Queue q = new LinkedList<>(); Queue q2 = q; q2 new LinkedList<>(); Queue q3 = q2; How many Linked List objects are created in this snippet? 3 问题2 Consider the following code snippet Queue q = new LinkedList<>(); Queue q2 = q; q2 new LinkedList<> (); Queue q3 = q2; How many Queue references exist at the end of this snippet? 3 问题3 Consider the following code: public static void method (String[][] arr) { for (int i = 0; i < arr.length; i++) { for (int j = 0; j < arr[i].length; j++) { arr[j][1] = arr[j][1].toLowerCase(); } [ ] Suppose you have written this solution to a problem that asks you to write a method that accepts a 2D array of Strings (guaranteed to be rectangular) and makes each of its elements lowercase. You've already tried it with the problem's example which uses 2D array: [ and after it's passed to your method, it correctly contains: ] } ["HI", "Yo", "OI"], ["BYe", "18R", "NAH"], ["K", "y", "u"] ["hi", "yo", "01"], ["bye", "18r", "nah"], O ] Select an option below that makes a good test candidate to test a different case that shows the presence of a bug. ✓Bux ["fuzzy"] V已提交 ["PUP", "pup"], ["pup", "PUP"]
Queue q = new LinkedList<>(); Queue q2 = q; q2 new LinkedList<>(); Queue q3 = q2; How many Linked List objects are created in this snippet? 3 问题2 Consider the following code snippet Queue q = new LinkedList<>(); Queue q2 = q; q2 new LinkedList<> (); Queue q3 = q2; How many Queue references exist at the end of this snippet? 3 问题3 Consider the following code: public static void method (String[][] arr) { for (int i = 0; i < arr.length; i++) { for (int j = 0; j < arr[i].length; j++) { arr[j][1] = arr[j][1].toLowerCase(); } [ ] Suppose you have written this solution to a problem that asks you to write a method that accepts a 2D array of Strings (guaranteed to be rectangular) and makes each of its elements lowercase. You've already tried it with the problem's example which uses 2D array: [ and after it's passed to your method, it correctly contains: ] } ["HI", "Yo", "OI"], ["BYe", "18R", "NAH"], ["K", "y", "u"] ["hi", "yo", "01"], ["bye", "18r", "nah"], O ] Select an option below that makes a good test candidate to test a different case that shows the presence of a bug. ✓Bux ["fuzzy"] V已提交 ["PUP", "pup"], ["pup", "PUP"]
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
Related questions
Question
for the third question, I'm not sure which one is the right answer.
![Queue<Integer> q = new LinkedList<> ();
Queue<Integer> q2 = q;
q2 new LinkedList<> ();
Queue<Integer> q3=q2;
How many Linked List objects are created in this snippet?
3
问题2
Consider the following code snippet
Queue<Integer> q = new LinkedList<> ();
Queue<Integer> q2 = q;
q2 = new LinkedList<> ();
Queue<Integer> q3 = q2;
How many Queue references exist at the end of this snippet?
3
问题3
Consider the following code:
public static void method (String[] [] arr) {
for (int i = 0; i < arr.length; i++) {
for (int j = 0; j < arr[i].length; j++) {
arr[j][i] = arr[j][i].toLowerCase();
}
[
]
Suppose you have written this solution to a problem that asks you to write a method that accepts a 2D array of
Strings (guaranteed to be rectangular) and makes each of its elements lowercase. You've already tried it with the
problem's example which uses 2D array:
[
and after it's passed to your method, it correctly contains:
]
}
["HI", "Yo", "OI"],
["BYe", "18R", "NAH"],
["K", "y", "u"]
["hi", "yo", "oi"],
["bye", "18r", "nah"],
["k", "y", "u"]
[
[
Select an option below that makes a good test candidate to test a different case that shows the presence of a bug.
V已提交
["fuzzy"]
V已提交
["PUP", "pup"],
["pup", "PUP"]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6c680976-d041-43f6-b2b7-59630778639d%2Fc36eac5e-15d8-463b-85e0-3112b418456d%2Fe95bnt_processed.png&w=3840&q=75)
Transcribed Image Text:Queue<Integer> q = new LinkedList<> ();
Queue<Integer> q2 = q;
q2 new LinkedList<> ();
Queue<Integer> q3=q2;
How many Linked List objects are created in this snippet?
3
问题2
Consider the following code snippet
Queue<Integer> q = new LinkedList<> ();
Queue<Integer> q2 = q;
q2 = new LinkedList<> ();
Queue<Integer> q3 = q2;
How many Queue references exist at the end of this snippet?
3
问题3
Consider the following code:
public static void method (String[] [] arr) {
for (int i = 0; i < arr.length; i++) {
for (int j = 0; j < arr[i].length; j++) {
arr[j][i] = arr[j][i].toLowerCase();
}
[
]
Suppose you have written this solution to a problem that asks you to write a method that accepts a 2D array of
Strings (guaranteed to be rectangular) and makes each of its elements lowercase. You've already tried it with the
problem's example which uses 2D array:
[
and after it's passed to your method, it correctly contains:
]
}
["HI", "Yo", "OI"],
["BYe", "18R", "NAH"],
["K", "y", "u"]
["hi", "yo", "oi"],
["bye", "18r", "nah"],
["k", "y", "u"]
[
[
Select an option below that makes a good test candidate to test a different case that shows the presence of a bug.
V已提交
["fuzzy"]
V已提交
["PUP", "pup"],
["pup", "PUP"]
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Follow-up Question
Sorry, this is the full picture(with option 3 and 4)
Is the correct answer still be 2?
![[
[
[
]
[
]
["fuzzy"]
["PUP", "pup"],
["pup", "PUP"]
["boo", "BLa"],
["zap", "Fez"],
["qUO", "JOY"]
["BY", "AX", "UM"],
["AW", "EW", "MA"],
["PE", "HI", "AT"]](https://content.bartleby.com/qna-images/question/6c680976-d041-43f6-b2b7-59630778639d/31112e10-abd6-47d4-8bbc-7f671119feac/i2odg3ts_processed.png)
Transcribed Image Text:[
[
[
]
[
]
["fuzzy"]
["PUP", "pup"],
["pup", "PUP"]
["boo", "BLa"],
["zap", "Fez"],
["qUO", "JOY"]
["BY", "AX", "UM"],
["AW", "EW", "MA"],
["PE", "HI", "AT"]
Solution
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