QUESTION 13 Analyze the following code and select the right print result SingleLinkedList testInstance = new SinglelinkedList(); testInstance.add("tom"); testInstance.add("dick"); testInstance.add("harry"); System.out.println(testInstance.toString()); O (tom ==> dick ==> harry] O (head ==> tom ==> dick ==> harry] O [harry ==> dick ==> tom] O (harry ==> dick ==> tom ==> null] Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers Close exercice3.doCx exercice2.docx HIBA

QUESTION 13 Analyze the following code and select the right print result SingleLinkedList testInstance = new SinglelinkedList(); testInstance.add("tom"); testInstance.add("dick"); testInstance.add("harry"); System.out.println(testInstance.toString()); O (tom ==> dick ==> harry] O (head ==> tom ==> dick ==> harry] O [harry ==> dick ==> tom] O (harry ==> dick ==> tom ==> null] Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers Close exercice3.doCx exercice2.docx HIBA

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

See similar textbooks

Similar questions

Write a for loop to print all elements in courseGrades, following each element with a space (including the last). Print forwards, then backwards. End each loop with a newline. Ex: If courseGrades = {7, 9, 11, 10}, print:7 9 11 10 10 11 9 7 Hint: Use two for loops. Second loop starts with i = NUM_VALS - 1. Note: These activities may test code with different test values. This activity will perform two tests, both with a 4-element array (int courseGrades[4]). Also note: If the submitted code tries to access an invalid array element, such as courseGrades[9] for a 4-element array, the test may generate strange results. Or the test may crash and report "Program end never reached", in which case the system doesn't print the test case that caused the reported message. #include <iostream>using namespace std; int main() { const int NUM_VALS = 4; int courseGrades[NUM_VALS]; int i; for (i = 0; i < NUM_VALS; ++i) { cin >> courseGrades[i]; } /* Your solution goes…
Write a for loop to print all elements in courseGrades, following each element with a space (including the last). Print forwards, then backwards. End each loop with a newline. Ex: If courseGrades = {7, 9, 11, 10), print: 7 9 11 10 10 11 9 7 Hint: Use two for loops. Second loop starts with i = NUM_VALS - 1. Note: These activities may test code with different test values. This activity will perform two tests, both with a 4-element array (int courseGrades[4]). Also note: If the submitted code tries to access an invalid array element, such as courseGrades[9] for a 4-element array, the test may generate strange results. Or the test may crash and report "Program end never reached", in which case the system doesn't print the test case that caused the reported message. 1 #include HNm in 10 m DO G 2 3 int main(void) { 4 5 6 const int NUM_VALS = 4; int courseGrades [NUM_VALS]; int i; 7 8 for (i = 0; i < NUM_VALS; ++i) { scanf("%d", &(courseGrades[i])); 9 } 10 11 12 13 14 15 } /*Your solution…
In this assignment, you will compare the performance of ArrayList and LinkedList. More specifically, your program should measure the time to “get” and “insert” an element in an ArrayList and a LinkedList.You program should 1. Initializei. create an ArrayList of Integers and populate it with 100,000 random numbersii. create a LinkedList of Integers and populate it with 100,000 random numbers2. Measure and print the total time it takes to i. get 100,000 numbers at random positions from the ArrayList 3. Measure and print the total time it takes to i. get 100,000 numbers at random positions from the LinkedList 4. Measure and print the total time it takes to i. insert 100,000 numbers in the beginning of the ArrayList 5. Measure and print the total time it takes to i. insert 100,000 numbers in the beginning of the LinkedList 6. You must print the time in milliseconds (1 millisecond is 1/1000000 second).A sample run will be like this:Time for get in ArrayList(ms): 1Time for get in…
• Do not add statements that call print, input , or open , or add an import statement. • Do not use any break or continue statements. We are imposing this restriction (and we have not even taught you these statements) because they are very easy to abuse, resulting in terrible, hard to read code. • Do not modify or add to the import statements provided in the starter code. import math from typing import List, TextIO # For simplicity, we'll use "Station" in our type contracts to indicate that # we mean a list containing station data. # You can read "Station" in a type contract as: List[int, str, float, float, int, int, int] 23 # where the values at each index represent the station data as described in the # handout on Quercus. # A set of constants, each representing a list index for station information. ID - 0 NAME - 1 LATITUDE - 2 LONGITUDE - 3 CAPACITY - 4 BIKES_AVAILABLE - 5 DOCKS_AVAILABLE - 6 NO_KIOSK - 'SMART" # For use in the get_lat_lon_distance helper function EARTH RADIUS -…
