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Chapter 13 Solutions
C++ Programming: From Problem Analysis to Program Design
- class A Q5: Correct the following code fragment and what will be the final results of the variable a and b { 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() {D ob(4,2,5);}arrow_forwardFix the errors in the Customer class and the Program. #include <iostream>#include <fstream>#include <string>using namespace std; class Customer {// Constructorvoid Customer(string name, string address) : cust_name(name), cust_address(address){acct_number = this.getNextAcctNumber();} // Accessor to get the account numberconst int getAcctNumber() { return acct_number; } // Accessor to get the customer namestring getCustName(} const { return cust_name; } // Accessor to get the customer addressstring getCustAddress() const { return cust_address; } // Set a customer name and addressstatic void set(string name, string address); // Set a customer addressvoid setAddress(string cust_address) { cust_address = cust_address; } // Get the next account number for the next customer.static const unsigned long getNextAcctNumber() { ++nextAcctNum; } // input operatorfriend Customer operator>> (istream& ins, Customer cust); // output operatorfriend void operator<<…arrow_forwardTrue or false ? Assuming class Quiz { public: void TakeIt ( ); }; Quiz cs2b_quiz; Quiz * p_quiz = & cs2b_quiz; The syntax to invoke TakeIt ( ) member function using the pointer is: p_quiz->TakeIt ( );arrow_forward
- For a non-constant member function of class Test, the this pointer has type: Select one: O a. const Test * const O b. Test * const O . Test const * O d. const Test *arrow_forwardSalesforce Assignment: You are working in company as a junior developer and the manger assign you a task to create the test class of trigger code of the following code will cover all the use case like insert, update, delete. The code is as follows: public class TriggerBasicAssignmentTriggerHelper ( // This method is used to update the vlaue of field C public static void getFiledvalue(List listofValues, Map mapofCoustomobject ){ for (Trigger_Basic_Assignments_ct :listofvalues){ if(mapofCoustomobject == null || t.Field_A_c != mapofCoustomobject.get(t.Id). Field_A_C || t.Field_8_c != mapofCoustomobject.get(t.I if(t.Operator_ '+') t.Field C_c = t.Field_A_c + t.Field_B_c; else if(t.Operator_c *') t. Field C_c = t.Field A_* t.Field_8_c; else if(t.Operator_c == /' && t.Field B_c != 0) t.Field C_c = t.Field A_c / t.Field_B_c; else t.Field C_c = t.Field_A_c - t.Field B_c; I need the test class only.arrow_forward# Coding - Simulate a robot Write a program that simulates the movements of a robot. The robot can have three possible movements: turn right turn left advance The robot is placed on a hypothetical infinite grid, facing a particular direction (north, east, south, or west) at a set of `{x,y}` coordinates,e.g., `{3,8}`, with coordinates increasing to the north and east. Create a Class `Robot` that contains a method `execute` which given a number of instructions will calculate the robot's new position, and the the direction in which it is pointing. ## Example The letter-string "RAALAL" means: Turn right Advance twice Turn left Advance once Turn left yet again Say a robot starts at `{7, 3}` facing north. Running this stream of instructions should leave it at `{9, 4}` facing west. ## Inputs and Outputs The argument of the `execute` is `string` in the format `X Y BEARING COMMANDS`. The method should return a one-liner `string` in the format `X Y BEARING`. In the…arrow_forward
- 1%V1 l 3G 50 Write the code in main to call function tostring(): package lab5; public class Lab5 { public static void main(String] args){ ) } class person{ private String name; public String getname(){ return name;} public void setname(String n){ name=n; } } class Employee extends person{ private int Employeeld; public int getEmployeeld(){return Employeeld;} public void setEmployeeld(int employeeld){ this.Employeeld=Employeeld; }} class faculty extends Employee{ private String rank; faculty(int Employeeld,String name,String rank) { super.setEmployeeld(Employeeld); super.setname(name); this.rank=rank; public String tosring({ return super.getname()+" "+super.getEmployeeld()+" "+this.rank; 88 التفاف النص أدوات لوحة المفاتيحarrow_forwardWhat am I doing wrong on this and how can I fix it? #include <iostream> #include <string> using namespace std; //declare Student Class class Student { //private member of class private: string Full_Name; float Student_GPA; int Student_Rank; //public class members public: //function to get student data void setStudentData(string studentName,float studentGpa,int studentRank) { this->Full_Name = studentName;this->Student_GPA = studentGpa;this->Student_Rank = studentRank; } //return student data function string getStudentData(string &studentName, float &studentGpa, int &StudentRank) { return Full_Name;return Student_GPA;return Student_Rank; } }; int main() { int Number_Student; //prompt user to enter total number of student cout << "Please input the total students: "; cin >> Number_Student; Student Info[Number_Student]; //variable declaration string studentName[20]; float studentGpa; int studentRank; //prompt user to enter name GPA and…arrow_forwardC++ in visual studio: Implement it completely with copy constructor, overloaded assignment operator and destructor. Then, in main, type an application that creates 2 numbers, sums them, and assigns the result to a new number. for example ; Number 1 (18,32) Number 2 (15.09) - - - - - - - - - - - + Number 3 ( 33,41)arrow_forward
- PROGRAMMING LANGUAGE: C++ // vectors: overloading operators example#include <iostream>using namespace std;class counter{private:int count;public:counter():count(0){}counter(int c):count(c) {} int get_count(){return count;} counter operator++ (int){return counter(count++); } counter operator-- (int){return counter(count--);}};int main(){counter c1, c2, c3;c1++;c2--;cout<<'\n'<<c1.get_count();cout<<'\n'<<c2.get_count();cout<<endl;c3 = c1++;cout<<'\n'<<c1.get_count();cout<<'\n'<<c3.get_count();getch();return 0;} Go through the above code and write the output of the given code segment. counter c1(5), c2(10), c3;c3=c1++;c2=--c3;;cout<<”\n”<<c1.get_count();cout<<”\n”<<c2.get_count();cout<<”\n”<<c3.get_count();arrow_forwardhelp me please: Write the definitions of the following functions: setWaitingTime getArrivalTime getTransactionTime getCustomerNumber of the class customerType defined in the section Application of Queues: Simulation //*************** customerType ************ void customerType::setCustomerInfo(int customerN, int arrvTime, int wTime, int tTime) { customerNumber = customerN; arrivalTime = arrvTime; waitingTime = wTime; transactionTime = tTime; } customerType::customerType(int customerN, int arrvTime, int wTime, int tTime) { setCustomerInfo(customerN, arrvTime, wTime, tTime); } int customerType::getWaitingTime() const { return waitingTime; } void customerType::incrementWaitingTime() { waitingTime++; }arrow_forwardC:/Users/r1821655/CLionProjects/untitled/sequence.cpp:48:5: error: return type specification for constructor invalidtemplate <class Item>class sequence{public:// TYPEDEFS and MEMBER SP2020typedef Item value_type;typedef std::size_t size_type;static const size_type CAPACITY = 10;// CONSTRUCTORsequence();// MODIFICATION MEMBER FUNCTIONSvoid start();void end();void advance();void move_back();void add(const value_type& entry);void remove_current();// CONSTANT MEMBER FUNCTIONSsize_type size() const;bool is_item() const;value_type current() const;private:value_type data[CAPACITY];size_type used;size_type current_index;};} 48 | void sequence<Item>::sequence() : used(0), current_index(0) { } | ^~~~ line 47 template<class Item> line 48 void sequence<Item>::sequence() : used(0), current_index(0) { }arrow_forward
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