Question 9 Which XXX will avoid a memory leak? class MyClass { public: MyClass(); int value; private: int *ptr; }; MyClass::MyClass () { ptr = new int; *ptr = 0; delete ptr; } int main() { int value = 100; int *ptr1= new int; //XXX ptr1 = &value; O delete value O delete MyClass O delete ptr1 O delete ptr

Question 9 Which XXX will avoid a memory leak? class MyClass { public: MyClass(); int value; private: int ptr; }; MyClass::MyClass () { ptr = new int; ptr = 0; delete ptr; } int main() { int value = 100; int *ptr1= new int; //XXX ptr1 = &value; O delete value O delete MyClass O delete ptr1 O delete ptr

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

C# Solve this error using System; namespace RahmanA3P1BasePlusCEmployee { public class BasePlusCommissionEmployee { public string FirstName { get; } public string LastName { get; } public string SocialSecurityNumber { get; } private decimal grossSales; // gross weekly sales private decimal commissionRate; // commission percentage private decimal baseSalary; // base salary per week // six-parameter constructor public BasePlusCommissionEmployee(string firstName, string lastName, string socialSecurityNumber, decimal grossSales, decimal commissionRate, decimal baseSalary) { // implicit call to object constructor occurs here FirstName = firstName; LastName = lastName; SocialSecurityNumber = socialSecurityNumber; GrossSales = grossSales; // validates gross sales CommissionRate = commissionRate; // validates commission rate BaseSalary = baseSalary; // validates base…
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().
class implementation file -- Rectangle.cpp class Rectangle { #include #include "Rectangle.h" using namespace std; private: double width; double length; public: void setWidth (double); void setLength (double) ; double getWidth() const; double getLength() const; double getArea () const; } ; // set the width of the rectangle void Rectangle::setWidth (double w) { width = w; } // set the length of the rectangle void Rectangle::setLength (double l) { length l; //get the width of the rectangle double Rectangle::getWidth() const { return width; // more member functions here
Activity - Abstract Class An English teacher wants to find assessment mark of all the students in his course. Write a java program to find assessment mark of the students using following instructions. Save the project/file as StudentAbstract. A) Abstract Class name: Assessment Abstract Member Method: - to calculate and return total score totalScore() B) Class name: English extends Assessment Member variables: QuizMark, PracticeTest, ListeningMark Member Method : - Constructor to initialize member variables - to calculate and return total score totalScore QuizMark + PracticeTest*0.25 + %3D ListeningMark/2 C) Controlling class : StudentAbstract - To create an object of English class - To print totalScore of the English
Computer Science hand.javapackage poker; import com.google.gson.Gson;import com.google.gson.GsonBuilder;import poker.Card; public class Hand{//private transient int i=10;// marked transient they will not serialized / deserialized public Card[] cards; public Hand(){} public boolean is_better_than(Hand H){return false;} public boolean is_equal(Hand H){return false;}} card.javapackage poker; public class Card{public enum Suite{HEARTS,CLUBS,DIAMONDS,SPADES} public enum Value{ACE,TWO,THREE,FOUR,FIVE,SIX,SEVEN,EIGHT,NINE,TEN,JACK,QUEEN,KING} public Suite suite;public Value value; public Card(){ }} // main.java import com.google.gson.Gson;import com.google.gson.GsonBuilder;import poker.Hand;import poker.Card; public class Main{ public static void main(String[] args){// this function is provided as a convenient way to// run the code from the command line.//// it will not be graded, but it needs to compile and// execute without a failure. System.out.println("Start"); // Demonstrate…
class IndexItem { public: virtual int count() = 0; virtual void display()= 0; };class Book : public IndexItem { private: string title; string author; public: Book(string title, string author): title(title), author(author){} virtual int count(){ return 1; } virtual void display(){ /* YOU DO NOT NEED TO IMPLEMENT THIS FUNCTION */ } };class Category: public IndexItem { private: /* fill in the private member variables for the Category class below */ ? int count; public: Category(string name, string code): name(name), code(code){} /* Implement the count function below. Consider the use of the function as depicted in main() */ ? /* Implement the add function which fills the category with contents below. Consider the use of the function as depicted in main() */ ? virtualvoiddisplay(){ /* YOU DO NOT NEED TO IMPLEMENT THIS FUNCTION */ } };
Python programming language.