void removeStudent(){System.out.print("\n Enter StudentID to remove: ");long id =sc.nextLong();int pos = searchStudentID(id);if(pos == -1)System.out.println("\n ERROR: No student found having same ID: " + id);elsecourses.remove(pos);} int searchStudentID(long studentID){for(int c = 0; c < students.size(); c++)if(studentID == students.get(c).getId())return c;return -1;} The code is supposed to prompt the user to enter a studentID and if it is in the records then it will be removed, but instead it just prompts me to enter and when i enter the ID, it does not remove the ID (I display the data again after I supposedly removed it but it is still there) and just returns back to the menu. What can I do to correct it?
Which of the following statements about the ArrayList class is/are false?
void removeStudent(){System.out.print("\n Enter StudentID to remove: ");long id =sc.nextLong();int pos = searchStudentID(id);if(pos == -1)System.out.println("\n ERROR: No student found having same ID: " + id);elsecourses.remove(pos);} int searchStudentID(long studentID){for(int c = 0; c < students.size(); c++)if(studentID == students.get(c).getId())return c;return -1;} The code is supposed to prompt the user to enter a studentID and if it is in the records then it will be removed, but instead it just prompts me to enter and when i enter the ID, it just exits and goes back to the menu. is there something wrong with my code?
3. Create an ArrayList of strings to store the names of celebrities or athletes. Add five names to the list. Process the list with a for loop and the get() method to display the names, one name per line. Pass the list to avoid method. Inside the method, Insert another name at index 2 and remove the name at index 4. Use a foreach loop to display the arraylist again, all names on one line separated by asterisks. After the method call in main, create an iterator for the arraylist and use it to display the list one more time. See Sample Output. SAMPLE OUTPUT Here is the list Lionel Messi Drake Adele Dwayne Johnson Beyonce Here is the new list * Lionel Messi * Drake * Taylor Swift * Adele * Beyonce Using an iterator, here is the list Lionel Messi Drake Taylor Swift Adele Beyonce
Create a for-each loop that outputs all elements in the role collection of Student objects. What is necessary for that loop to function?
Which expression should complete the code for the compareTo method of the following Employee class so that objects of the Employee class in an ArrayList are arranged based on alphabetical ordering of the values of the name attributes if the sort method of the Collections class is used to sort the ArrayList. a. this.name.compareTo(another.getName())b. toString().compareTo(another.toString())c. this.compareTo(another)d. 1e. 0
Task 4. Utility classes Implement a Menu-Driven program of ArrayList class using the above scenario and perform the following operations. a. Create an object of ArrayList class based on the scenario with explanations of the method used. b. Create a method that will allow inserting an element to ArrayList Class based on the scenario. The input field must be validated as necessary. C. Create a method to delete specific elements in the ArrayList with explanations of the method used.
Code NOT working. What to do? Here is code: appleList = [["Apple",52,14,0,0],["McIntosh red",80,18,0,0.5],["Gala (Apple)",52,11.4,0.2,0.3],["Fuji Apple",52,11.4,0.2,0.3],["Honey Crisp Apples",90,21,0,0],["Granny Smith Apples",52,11.4,0.2,0.3],["Red Delicious Apples",80,17,0,0],["Braeburn Apples",71.7,16,0.5,0.1],["Golden Delicious Apples",130,29,1,0],["Jonagold",130.7,34,1,0],["Cripps Pink Apple",80,18,0,0],["Empire Apples",80,17,0,0],["Produce Cortland Apples",70,6,1,5],["Jazz Apples",53.8,12,0.6,0.5],["Cameo Apples", 80,22,0,0]["Winesap Apples",80,22,0,0],["Rome Apples",80,22,0,0],["Ambrosia Apples",90,17,0.4,0],] print(":Type of Apple : Calories : Carbs (in GRAMS) : Protein (in GRAMS) : Fat (in GRAMS) :") for item in appleList:print(":",item[0]," "*(9-len(item[0])),":",item[1]," "*(13-len(item[1])),":",item[2]," "*(4-len(str(item[2]))),":")