Question 4: Elections rite an Election class, used to record votes. The class has the following methods: • vote(c) : records a vote for candidate c. • total_votes(): returns the total number of votes. • winner(): returns the set of candidates with maximal votes. Normally there is only one, but there could be a tie, in which case you re the set of tied candidates. Return None if no votes have been cast. • margin(): returns the margin of victory, that is, the number of votes separating the fist from the second candidate. This can be 0, ine of a tie. If there is only one candidate, you can answer with the number of votes for the candidate. If no votes have been cast, return

Question 4: Elections rite an Election class, used to record votes. The class has the following methods: • vote(c) : records a vote for candidate c. • total_votes(): returns the total number of votes. • winner(): returns the set of candidates with maximal votes. Normally there is only one, but there could be a tie, in which case you re the set of tied candidates. Return None if no votes have been cast. • margin(): returns the margin of victory, that is, the number of votes separating the fist from the second candidate. This can be 0, ine of a tie. If there is only one candidate, you can answer with the number of votes for the candidate. If no votes have been cast, return

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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Observer pattern The PhoneModel class stores a phone number as a list of digits, and the Keypad class has this method: public void simulateKeyPresses(int numKeyPresses)(0 that allows the user to enter digits one at a time then save each digit in the list. The Screen wants to respond to each key being entered. Make the model notify the observers whenever a new digit is entered for the phone number. The first observer prints the newest digit out to the screen The second observer prints "Now dialing 12345678901.." out to the screen (where the number is the number the model has). Only the Screen class can print to the screen The model must be decoupled from the Other classes.
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.is a block of code which only runs when it is called A classs integer method loop
Assignment: Enhancing Dice Roll Stats Calculator Program Introduction: The project involves creating a program to roll pairs of dice, gathering statistics on the outcomes. Probability differs in the roll of two dice compared to a single die due to varied combinations. Dice Roll Series: User greeted with "Welcome to the Dice Roll Stats Calculator!" and prompted to specify rolls. Java classes: DiceRoller, Indicator, Validator. DiceRoller: Arrays: rollSeries (captures results), statIndicators (stores statistical indicators). Constructor rolls dice as per user request. Methods collect stats and print the report. Indicator class: Contains dicePairTotal and dicePairCount. Displaying Results: Sort statIndicators array before display. Indicator objects sortable by dicePairCount (implements Comparable). Example output:-----------------------dicepair rolltotal count percent---- ------ --------7 5 50%10 2 20%4 2 20%2 1 10% Tasks:…
Assignment:The BankAccount class models an account of a customer. A BankAccount has the followinginstance variables: A unique account id sequentially assigned when the Bank Account is created. A balance which represents the amount of money in the account A date created which is the date on which the account is created.The following methods are defined in the BankAccount class: Withdraw – subtract money from the balance Deposit – add money to the balance Inquiry on:o Balanceo Account ido Date created
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Computer Science You are required to develop a small chatting application where two or more friends can communicate each other through messages. Create a class Message which has Date d, and message (string). Provide getters/setters, constructors, toString. Create a class Friend having String name, String contact, email and ArrayList of Messages provide getters/setters, constructors, toString addMessage(Message m) method which will add new message to the list. Provide following options to the user using JFrame. Login which will help user login to the application. View Friends (Display List of All Friends) View Messages ( This should display all message of a Friend) Send message (This should ask for friend name and message match the friend name and write that message to the array list).
Remove is a method that is defined.
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