Questions 3 The array is direct access. You do not move it from the beginningQuestions 4 How do you move an element from one spot to the next spot? Q3: Update an Element8.101214161847.8.6.Write a Java statement to change the element 10 to 100.Q4: Insert an Element248.10012141618-136.7.80If the last element (-1) means an empty cell, how do you insert 50 before the element 100?Write a set of Java code and explain it in English.P Type here to search1.006241

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Q3: Update an Element 4 8. 10 12 14 16 18 -1 4 6. 7. 8. 6. A Write a Java statement to change the element 10 to 100. 5. 62 20

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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a multiset is a collection of objects, just like a set, but can contain an object more than once ( the order of the elements still doesn't matter). for example, {1,1,2,5,5,7} is a multistset of size 6. a. how many sets of size 5 can be made using the 10 numeric digits 0 through 9? b. how many multisets of size 5 can be made using he 10 numeric digits 0 through 9?
For this exercise, you need to shift all the elements in the array one space to the right (increase the index of the element by 1). The last element will wrap around and become the new first element. For example, given: moveUp({"first", "second", "third", "fourth"}); You would return: {"fourth", "first", "second", "third"} in java
Import the ArrayList and List classes from the java.util package to create a list of phone numbers and also import the HashSet and Set classes from the java.util package to create a set of unique prefixes. Create a class called PhoneNumberPrefix with a main method that will contain the code to find the unique prefixes. Create a List called phoneNumbers and use the add method to add several phone numbers to the list. List<String> phoneNumbers = new ArrayList<>(); phoneNumbers.add("555-555-1234"); phoneNumbers.add("555-555-2345"); phoneNumbers.add("555-555-3456"); phoneNumbers.add("444-444-1234"); phoneNumbers.add("333-333-1234"); Create a Set called prefixes and use a for-each loop to iterate over the phoneNumbers list. For each phone number, we use the substring method to extract the first 7 characters, which represent the prefix, and add it to the prefixes set using the add method. Finally, use the println method to print the prefixes set, which will contain all of…
java using sets r maps Given an array of distinct integers, write a method called elementRank() thatreplaces each array element by its rank. The minimum array element has the rank1; the second minimum element has a rank of 2, etc. For example, calling themethod on array {18, 15, 3, 19, 2, 41, 10} will change it to {5, 4, 2, 6, 1, 7, 3}.Make sure you output the array after calling the method.
For Chapter 6, section 6 of the book the image shows, I'm trying to solve a true or false question. I was wondering if you can help solve them and provide an explanation. Thank you Throws an exception if an element is added when it is "full". Supports addition of elements at the front of the list, the end of the list, and anywhere in between. Can hold objects of any Java class. Has only O(1) operations, including its constructor. Provides more than one Iterator.
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Code Example 18-21. import tkinter as tk2. from tkinter import ttk3. class TipCalcFrame(ttk.Frame):4. def __init__(self, parent):5. ttk.Frame.__init__(self, parent, padding="20 20 20 20")6. self.pack()7. self.mealCost = tk.StringVar()8. self.tipPercent = tk.StringVar()9. self.tipAmount = tk.StringVar()10. ttk.Label(self, text="Cost of your meal:").grid( column=0, row=0, sticky=tk.E)11. ttk.Entry(self, width=30, textvariable=self.mealCost).grid( column=1, row=0)12. ttk.Label(self, text="Percent to leave as a tip:").grid( column=0, row=1, sticky=tk.E)13. ttk.Entry(self, width=30, textvariable=self.tipPercent).grid( column=1, row=1)14. ttk.Label(self, text="Tip amount:").grid( column=0, row=2, sticky=tk.E)15. ttk.Entry(self, width=30, textvariable=self.tipAmount,…
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Code Example 18-21. import tkinter as tk2. from tkinter import ttk3. class TipCalcFrame(ttk.Frame):4.      def __init__(self, parent):5.          ttk.Frame.__init__(self, parent, padding="20 20 20 20")6.          self.pack()7.          self.mealCost = tk.StringVar()8.          self.tipPercent = tk.StringVar()9.          self.tipAmount = tk.StringVar()10.         ttk.Label(self, text="Cost of your meal:").grid(                      column=0, row=0, sticky=tk.E)11.         ttk.Entry(self, width=30, textvariable=self.mealCost).grid(                      column=1, row=0)12.         ttk.Label(self, text="Percent to leave as a tip:").grid(                      column=0, row=1, sticky=tk.E)13.         ttk.Entry(self, width=30, textvariable=self.tipPercent).grid(                      column=1, row=1)14.         ttk.Label(self, text="Tip amount:").grid(                      column=0, row=2, sticky=tk.E)15.         ttk.Entry(self, width=30, textvariable=self.tipAmount,…
Implement the Plates class buildMap function so that it populates the HashMap with the state abbreviations as keys and the counts of how many each appear in the file as values. Sometimes, the parking attendant will add special notation to help her remember something about a specific entry. There are just non alphabetic characters that she adds to the state - your program should ignore these characters so that an entry like NY* still counts toward the NY plate count. She is also very inconsistent with how she enters the plates. Sometimes she uses upper case, sometimes lowercase, and sometimes she even uses a mix. Be sure to account for this in your program. Only add information for plates in New England (Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, and Connecticut). Plates.java import java.util.Arrays; import java.util.HashMap; import java.util.HashSet; import java.util.Map; import java.util.Set; public class Plates {     private Map<String, Integer> plateMap;…