all questions are in the pics. thanks! 9. Consider the following code segmentint] list = {0,1,2,3,4,5,6,7,8,9);int count = 10;for (int k = 0; k< list.length; k++){}(A) The original list array contains (0,1,2,3,4,5,6,7,8,9) and then every elementof the list array is changed to a random value in the [0..9] range.(B) The original list array contains (0,1,2,3,4,5,6,7,8,9) and then randomelements of the list array are changed to the current value of k.(C) The original list array contains (0,1,2,3,4,5,6,7,8,9) and stays unchangedthroughout the program execution.int index = (int) (Math.random() * count);list[index] = k;(D) The original list array contains (0,1,2,3,4,5,6,7,8,9) and then randomelements of the list array are changed to random values.(E) Without knowing the range of the random values generated, nothing can bedetermined.9. What is stored in the list array after the following program segmentexecutes?ABDOE 17. A perfect number has factors that add up the the number itself.For example 1 +2+4+7+ 14 = 28 shows that 28 is a perfect number.isPerfect should return true if nbr is a perfect numbers.public static boolean isPerfect(int nbr){int sum = 1;for (int k = 2; k

Answered: 9. Consider the following code segment…

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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all questions are in the pics. thanks!

9. Consider the following code segment
int] list = {0,1,2,3,4,5,6,7,8,9);
int count = 10;
for (int k = 0; k< list.length; k++)
{
}
(A) The original list array contains (0,1,2,3,4,5,6,7,8,9) and then every element
of the list array is changed to a random value in the [0..9] range.
(B) The original list array contains (0,1,2,3,4,5,6,7,8,9) and then random
elements of the list array are changed to the current value of k.
(C) The original list array contains (0,1,2,3,4,5,6,7,8,9) and stays unchanged
throughout the program execution.
int index = (int) (Math.random() * count);
list[index] = k;
(D) The original list array contains (0,1,2,3,4,5,6,7,8,9) and then random
elements of the list array are changed to random values.
(E) Without knowing the range of the random values generated, nothing can be
determined.
9. What is stored in the list array after the following program segment
executes?
A
B
D
OE

17. A perfect number has factors that add up the the number itself.
For example 1 +2+4+7+ 14 = 28 shows that 28 is a perfect number.
isPerfect should return true if nbr is a perfect numbers.
public static boolean isPerfect(int nbr)
{
int sum = 1;
for (int k = 2; k<nbr; k++)
if (nbr % k == 0)
sum += k;
return (nbr
}
= sum);
==
17. What is the behavior of the method?
It will return true for all value of nbr.
It will return false for all values of nbr
It will return true if nbr is a perfect number
It will return all the factors of nbr.
O None of the above

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Introduction

Programming involves writing code in a specific language that a computer can understand and execute to perform a task. It is a crucial aspect of computer science and is used in various fields such as software development, web development, data science, and artificial intelligence. Understanding how code works involves breaking down the syntax and logic used in a program to understand its purpose and potential output. It is an important skill for developers and computer scientists, as it helps them to write more efficient and effective code.

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