array into the names2array.(D) The code segment tries to copy every element of the names2 array into thenames1 array. The code is not correct. Notevery element of the array is copied.(E) The code does not compile, method length() is lacking a set of parentheses.26. Which of the following describes the the behavior of the code segment?O ABO DE 27. There are two loop structures in Java that can be used with arrays:1. There is the traditional for loopthat accesses specified array elements using the index of each element.2. There is the newerenhanced for loop structure that accesses element of the array without usingan index.Which of thefollowing are advantages of using the traditional, index access, loop?It is simpler to use with multi-dimensional arrays.It is a read/write loop.It can access specified array elements.It has an easy-to-use initializer list to add a group of element to a new array.All of the above28. There are two loop structures in Java that can be used with arrays:1. There is the traditional for loopthat accesses specified array elements using the index of each element.2. There is the newerenhanced for loop structure that accesses element of the array without usingan index.Which of thefollowing are advantages of using the newer, enhanced for loop?It requires less program code.There is much less concern that the code creates an IndexOutOfBoundsExceptionIt is guaranteed that every element of the array is accessed.It can be used with data structures that have no index access.O All of the above

Introduction: Java programming with loops and arrays involves using loops and arrays to solve…

Answered: 26. Consider the following code…

26. Consider the following code segment. String[] names1 = {"Joe","Deb","Tom","Ann","Bob", "Sue"}; ArrayList names2 = new ArrayList(); for (int k = 0; k

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Fundamentals of Multithreaded Algorithms

An algorithm that executes a single instruction in a uniprocessor system is called a serial algorithm. In the case of a multiprocessor computer system, a multiprocessor computer can execute multiple instructions in parallel. A multithreaded algorithm is an algorithm that enables multiple instances of the code to be executed concurrently.Multithreading is a concept that allows the CPU to execute threads independently while sharing similar resources. It is an important CPU feature that works on the process. Thread is a sequence of instructions that executes in parallel with other threads. Because of multithreading, multiple tasks can be performed within a single process, making the execution faster.

Question

questions are in the pics. thanks!

26. Consider the following code segment.
String names1 =
ArrayList<String> names2 = new ArrayList<String>();
for (int k = 0; k< names1.length; k++)
names2.add(names1[k]);
Which of the following describes the the behavior of the code segment?
(A) The code segment tries to copy every element of the names1 array into the
names2 array. The code is not correct,
because the size() method should be used.
(B) The code segment copies every element of the names2 array into the names1
array.
{"Joe","Deb","Tom","Ann","Bob","Sue"};
(C) The code segment copies every element of the names1 array into the names2
array.
(D) The code segment tries to copy every element of the names2 array into the
names1 array. The code is not correct. Not
every element of the array is copied.
(E) The code does not compile, method length() is lacking a set of parentheses.
26. Which of the following describes the the behavior of the code segment?
O A
B
O D
E

27. There are two loop structures in Java that can be used with arrays:
1. There is the traditional for loop
that accesses specified array elements using the index of each element.
2. There is the newer
enhanced for loop structure that accesses element of the array without using
an index.
Which of the
following are advantages of using the traditional, index access, loop?
It is simpler to use with multi-dimensional arrays.
It is a read/write loop.
It can access specified array elements.
It has an easy-to-use initializer list to add a group of element to a new array.
All of the above
28. There are two loop structures in Java that can be used with arrays:
1. There is the traditional for loop
that accesses specified array elements using the index of each element.
2. There is the newer
enhanced for loop structure that accesses element of the array without using
an index.
Which of the
following are advantages of using the newer, enhanced for loop?
It requires less program code.
There is much less concern that the code creates an IndexOutOfBoundsException
It is guaranteed that every element of the array is accessed.
It can be used with data structures that have no index access.
O All of the above

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