Write a code in the main function that would call Function 1 and Function 3 of the Lab class. You can use values of your choice for function arguments (if required). Please write the output of these function calls. class Lab { int time; public: Lab(){ //Function 1 time = 120; cout << "Duration of lab is " << time << “minutes” << endl; } void Demonstration(){ //Function 2 cout << "Lab Demonstration started." << endl; } Lab(int duration){ //Function 3 time = duration; cout << "Duration of lab is " << time << “minutes” << endl; } ~Lab(){ //Function 4 cout << "Thanks. Lab has ended." << endl; }

Write a code in the main function that would call Function 1 and Function 3 of the Lab class. You can use values of your choice for function arguments (if required). Please write the output of these function calls. class Lab { int time; public: Lab(){ //Function 1 time = 120; cout << "Duration of lab is " << time << “minutes” << endl; } void Demonstration(){ //Function 2 cout << "Lab Demonstration started." << endl; } Lab(int duration){ //Function 3 time = duration; cout << "Duration of lab is " << time << “minutes” << endl; } ~Lab(){ //Function 4 cout << "Thanks. Lab has ended." << endl; }

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter6: User-defined Functions

Section: Chapter Questions

Problem 19PE

See similar textbooks

Similar questions

Write the function prototype of the void function named G() that takes an int reference parameter and two char parameters respectively Your answer
Please written by computer source How should each type of variable be passed to a function under the parenthesized situation? One answer will be used twice . Group of answer choices string (changes parameter) [ Choose ] double (doesn't change parameter) [ Choose ] user-defined class object (doesn't change parameter) [ Choose ] int (changes parameter) [ Choose ] options by value by reference (no const) by reference to constant object
Use Clojure to complete these questions: Please note that this is the beginning of the course so please use simple methods possible, thanks a. The built-in function type is useful for checking what kind of object an expression evaluates to. Write a function both-same-type? that takes two arguments, and returns true when they both have the same type, and false otherwise. b. Write a function list-longer-than? which takes two arguments: an integer n, and a list lst and returns true if lst has more than n elements, and false otherwise. For example, (list-longer-than? 3 '(1 2 3)) should return false, and (list-longer-than? 2 '(1 2 3)) should return true. c. See attached picture.
Given the Class Definition for ClockType discussed extensively in class, write what would have to be added to the FUNCTION DEFINITION for the Class ClockType to overload the “= =”, i.e., the comparison “equal-equal sign,” here: NOTE: In other words, WHAT WOULD BE ADDED TO THE CLASS DEFINITION ONLY? Note: ThePrivate Members are: int hr; // contains the hours int min; // contains the minutes int sec; // contains the seconds
For Assignment 5, you will design and write a program that covers the following topics: Functions, Vectors, Structures, and Classes. Functions & Passing Variables: Write a different function for each type of variable used. The functions should provide some sort of output through a cout or return value. Normal variable: Passing a variable by value to a paramater of a function. Show that this only makes a copy of the variable passed to it. Normal variable with a default value: Set a default value for a function parameter. Show how the default value gets used. Reference variable: Passing a variable by reference to a parameter of a function. Show how a reference variable can change the value of variable in main(). Show how the use of const can make a reference variable safer (think of it in terms of read/write). Pointer variable: Passing an address of a variable to a parameter of a function. Show how a pointer can change the value of a variable in main(). Show…
We're going to explore the law of large numbers here with a dice rolling program. Seed the random number generator with the current time and then roll three 6-sided dice (often described as 3d6) a total of 1,000,000 times and keep track of the number of times each sum 3 - 18 occurs. Be sure to separate all functions and methods (if you chose to use a class or structure) into both the prototype and an implementation below the main. 1. Build a regular c-type function that returns a random number between 3 - 18. This will simulate a single roll of three dice. Use the prototype: int rollDice(void);2. In the main, roll the dice 1,000,000 times and tally up the results in an array. I DO NOT want each individual roll printed to screen. Let the index represent the number rolled and the value will represent the number of times that number has been rolled. For example, a[3] = 5357 a[4] = 14750...a[18] = 4981 This array set-up will mean that the result 3 occurred 5,357 times and the…
Exercise 9-6: Pass by Reference and Pass by Address In this exercise, you use what you have learned about passing arguments by reference and by address to functions to answer Questions 1-2. 1. Given the following variable and function declarations, write the function call and the function's header a. double price 22.95, increase .10; void changePrice(doubl e&, double); b. double price 22.95, increase .10; void changePrice (double*, double); c. int age = 23; void changeAge(int&); d. int age 23; void changeAge (int*); 2. Given the following function headers and variable declarations, write a function call: a. custNames [] = {"Perez", "Smith", "Patel", "Shaw"}; balances [] = {34.00, 21.00, 45.50, 67.00); void cust (string name [], double bal []) b. int values [] = {1, 77, 89, 321, -2, 34}: void printSum (int nums [])
Please help me explain the following void function c++ code, which I did not understand. Especially for the first void function and int main(), I do not understand why the first void function enter the number and the int main function print out the final answer. #include <iostream>using namespace std; void getNumber(int *input); void doubleValue(int *val); int main(){ int number; getNumber(&number); doubleValue(&number); cout<<"That value doubled is"<<number<<endl; return 0;}void getNumber(int *input){ cout<<"Enter an integer number:"; cin>>*input; }void doubleValue(int *val){ *val *=2;}
Write the definition of a void function that takes as input two integer values, say n and m. The function returns the sum and average of all the numbers between n and m (inclusive) .
Give an example from your own idea, of a program that use a void function (does not return avalue), based on your understanding. (You must include a main function)
A function has different forms such as function call ,declaration, definition .in your opinion which form of function is called prototype and why?
Write a function named product that takes two int parameters and returns the product of those two integers. Here is an example: int n = product(7, 5); // n is 35 We are providing a test framework that, if you wish, you may use with a compiler to test your function. What you will submit as your answer to this problem is only the product function. Do not submit things like the #include lines or a main routine. If we take the code you write in the space below and insert it into the program, the resulting program must build without compilation errors (mere warnings are allowed). You do not need to write comments in the code; we will not look at any comments. Here is the test framework that you may copy and paste into a C++ source file. For your own testing purposes, you might add additional tests in the main routine, although you won't be turning them in, of course. #include <iostream> #include <cassert> using namespace std; // SUBMIT AS YOUR ANSWER ONLY THE CODE BETWEEN THIS…