2. Consider the following class definitions: public class BClass private int x; public void set(int a) } x = a; { public void print() } System.out.print(x); public class DClass extends BClass private int y; public void set(int a, int b) I/Postcondition: x =a; y=b; { public void print() {..}
Q: (b) The class diagram below shows the relation of three classes of a program. The class Employee is…
A: #include <iostream>using namespace std; class Employee{ private: static int…
Q: Use the following partial class definitions to answer the questions a-c…
A: 1 a) following is true with respect to A1, A2 and A3? A2 and A3 are both subclasses of A1 A3 is a…
Q: Write a Java class Person for dealing with persons. Your class must have the following features:…
A: As per the requirement person class is developed. Note: As per our guidelines we are suppose to…
Q: 4. Create an interface Wheel with methods setWheels (int c) and getWheels () and a class Vehicle…
A: Solution: Given,
Q: Create a UML diagram to help design the class baby. class Baby{ //data members private String…
A: The required Unified Modeling Language (UML) class diagram for the class “Baby” is as follows,
Q: Write a class named Person with data attributes for a person’s name, address, and telephone number.…
A: Python program for the above problem is given below:-
Q: Write a Java class Person for dealing with persons. Your class must have the following features:…
A: class Person{ long person_id; String name,gender; //default constructor Person(){…
Q: rewrite the following class code to make employeeType as an abstract class, if you know that both…
A: In C++, an abstract class is one that contains one or more than one pure virtual function (a…
Q: Generate a UML class diagram for the class definition below. public class FuelOrder { public string…
A: A class diagram is used in designing a class.It represent the attributes, types, access specifier,…
Q: Define a class for complex numbers. A complex number is a number of the form a + b*i where for our…
A: #include<bits/stdc++.h>using namespace std; class Complex{ // attributes public: double…
Q: 1. Create an abstract class that stores data about the shapes e.g. Number of Lines in a Shape, Pen…
A: the code is given below :
Q: Classes and operator overloading Define a class for complex numbers. A complex number is a number of…
A: C++ Code:#include<iostream.h> #include<conio.h> class complex { int a,b;…
Q: Write a java program in which Animal: Create a class Animal and Add a protected data member named…
A: public abstract class Animal { protected int id; //default constructor public Animal() { this.id…
Q: Write a program that defines a class Employee with the following members as shown in the bellow UML…
A: Sample Response: //C++ program, tested on codeBlock IDE#include<iostream>using namespace…
Q: If class A is a subclass of class B, then A has access to all of B's instance variables, including…
A: Private data: A private data can be accesses within the class only. Private data not allowed to…
Q: . Exercise # 2: Implement a class Portfolio. This class has two objects, checking and saving, of the…
A: Here is the detailed and simplified python code for the above listed problem statement:
Q: create a uml class diagram on this code: class grey(object): def __init__(self, name):…
A: + in UML diagram refers to public members _ in UML diagram refers to protected members __ in UML…
Q: Describe some facts about public and private members of a class.
A: Public members of a class: The public class member will be available to everyone. The keyword…
Q: Q2. Write the definition of class Example as follows: 1. Three private instance variables x, y and…
A: Need to write Java program with following implementations : Define Example class with : 1. Three…
Q: The class diagram below shows an Order class that "has a" Customer and zero or more Items. Order…
A: The class diagram below shows an Order class that "has a" Customer and zero or more Items. Order…
Q: Draw the UML diagram of the following class:
A: There are three sections in the UML class diagram: Class: The first section contains the name of the…
Q: Given the following class declaration (with prototypes): class Carpet { private: double…
A: class Rectangle{ double l,b; Rectangle(double x,double y){ l=x; b=y; } }…
Q: In this Assignment you will use an abstract class to define, read, store, and print questions for a…
A: The objective is to write the code of program and create a class to define, read, store, and print…
Q: Consider the following class definition: (8) class base { public: void setXYZ(int a, int b, int c);…
A: a. Which member functions of the class base are protected? Answer: void setZ(int c) { z = c; }void…
Q: Given the following definitions: public abstract class Manager extends Employee { ... } public class…
A: Introduction: Class is one of the concepts in the object-oriented programming paradigm and it’s…
Q: Consider the following Country class: public class Country{ String Integer population; } name;…
A: Java code snippet for City.java : //(ii) implementing Comparable interface class City implements…
Q: Write a program that defines a class Employce with the following members as shown in the bellow UML…
A: print method will print all the information like name, id, salary
Q: // Defines a base class named Customer // And a child class FrequentCustomer who receives a…
A: According to the information given above:- We have to defines a base class named Customer Child…
Q: public abstract class Plant { } public abstract void breathe (); Consider the class shown above.…
A: Solution- Before solving this problem first need to under the concept of the abstract class.…
Q: Write the definition of the default constructor of YClass so that the instance variables of YClass…
