- in the following program what will be the final results of the variable: x and count? class testl{ private: int count, x=0; public: testl(): count(0) {} testl (int c): count(c) {x+=3;} testl operator + (int) {x++; return test1(count++); } }; int main() {test1 L1; Ll++; return 0;}

- in the following program what will be the final results of the variable: x and count? class testl{ private: int count, x=0; public: testl(): count(0) {} testl (int c): count(c) {x+=3;} testl operator + (int) {x++; return test1(count++); } }; int main() {test1 L1; Ll++; return 0;}

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

See similar textbooks

Similar questions

THIS NEEDS TO BE DONE IN C#! NOT JAVA! NOT C++, NOT PYTHON! PLEASE WRITE THIS IN C#! Take the following class: class Pokemon { string Name; string Type; int Health; } Override the ToString method so that it it outputs the Pokemon's heath. Example: Let's say we have a Pikachu named Sparky and it had 200 health. When we called ToString, we would get the following string: Rex: Pikachu (200)
import java.util.Scanner;/** This program computes the time required to double an investment with an annual contribution.*/public class DoubleInvestment{ public static void main(String[] args) { final double RATE = 5; final double INITIAL_BALANCE = 10000; final double TARGET = 2 * INITIAL_BALANCE; Scanner in = new Scanner(System.in); System.out.print("Annual contribution: "); double contribution = in.nextDouble(); double balance = INITIAL_BALANCE; int year = 0; // TODO: Add annual contribution, but not in year 0 do { year++; double interest = balance*(RATE/100); balance = (balance+contribution+interest); } while(balance< TARGET); System.out.println("Year: " + year); System.out.printf("Balance: %.2f%n", balance); }}
What is the output of the following code with explanation:- class Teacher { public Teacher() { System.out.println("Teacher class constructor called"); } } public class Student extends Teacher { public Student() { System.out.println("Student class constructor called"); } public static void main (String args[]) { Student s = new Student(); } }
This code will be used to answer the question at the bottom. public class AccountBalance {private long accountNumber;private String ownersName;private double balance;public AccountBalance(long accountNumber, String ownersName, double balance) {this.accountNumber = accountNumber;this.ownersName = ownersName;setBalance(balance);}public long getAccountNumber() {return accountNumber;}public void setAccountNumber(long accountNumber) {this.accountNumber = accountNumber;}public String getOwnersName() {return ownersName;}public void setOwnersName() {this.ownersName = ownersName;}public double getBalance() {return balance;}public void setBalance(double balance) {if (balance < 0) {System.out.println("Balance Cannot be Negative.");balance = 0;}this.balance = balance;}}class CheckingAccount extends AccountBalance{CheckingAccount(long a, String b, double c){super(a,b,c);displayAccount();}public boolean deposit(double a) {if(a<=0)System.out.println("Invalid…
Reuse your Car class . In a main, build an object of that class, and print out the object using System.out.println(). Notice that this simply reports the memory address of the object in question, and we’d like to do something more useful. To replace (or override) the toString (or equals) function. Now, build a toString function that prints out the make, model, and odometer reading for a vehicle object. public class Car { //instance variables private int odometer; private String make; private String model; //overloading //constructors public Car(int odometer,String make, String model) { this.odometer = odometer; this.make = make; this.model = model; } public Car(String make, String model) { this.make = make; this.model = model; } public Car(String make) { this.make = make; } /* *getter & setter methods */ public int getOdometer() { return odometer; } public void…
Determine the output for the following code. Box in your final output result. public class Beta extends Baap { public int h = 44; public int getH( ) { System.out.println("Beta " + h); return h; } public static void main(String[ ] args) { Baap b = new Beta(); System.out.println(b.h + " " + b.getH( )); Beta bb = (Beta) b; System.out.println(bb.h + " " + bb.getH( )); } } public class Baap { public int h = 4; public int getH( ) { System.out.println("Baap " + h); return h; } }
