1. Refactor the following code for encapsulation (information hiding). (5 points) FILL IN BLANKS on this side: For this incorrect class code on the left side: (provide answer on right by public class School refactoring) { public class School { String name; public String name; String id; pubic String id; String getName(){ String getName(){ return name; return name; } } String getld(){ return id; String getld({ } return id; } } }

1. Refactor the following code for encapsulation (information hiding). (5 points) FILL IN BLANKS on this side: For this incorrect class code on the left side: (provide answer on right by public class School refactoring) { public class School { String name; public String name; String id; pubic String id; String getName(){ String getName(){ return name; return name; } } String getld(){ return id; String getld({ } return id; } } }

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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Finish the Java code: Code: class Tile{char letter;int value; //ConstructorTile(char l, int v){letter = l;value = v;} //The function returns value of data member value.public int getValue(){return value;}//The function returns value of data member letter.public char getLetter(){return letter;} //the function return string for value and letterpublic String toString(){return(letter + " with value " + value);} //The function checks for equality of two objects.public boolean equals(Tile t){if(this.letter == t.letter && this.value == t.value)return true;elsereturn false;} } Output: The word HELLO is worth 8 points Its tile with the highest value is: H with value: 4 You have used a total of 5 tiles so far.
Part a) Create a Rectangle class. This class stores only the Cartesian coordinates of the four corners of the rectangle. 2,3 4,3 2,0 4,0 The constructor calls a set function that accepts four sets of coordinates and verifies that each of these is in the first quadrant with no single x- or y-coordinate larger than 20.0. The set function also verifies that the supplied coordinates do, in fact, specify a rectangle.(Hint is given for a shape to be rectangle) Part b) Provide member functions that calculate the length, width, perimeter, and area. The length is the larger of the two dimensions. Part c) Include a predicate function IsSquare that determines whether the rectangle is a square. (all sides are equal) and prints a message accordingly. Please attach your algorithm/steps you choose for your problem solution.
Note: The code is written you can just tell the explanation what is happening in the code Explain in English.Just explain the whole code. #include <iostream>using namespace std;class PrimeNumberGenerator{private:int counter;public://ConstructorPrimeNumberGenerator() : counter(0){}//Function to reset countervoid reset(){counter = 0;}int getCounter(){return counter;}//Function to return next prime number after currentPrimeint getNextPrime(){if(counter == 0){counter = 2;}else{for(int i = counter + 1; ; i++){if(isPrime(i)){counter = i;break;}}}return counter;} //Function to check if a number is prime or notbool isPrime(int num){for(int i = 2; i <= num/2; i++){if(num % i == 0)return false;}return true;}}; int main() {int option;PrimeNumberGenerator gen;cout << "Enter 1 if you want to reset\n";cout << "Enter 2 if you want to get next prime number\n";cout << "Enter -1 to quit: ";cin >> option;while(option != -1){if(option == 1){gen.reset();cout <<…
(2) Your member functions will be: Make sure that the mutators for height and width only take positive numbers! Test your class with the driver program given below. //--- Test driver for class Rectangle #include using namespace std; setHeight (int h): mutator for height variable setWidth (int w): mutator for width variable setDimensions (int h, int w): sets both height and width getArea (): returns the area of the rectangle getPerimeter () returns the perimeter of the rectangle print (): prints a rectangle with your dimensions composed of asterisks (3) Create a default constructor that sets the default values of Rectangle class to 1. int main() { Rectangle rec rec2; recl.setHeight (10); recl.setWidth (20); Page rec2.setDimensions (5, 10); cout of 2 ZOOM +
PLZ help wiith the following: IN JAVA If an inner class contains non static members, then the class name must be modified by the keyword: Final Static Void Protected
**please see question attached** (previous program below) #include <iostream>using namespace std;class House{//instance variablesprivate:string location;int price; public://constructorsHouse(){location = "TBD";price = 0;}House(string location,int price){this->location = location;this->price = price;}//Get and set methodsvoid setLocation(string location){this->location = location;}string getLocation(){return location;}void setPrice(int price){this->price = price;}int getPrice(){return price;} };//member functionvoid output(House a){cout <<"Location: " << a.getLocation()<<endl;cout <<"Price: "<<a.getPrice()<<endl;}int main(){House a("1234 qcc st, Bayside, NY",1000000);output(a);House b;output(b); return 0;}
Instructions-Java Assignment is to define a class named Address. The Address class will have three private instance variables: an int named street_number a String named street_name and a String named state. Write three constructors for the Address class: an empty constructor (no input parameters) that initializes the three instance variables with default values of your choice, a constructor that takes the street values as input but defaults the state to "Arizona", and a constructor that takes all three pieces of information as input Next create a driver class named Main.java. Put public static void main here and test out your class by creating three instances of Address, one using each of the constructors. You can choose the particular address values that are used. I recommend you make them up and do not use actual addresses. Run your code to make sure it works. Next add the following public methods to the Address class and test them from main as you go: Write getters and…
(Java) The Abstract Art Class Write an abstract class as follows: The class is named Art It inherits from the Comparable interface It has a private String member variable named name It has a private String member variable named artist It has a private int member variable called year It has a default constructor that assigns the values "No name" to name, "No artist" to artist and -1 to the year. This default constructor calls the three argument constructor. It has a three-argument constructor to assign values to the name, artist and year variables. It has a copy constructor that makes a copy of another non-null Art object It has getters and setters for the name, artist and year variables It has a toString() method that creates a string of artist, with name and year tabbed once on subsequent lines (see sample output) It has an equals method that compares this Art to another Object It has a compareTo method that compares in this order: 1) artist, 2) name, 3) year This class contains no…
5 (The Time class) Design a class named Time. The class contains: ■ Data fields hour, minute, and second that represent a time. ■ A no-arg constructor that creates a Time object for the current time. ■ A constructor that constructs a Time object with a specified elapse time since the middle of night, Jan 1, 1970, in seconds. ■ A constructor that constructs a Time object with the specified hour, minute, and second. ■ Three get functions for the data fields hour, minute, and second. ■ A function named setTime(int elapseTime) that sets a new time for the object using the elapsed time. Draw the UML diagram for the class. Implement the class. Write a test program that creates two Time objects, one using a no-arg constructor and the other using Time (555550), and display their hour, minute, and second. (Hint: The first two constructors will extract hour, minute, and second from the elapse time. For example, if the elapse time is 555550 seconds, the hour is 10, the minute is 19, and the…
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9. A university XYZ would like to have a system that will calculate grade for their students. Thus, you have been assigned to develop the system that requires student name and mark as an input to the system. The system will calculate the grade based on the following table. Grade Mark 0-39.9 40 - 59 60 - 70 71 - 80 81 - 100 F C A The example of the output as follows: : Jung Lee : 75 : Jeongmoon : 85.5 Enter a student name Enter a mark Enter a student name Enter a mark =====- ======= =====-== : Jung Lee : 75.0 Student name Mark Grade : B ===== =======-- ======== : Jeongmoon : 85.5 : A Student name Mark Grade ====