A: public YClass() { this.a=0; this.b=0; }
Q: 1. An abstract class called Pet is defined below: public abstract class Pet { private String id;…
A: Dear Student, As no programming language is mentioned I am assuming it to be Java. The Cat class…
Q: class Point with instance variables as: xCoordinate(int) and yCoordinate(int). Write public instance…
A: Program code: Filename: Point class(PointClass.java) class PointClass{ private int xCoordinate;…
Q: Add a constructor for Animal class shown. The constructor should pass in a string parameter named…
A: Class constructor : Constructor is a special method of the class. The name of the constructor is…
Q: Base class A Base class B Private : int B_value; Private : int B_value; Protected: Protected:…
A: Sample Response: //C++ programming language, tested on CodeBlock IDE#include<iostream>using…
Q: When a concrete class inherits from an abstract class, you have to implement all abstract methods…
A: If we define any class an abstract class that means it contains some abstract or non abstract method…
Q: Write a class definition that creates a class called leverage with one private data member, crowbar,…
A: PROGRAM CODE: class leverage // start definition of class leverage{…
Q: Write a class sum: There are two abstract methods, the child class these must implement methods.…
A: Note: This is a multiple-question-based problem. As per company guidelines, only the first questions…
Q: use the following partial class definitions: public class A1 { public int x; private int y; public…
A: Given that, Which of the following lists of instance data are accessible in class A2?a) x, y, z, a,…
Q: Class Employee Employee -Name (string) -ID(integer) -Address(string) -Salary(double)…
A: Find the required code in java as language not specified given as below and output :
Q: public class Tire{ } public abstract class Vehicle {} public abstract class LandVehicle extends…
A: in line B, Vehicle is an abstract class, so it cant be instantiated, so this line will not work. in…
Q: public abstract class Building { } public abstract String increaseSize(); Consider the class shown…
A: The following question is in Java Programming Language and Uses the Concept of Java Extends.
Q: WRITE THE OUTPUT OF THE PROGRAM AND WRITE THE UML DIAGRAM OF THE PROGRAM : JAVA
A: Output: Item Number:112Name: BookQuantity: 3Price: 125.98Total Cost: 0.0Item Number:101Name:…
Q: Write only the appropriate classes definition for described below: Let's consider class Employee's.…
A: public class Employee{ //declaring instance variables private String firstName; private…
Q: 3. Add a "DateOfBirth" property to the given Person class, which is of type "DateTime". 1 using…
A: We use DateTime. today to find today's date And subtract it from the dob to get the age
Q: True or False, An abstract class must have at least one abstract method.
A: An abstract class is defined as a class which contains 0 or more abstract methods. If it contains…
Q: Complete the following program by writing the code at the in of "i" and "j" instance variables.…
A: class A1 { public static void main(String args[]) { Superclass sp= new Superclass() cout…
Q: Given the below program, explain why the bold text below is INVALID. abstract class Employee(…
A: Here in the given code, we have an abstract class named Employee with one abstract method…
Q: Base class A Base class B Private : Private : int B_value; int B_value; Protected: Protected:…
A: #include <iostream> using namespace std; class A { protected: int a;…
Q: Consider the following four classes and a main function below: class PoofyTaii { public: PoofyTail()…
A: Code: #include <iostream>using namespace std;class PoofyTail{ public:…
Q: Write an abstract class, it can be anything well defined from the very basics.
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
- For the following four classes, choose the correct relationship between each pair. public class Room ( private String m type; private double m area; // "Bedroom", "Dining room", etc. // in square feet public Room (String type, double area) m type type; m area = area; public class Person { private String m name; private int m age; public Person (String name, int age) m name = name; m age = age; public class LivingSSpace ( private String m address; private Room[] m rooms; private Person[] m occupants; private int m countRooms; private int m countoccupants; public LivingSpace (String address, int numRooms, int numoccupants) m address = address; new int [numRooms]; = new int [numOceupants]; m rooms %3D D occupants m countRooms = m countOccupants = 0; public void addRoom (String type, double area)2. Consider the following class definitions: public class BClass private int x; public void set(int a) { x = a; } public void print() System.out.print(x); } public class DClass extends BClass { private int y; public void set(int a, int b) //Postcondition: x =a; y=b; } public void print( ) {..} a. Write the definition of the print method of DClass that overrides it. b. Write the definition of the method set of the class DClass. ||Consider the following class definition: (8)class base{public:void setXYZ(int a, int b, int c);void setX(int a);int getX() const { return x; }void setY(int b);int getY() const { return y; }int mystryNum() { return (x * y - z * z); }void print() const;base() {}base(int a, int b, int c);protected:void setZ(int c) { z = c; }void secret();int z = 0;private:int x = 0;int y = 0;};a. Which member functions of the class base are protected?b. Which member functions of the class base are inline?c. Write the statements that derive the class myClass from classbase as a public inheritance.d. Determine which members of class base are private, protected,and public in class myClass.