Python Question CONDITIONS: Write the CSEStudent class with the required methods to give the following outputs as shown.Hints: 1. Each course has 3 credits. 2. GPA = sum( per course grade * per course credit) / sum(credit attended in that semester) 3. Grading policy: mark>=85: 4.0 ; 80<=mark<=84: 3.3;70<=mark<=79:3.0 ;65<=mark<=69: 2.3; 57<=mark<=64:2.0 ; 55<=mark<=56:1.3; 50<=mark<=54:1.0; >50:0.0 DRIVER CODE: class Student: def __init__(self,name,ID): self.name = name self.ID = ID def Details(self): return "Name: "+self.name+"\n"+"ID: "+self.ID+"\n" #Write your code here Bob = CSEStudent("Bob","20301018",”Fall 2020”) Carol = CSEStudent("Carol","16301814",”Fall 2020”) Anny = CSEStudent("Anny","18201234",”Fall 2020”) print("#########################") print(Bob.Details()) print("#########################") print(Carol.Details()) print("#########################") print(Anny.Details()) print("#########################")…
Java Questions - (Has 2 Parts). Based on each code, which answer out of the choices "A,B,C,D,E" is correct. Each question has one correct answer. Thank you. Part 1 - 3. Given the following code, the output is __. class Base { private int x = 5; }class Derived extends Base { x = 6; }public class Sample { public static void main(String[] args) { int x = 7; Derived d1 = new Derived(); System.out.print(d1.x); }} A. 0B. 5C. 6D. 7E. Error message Part 2 - 4. A class Animal has a subclass Mammal. Which of the following is true? A. class Animal extends Mammal { }B. class Mammal extends Animal { }C. class Animal implements Mammal { }D. class Mammal implements Animal { }E. class Mammal { Animal a1 = new Animal(); }
I need help with this Java Problem as described in the image below: public class Person { private int ageYears; private String lastName; public void setName(String userName) { lastName = userName; } public void setAge(int numYears) { ageYears = numYears; } // Other parts omitted public void printAll() { System.out.print("Name: " + lastName); System.out.print(", Age: " + ageYears); }}// ===== end ===== // ===== Code from file Student.java =====public class Student extends Person { private int idNum; public void setID(int studentId) { idNum = studentId; } public int getID() { return idNum; }}// ===== end ===== // ===== Code from file StudentDerivationFromPerson.java =====public class StudentDerivationFromPerson { public static void main(String[] args) { Student courseStudent = new Student(); /* Your solution goes here */ }}
Assume that you are applying “testing” and “inspection”, the two defect finding methods in the following buggy code example to find defects. Explain how “testing” and “inspection” differ in finding defects quickly and the efforts required for the example. public class Employee { private String id; private int name; private double salary; public Employee(String id,int name,double salary) { } public Employee() { } } Public class Customer { public static void main(String s[]) { Employee e1=new Employee(“10060OTU”, “S1”, 2000.50); Employee e2=new Employee(); System.out.println (“The salary of Employee S1 is”+ e1.salary); }
Write the code in java and please dont plagarise or copy from other sources and read the question carefully. In the question it says assignment 2 question 5 account class code. Here is the code: import java.util.Date; public class Account { private int id; private double balance; private static double annualInterestRate = 0.012; private Date dateCreated; public Account () { this (0, 0); } public Account (int id, double balance) { this.id = id; this.balance = balance; this.dateCreated = new Date (); } public int getId () { return id; } public void setId (int id) { this.id = id; } public double getBalance () { return balance; } public void setBalance (double balance) { this.balance = balance; } public static double getAnnualInterestRate () { return annualInterestRate; } public static void setAnnualInterestRate (double annualInterestRate) { Account.annualInterestRate = annualInterestRate; } public Date…
Consider the following class declaration and variable definitions, then answer the following questions. #include <stdio.h> class A { private: class B { public: B() { x = 1; } int x; int& getx() { return x; } void print() { printf(“%d”,x); } }; private: B b; public: class C { private: int w; public: C() { w = 5; } B b; int &getw() { return w; } void print() { b.print(); printf(“%d”,w); } }; C c; void print() { b.print(); c.print(); } int& getx() { return b.getx(); } }; Assume each code snippet in each row below runs independently in a main function. For each one, say whether it's legal code or not. If it is, show the output and explain why it happens. If it’s illegal (e.g. syntax error), explain why. Try to do it without running the code, and then check and correct your answers as needed. # Code snippet Errors? (Yes or No) Output or explanation of error. 1…