(2) Your member functions will be: setHeight (int h): mutator for height variable setWidth (int w): mutator for width variable setDimensions (int h, int w): sets both height and width getArea (): returns the area of the rectangle getPerimeter () returns the perimeter of the rectangle print (): prints a rectangle with your dimensions composed of asterisks (3) Create a default constructor that sets the default values of Rectangle class to 1. Make sure that the mutators for height and width only take positive numbers! Test your class with the driver program given below. //--- Test driver for class Rectangle #include using namespace std; int main() { Rectangle recl, rec2; recl.setHeight (10); recl.setWidth (20); rec2.setDimensions (5, 10); cout << "This is the first rectangle: \n"; cout << "Area: " << recl.getArea() <<", Perimeter " << reci.getPerimeter () << endl; recl.print (); cout << "This is the second rectangle: \n"; cout << "Area: " << rec2.getArea() <<", Perimeter " << rec2.getPerimeter () << endl; rec2.print (); return 0; L

(2) Your member functions will be: setHeight (int h): mutator for height variable setWidth (int w): mutator for width variable setDimensions (int h, int w): sets both height and width getArea (): returns the area of the rectangle getPerimeter () returns the perimeter of the rectangle print (): prints a rectangle with your dimensions composed of asterisks (3) Create a default constructor that sets the default values of Rectangle class to 1. Make sure that the mutators for height and width only take positive numbers! Test your class with the driver program given below. //--- Test driver for class Rectangle #include using namespace std; int main() { Rectangle recl, rec2; recl.setHeight (10); recl.setWidth (20); rec2.setDimensions (5, 10); cout << "This is the first rectangle: \n"; cout << "Area: " << recl.getArea() <<", Perimeter " << reci.getPerimeter () << endl; recl.print (); cout << "This is the second rectangle: \n"; cout << "Area: " << rec2.getArea() <<", Perimeter " << rec2.getPerimeter () << endl; rec2.print (); return 0; L