- class Base { public: int x, y: public: Base(int i, int j) { x = i; y = j; }}; class Derived : public Base public: Derived (int i, int j) { x = i; y = j; void display() {cout « x <<" "<< y; }}; int main(void) { Derived d(5, 5); d.display(); return e; Error O X=5,Y=5 X-0,Y=0 None of the above Other:Consider the following class definition: (8) class base { public: void setXYZ(int a, int b, int c) ; voidsetX ( int a ) ; int getX ()const{returnx; } void setY ( int b ); intgetY()const{returny; } int mystryNum () {return ( x &*#x00A0;y - z &*#x00A0;z) ;} void print () const; base () } base(int a, int b, int c); protected: void setz ( int c) { z= c; } void secret(); int z= 0; private: int x= 0; int y = 0; }; a. Which member functions of the class base are protected? b. Which member functions of the class base are inline? c. Write the statements that derive the class myclass from class base as a public inheritance. d. Determine which members of class base are private, protected, and public in class myclass.class A {protected int x1,y1,z; public: A(a, b,c):x1(a+2),y1(b-1),z(c+2) { for(i=0; i<5;i++) x1++;y1++;z++;}}; class B {protected: int x,y; public: B(a,b):x(a+1),y(b+2) { for(i=0; i<5;i++) x+=2; y+=1;}}; class D:public B, virtual public A { private: int a,b; public: D(k,m,n): a(k+n), B(k,m),b(n+2),A(k,m,n) { a=a+1;b=b+1;}}; int main() (Dob(4,2,5);} what the values of x1,y1 and z
- QUESTION 15 public class numClass { private int a; private static int y = 10; public numClass(int newX) {a=newx; } public void set(int newx) { a=newx; y+=a; } public void setY(int newy) { y=newY; } public static int getY() { return y; } }// end of class public class output { public static void main(String[] args) { numClass one = new numClass(10); numClass two = new numClass (2); try{ one. sety(30); two.set(4); if(one.getY()==30) throw new Exception ("30"); one.setY(40); } catch (Exception e) { two.sety (50); } System.out.println(two.getY()); }// end of main } // end of classQuestion 15 1(8).png public class numClass { private int a; private static int y = 10; public numClass(int newx) {a-newx; } public void set(int newx) {a=newx; y+=a;} public void setY(int newY) {y-newY; } public static int getY() { return y; } // end of class Blank 1 Blank 1 Add your answer public class output[ public static void main(String[] args) { numclass one new numClass(10); numclass two new numClass (2); try{ one.sety(30); two.set(4); if(one.getY()-30) throw new Exception ("30"); one. sety (40); } catch(Exception e) { two.setY(50); } System.out.println(two.getY()); // end of main } // end of class ***Q 1: Access class members from the same package Note: ClassA and ClassB in this question are in the same package. public class ClassB { public int x = 1; int y = 2; private int z =3; } public class ClassA { public static void main(String[] args) { ClassB cb = new ClassB(); // System.out.print(cb.x); /* 1 */ // System.out.print(cb.y); /* 2 */ // System.out.print(cb.z); /* 3 */ } } 1.1- Which statement(s) are true? Choose all that apply. a. If statement 1 is uncommented, the code prints "1" to the output. b. If statement 2 is uncommented, the code prints "2" to the output. c. If statement 3 is uncommented, the code prints "3" to the output. .d. This code does not compile 1.2- Try to do the following: • Declare a character type variable myChar in the class ClassB, the variable myChar shouldn't be accessible through the object cb. Add a statement to the classA to test whether myChar is accessible.
- JAVA Language Caesar Shift Question: Modify the Caesar class so that it will allow various sized shifts to be used, instead of just a shift of size 3. (Hint: Use an instance variable in the Caesar class to represent the shift, add a constructor to set it, and change the encode method to use it.) import java.util.*; public class TestCipher { public static void main(String[] args) { int shift = 7; Caesar caesar = new Caesar(); String text = "hello world"; String encryptTxt = caesar.encrypt(text); System.out.println(text + " encrypted with shift " + shift + " is " + encryptTxt); } } abstract class Cipher { public String encrypt(String s) { StringBuffer result = new StringBuffer(""); // Use a StringBuffer StringTokenizer words = new StringTokenizer(s); // Break s into its words while (words.hasMoreTokens()) { // For each word in s…6. class PPP int H: protected : int S; public : void input (int); void out (); }; class Q0Q : private PPP int T; protected : int U; public : void indata (int, int); void outdata (); }; class RRR : public Q0Q int M; public : void disp (); }; int main () 002 objl; RRR obj2; return 0; a. In the above code, is the member function out() accessible by obj1? b. Name the member function(s), which can be accessed from the obj2? c. Name the data member(s) that can be accessed from function disp().public class Secret private int x; private static int y; public static int count; public int z; public Secret () } X ?t = 2 { public Secret (int a) } { public Secret (int a, int b) } { public String toString() return ("x = " count = " + count); { public static void incrementY () { { 54. How many constructors are present in the class definition above? C. 2 d. 3 b. 1 55. What does the default constructor do in the class definition above? a. Sets the value of x to 0 c. Sets the value of x to 0 and the value of z to 1 d. There is no default constructor. b. Sets the value of z to 1 56. Based on the class definition above, which of the following statements is illegal? Secret.incrementY (); b. Secret.count++3B a. c. Secret. 2++; d. None of these 13