Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Related questions
Concept explainers
Question
import java.util.ArrayList;
import java.util.Arrays;
public class PS
{
/**
* Write the method named mesh.
*
* Start with two ArrayLists of String, A and B, each with
* its elements in alphabetical order and without any duplicates.
* Return a new list containing the first N elements from the two
* lists. The result list should be in alphabetical order and without
* duplicates. A and B will both have a size which is N or more.
* Your solution should make a single pass over A and B, taking
* advantage of the fact that they are in alphabetical order,
* copying elements directly to the new list.
*
* Remember, to see if one String is "greater than" or "less than"
* another, you need to use the compareTo() method, not the < or >
* operators.
*
* Examples:
* mesh(["a","c","z"], ["b","f","z"], 3) returns ["a","b","c"]
* mesh(["a","c","z"], ["c","f","z"], 3) returns ["a","c","f"]
* mesh(["f","g","z"], ["c","f","g"], 3) returns ["c","f","g"]
*
* @param a an ArrayList of String in alphabetical order.
* @param b an ArrayList of String in alphabetical order.
* @param n the size of the resulting list to return.
* @return a list of n elements in alphabetical order.
*/
// TODO - Write the mesh method here.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 3 steps with 3 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Given the following linked lists: Trace the following codeon these two linked lists and show what will be printed.arrow_forwardstarter code //Provided imports, feel free to use these if neededimport java.util.Collections;import java.util.ArrayList; /** * TODO: add class header */public class Sorts { /** * this helper finds the appropriate number of buckets you should allocate * based on the range of the values in the input list * @param list the input list to bucket sort * @return number of buckets */ private static int assignNumBuckets(ArrayList<Integer> list) { Integer max = Collections.max(list); Integer min = Collections.min(list); return (int) Math.sqrt(max - min) + 1; } /** * this helper finds the appropriate bucket index that a data should be * placed in * @param data a particular data from the input list if you are using * loop iteration * @param numBuckets number of buckets * @param listMin the smallest element of the input list * @return the index of the bucket for which the particular data should…arrow_forwardLab 14.1 Beginning to build an Arrazlizt recursively In this sequence of problems we practice recursion by abandoning our reliance on iteration. We resolve to solve a sequence of problems without using while or for loops. Instead we will think recursively and look at the world through a different lens. Recursion is all about solving a large problem by using the solution to a similar smaller problem. The brilliant thing about recursion is that you can assume you already know how to solve the smaller problem. The goal is to demonstrate how the smaller solution relates to the larger problem at hand. For example, suppose you want to print all binary strings of length 3 and you already know how to print all binary strings of length 2. Here they are: 00 01 10 11 How can we solve the larger problem with a list of strings of length 2? Add a "0" or "1", right? So here is the solution to the larger problem: 00 + 0 = 000 01 + 0 = 010 10 + 0 = 100 11 +0 = 110 and 00 + 1 = 001 01 + 1 = 011 10 + 1 =…arrow_forward
- Has to be done in Java, import ArrayListarrow_forwardPROBLEM STATEMENT: In this problem you will need to insert 5 at the frontof the provided ArrayList and return the list. import java.util.ArrayList;public class InsertElementArrayList{public static ArrayList<Integer> solution(ArrayList<Integer> list){// ↓↓↓↓ your code goes here ↓↓↓↓return new ArrayList<>(); Can you help me with this question The Language is Javaarrow_forwardComplete the combinations function to generate all combinations of the characters in the string s with length k recursivelyarrow_forward
- java In this assignment you will swap a position in an array list with another. swap() gets 3 arguments, an Arraylist, a position, and another position to swap with. Example swap(["one","two","three"],0,2) returns:["three","two","one"] public static ArrayList<String> swap(ArrayList<String> list,int pos1,int pos2) public static void main(String[] args) { Scanner in = new Scanner(System.in); int size = in.nextInt(); int pos1 = in.nextInt(); int pos2 = in.nextInt(); ArrayList<String> list = new ArrayList<>(); for(int i=0; i < size; i++) { list.add(in.next()); } System.out.println(swap(list, pos1, pos2)); } }arrow_forwarddef findOccurrences(s, ch): lst = [] for i in range(0, len(s)): if a==s[i]: lst.append(i) return lst Use the code above instead of enumerate in the code posted below. n=int(input("Number of rounds of Hangman to be played:")) for i in range(0,n): word = input("welcome!") guesses = '' turns = int(input("Enter the number of failed attempts allowed:")) def hangman(word): secrete_word = "-" * len(word) print(" the secrete word " + secrete_word) user_input = input("Guess a letter: ") if user_input in word: occurences = findOccurrences(word, user_input) for index in occurences: secrete_word = secrete_word[:index] + user_input + secrete_word[index + 1:] print(secrete_word) else: user_input = input("Sorry that letter was not found, please try again: ") def findOccurrences(s, ch): return [i for i, letter in enumerate(s) if letter == ch] *** enumerate not discussed in…arrow_forwardCan you please answer this fast and with correct answer. Thankyouarrow_forward
- starter code import java.util.ArrayList; public class SortsTracing { //Note: Style is not required for this file //for reference public ArrayList<int[]> SelectionSortExampleList() { ArrayList<int[]> answer = new ArrayList<int[]>(); answer.add(new int[]{-1, 20, 18, 17, 9, 4, 2, 0, 40}); answer.add(new int[]{-1, 0, 18, 17, 9, 4, 2, 20, 40}); answer.add(new int[]{-1, 0, 2, 17, 9, 4, 18, 20, 40}); answer.add(new int[]{-1, 0, 2, 4, 9, 17, 18, 20, 40}); answer.add(new int[]{-1, 0, 2, 4, 9, 17, 18, 20, 40}); answer.add(new int[]{-1, 0, 2, 4, 9, 17, 18, 20, 40}); // etc... (the rest of the iterations) return answer; } public ArrayList<int[]> InsertionSortRandomList() { ArrayList<int[]> answer = new ArrayList<int[]>(); answer.add(new int[]{30, 62, 5, 109, 66, 17, 51, 18}); // TODO return answer; } public ArrayList<int[]>…arrow_forwardCreate class Test in a file named Test.java. This class contains a main program that performs the following actions: Instantiate a doubly linked list. Insert strings “a”, “b”, and “c” at the head of the list using three Insert() operations. The state of the list is now [“c”, “b”, “a”]. Set the current element to the second-to-last element with a call to Tail() followed by a call to Previous()Then insert string “d”. The state of the list is now [“c”, “d”, “b”, “a”]. Set the current element to past-the-end with a call to Tail() followed by a call to Next(). Then insert string “e”. The state of the list is now [“c”, “d”, “b”, “a”, “e”] . Print the list with a call to Print() and verify that the state of the list is correct.arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill Education
Starting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSON
Digital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON 
C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSON
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Programmable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education