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

int class Inventory { std::vector<Item*> m_Items; static unsigned int m_ItemsMade; void CreateItem() { std::string name = "Item " + std::to_string(m_ItemsMade); m_Items.push_back(new Item(name.c_str(), 100 * m_ItemsMade)); ++m_ItemsMade; } public: Inventory() { CreateItem(); CreateItem(); CreateItem(); } void Print() const { size_t* nSize = new size_t(m_Items.size()); std::cout << "_____INVENTORY_____\n"; for (unsigned int i = 0; i < *nSize; ++i) { m_Items[i]->Print(); } } }; GetValidatedInt(const char* strMessage, int nMinimumRange = 0, int nMaximumRange = 0); This function should first display the provided message to the screen then use cin to get an int from the user. Error check and validate to ensure a legal integer was entered. If not, clear the cin buffer using clear() and ignore() and try again (Note: the buffer still needs to be cleared even if this step was successful). If a legal integer was entered, check its value to see if it is within the…
When an array is passed as a parameter to a method, modifying the elements of the array from inside the function will result in a change to those array elements as seen after the method call is complete. O True O False
Q1 function myFunc() { let a = 10; if (true) { Q3 } } let a = 5; console.log(a); Q4 console.log(a); Q2 const square = num => num * num; console.log(square(3) + 5); myFunc(); let x = 30; let y "200"; console.log(x+y); const nums = [10, 20, 8, 17]; nums.filter(e=> e > 10); console.log(nums); Q5 const nums = [30, 35, 42, 20, 15]; console.log(nums.every (num => num > 20)); January 15
check_game_over(): as the name suggests, this function should check to see if the game is over (if one side has no stones left in all of its pockets). It takes as an argument the game board and should return True if the game is over and False otherwise.
int getUpperScore(){ int upperScore = 0; for(int i = ONES; i <= SIXES; i++){ upperScore += score[i]; } return upperScore + getBonusScore(); } //Returns the score of the upper part of the board int getLowerScore(){ int lowerScore = 0; for(int i = THREE_OF_KIND; i <= YAHTZEE; i++){ lowerScore += score[i]; } return lowerScore; } //Returns the bonus points int getBonusScore(){ const int UPPER_SCORES_THRESHOLD = 63; const int BONUS_POINTS = 35; if(getUpperScore() >= UPPER_SCORES_THRESHOLD){ return BONUS_POINTS; } return 0; } //Returns the total score int getTotalScore(){ return getUpperScore() + getLowerScore(); } Test 10: Check upper board and having bonus correctly (0/3) failed
1. Square Roots Create a class with a method that, given an integer, returns an array of double-precision floating point numbers (known in Java as double), each of which is a square root of a number between 2 and the parameter to the method. For example, if the parameter is 5, the method should return an array of 4 doubles, with approximate values 1.4142135623, 1.7320508075, 2.0, and 2.2360679774. Your method should check the validity of the parameter, and take appropriate action if the parameter is invalid. 2. Reading Files Create a class with a method that, given a string representing a file name, returns an integer with the number of characters in the file. For example, if the file has 10 characters, your method must return the number 10. 3. Main Class Create a class HW1.java with a main method that does both of the following: calls the method from part 1 with a random integer between 0 and 10, and prints each of the numbers in the result. The numbers should all be printed on the…
struct remove_from_front_of_vector { // Function takes no parameters, removes the book at the front of a vector, // and returns nothing. void operator()(const Book& unused) { (/// TO-DO (12) ||||| // // // Write the lines of code to remove the book at the front of "my_vector". // // Remember, attempting to remove an element from an empty data structure is // a logic error. Include code to avoid that. //// END-TO-DO (12) /||, } std::vector& my_vector; };
FaceUp card game In this assignment we will implement a made-up card game we'll call FaceUp. When the game starts, you deal five cards face down. Your goal is to achieve as high a score as possible. Your score only includes cards that are face up. Red cards (hearts and diamonds) award positive points, while black cards (clubs and spades) award negative points. Cards 2-10 have points worth their face value. Cards Jack, Queen, and King have value 10, and Ace is 11. The game is played by flipping over cards, either from face-down to face-up or from face-up to face-down. As you play, you are told your total score (ie, total of the face-up cards) and the total score of the cards that are face down. The challenge is that you only get up to a fixed number of flips and then the game is over. Here is an example of the output from playing the game: FACE-DOWN | FACE-DOWN | FACE-DOWN | FACE-DOWN | FACE-DOWN Face up total: 0 Face down total: -5 Number of flips left: 5 Pick a card to flip between 1…
CODING LANGUAGE: R (similar to python) R is a programming language for statistical computing and graphics supported by the R Core Team and the R Foundation for Statistical Computing. The Behdel TestThe Bechdel test asks whether a work of fiction features at least two women who talk to each otherabout something other than a man, and there must be two women named characters.In this mini analysis we work with the data used in the FiveThirtyEight story titled:"The Dollar-And-Cents Case Against Hollywood's Exclusion of Women"https://fivethirtyeight.com/features/the-dollar-and-cents-case-against-hollywoods-exclusion-of-women/Start with loading the packages: fivethirtyeight, tidyverse1. What information does this dataset contain? What commands did you use to see this?For our purposes of analysis we will focus our analysis on movies released between 1990 and 2013.bechdel90_13 <- bechdel %>%filter(between(year, 1990, 2013))2. How many movies are in our filtered data set?The…
✓ Exercises Exercise: Write a method _ and _ that computes the region representing the intersection of two regions. Exercise: Write a method _contains__, which checks whether a n-dimensional point belongs to the region. Remember, a point belongs to the region if it belongs to one of the rectangles in the region. ✓ Membership of a point in a region #@title Membership of a point in a region def region_contains (self, p): ### YOUR SOLUTION HERE Region._contains = region_contains [ ] # Tests 10 points. assert (2, 1) in Region (Rectangle((0, 2), (0, 3)), Rectangle((4, 6), (5,8))) assert (2, 1) not in Region (Rectangle((0, 1), (0, 3)), Rectangle((4, 6), (5, 8))) Exercise: Write a method _le_ for regions such that R <= S if the region R is contained in the region S. You can test this by checking that the difference between R and S is empty.
private Vector location;private Vector velocity;private Vector acceleration;private int lifespan;private static final int MAX_LIFESPAN = 25;private static final int RADIUS = 7; public boolean isAlive() { } public void update() {//code here} Using java, if particle is alive then add velocity vector to location vector, add acceleration vector to velocity vector, and decrement lifespan by 1. Thank you.
What does the function f do? struct Point2D { double x; double y; struct Triangle { Point2D v1; Point2D v2; Point2D v3; }; void f(Triangle&t) { } int temp = 12.5; temp = t.v1.x; t.v1.x = t.v1.y; t.v1.y = temp; } int main () { Triangle mytri; mytri.v1.x = 1.0; mytri.v1.y = 22.5; f (mytri); Swaps values of x and y in vertex 1 of an argument of type Triangle Initializes value of x in vertex 1 of an argument of type Triangle Sets all x,y values in all vertices of an argument of type Triangle Swaps value of x in vertex 1 with value of x in vertex 2, for an argument of type