5. Given the definitions of class x (Figure 3) and class Y (Figure 4) below, class x { private int d: public x(int c) { 7 public int f(){ 10 int a - d + 1; 11 return a; 12 Figure 3 class Y extends private int public Y(int s, t) { int super (s): g - t: 10 O public int h() { 11 int a: 12 a = g-1; 13 return a: 14 15 Figure 4 34

5. Given the definitions of class x (Figure 3) and class Y (Figure 4) below, class x { private int d: public x(int c) { 7 public int f(){ 10 int a - d + 1; 11 return a; 12 Figure 3 class Y extends private int public Y(int s, t) { int super (s): g - t: 10 O public int h() { 11 int a: 12 a = g-1; 13 return a: 14 15 Figure 4 34

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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Similar questions

6. Given: class Pet { public: virtual void eat() { cout eat(); } What is the result of compiling and running the above program? m. The program compiles and crashes when it runs. i. The program compiles and runs, printing "Pet::eat" j. The program compiles and runs, printing "Cat::eat" The program compiles and runs to completion without printing anything. n. o. None of the above. k. The program fails to compile because the method eat is not marked virtual in Cat. I. The program fails to compile for some other reason.
5) Consider the Clock class, which represents the passage of time. The tick() method adds one minute to the time on the clock. public class Clock ( public Clock () public void setHour (int x) (hour - x; } public void setMin (int x) public int getHour () public int getMin () (hour - minute = 0;} {minute - X: } (return hour; } (return minute; } public void tick () ++minute: if (minute >= 60) (minute minute 60; ++hour: hour hour 8 121 private int hour; private int minute; b) Write an overload method tick(int x) which adds x seconds to the time on the clock. Note that x might be greater than 60.
use the following partial class definitions:public class A1{public int x;private int y;public int z;…}public class A2 extends A1{public int a;private int b; …}public class A3 extends A2{private int q;…} 2) Which of the following lists of instance data are accessible in class A2?a) x, y, z, a, bb) x, y, z, ac) x, z, a, bd) z, a, be) a, b
Consider the following class: class Complex { double x, y; public: Complex(double newX, double newY) { x = newX; y = newY; Complex operator+(const Complex& c) { Complex temp; temp.x = this->x + c.x; temp.y = this->y + C.y; return temp; } friend ostream& operator<< (ostream& out, const Complex& c) { out << c.x << " + " << c.y << '"i"; return out; } }; Let the following objects be defined: Complex a(1, 2); Complex b(3, 4); Complex c = a + b; What is the output of the statements below?
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Given the following class definition,public class Pen{ private String name; public Pen(String n) { name = n; } @Override public String toString() { return this.name + "-"; }}public class Brush extends Pen{ private int ink; public Brush(String n, int m) { super(n); ink = m; } @Override public String toString() { return super.toString() + this.ink + "-"; }}What is the output of the following program? Brush fluffy = new Brush("Fluffy", 5); System.out.print(fluffy);If there is no output, please specify "nothing" (no quotes) in the blank for the output. No hand written and fast answer with explanation
Find the error(s) in the following class definition: public class TestClass private int value1; private int value2; public void TestClass(int num1, int num2) { value1= num1; value2 = num2; }
13) 0101011111 010101010101 1101010101 01100 Read the following class definition and answer afterword: class Student { public: Student() {}; Student(int ID, string name, string university){ m_university = university; cam Student:ID = ID; Student::name = name; }; string getUniName() {return m_university;} string getStudentName() {return m_name;} void print() { cout << "Student ID is: "<
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Base class A Base class B Private : int B_value; Private : int B_value; Protected: Protected: Public: Public: void A_input() void A get() void B_input() void B_ get() Driver Class C: public A, public B C is a derived class from classes A and B Private: int D_value; Protected: Public: void difference() void A_get() void B_ get () void A input () void B get () // Enter the integer value of class A // Return value of int B_value void A get () void difference() // Return value of int A_value IlCcalculate the difference between the two value (D = A_value - B_value) void B input ( // Enter the integer value of class B
Consider the following classes: public class Animal { public Animal(String itsName) { name = itsName; } public void setName(String itsName) { name = itsName; } public String getName() { return name; } private String name; } public class Dog extends Animal { public Dog(String itsName) { super(itsName + “Dog”); sound = “Bark!”; } public void setSound(String itsSound) { sound = itsSound; } public String getSound() { return (getName(0) + sound); } public String getName(int choice) { if(choice > 0) return super.getName(); else return “AnyDog”; } public String getName() { return super.getName() + “OK”; } private String sound; } In addition, the following lines of code has been placed in a main class public static void main(String[] args) { Animal a1 = new Animal(“Tweety”); Animal a2 = new Dog(“Rover”); Dog d1 = new Dog(“Spot”); . . . . } Give the values of the following expressions. If an expression is erroneous,…
Consider the following classes Package p1; Package p2; Package p2; Package p1; public class C1{ public class C2{ public class C3 { public class C4 extends C3{ public double age3; private String name; protected double salary; String major; void find(X void serach(){ void claculate(){ void compute(){ a) What are the methods that can access the variable age. b) What are the methods that can access the variable name. c) What are the methods that can access the variable salary. d) What are the methods that can access the variable major