Giving the following code class Rectangle: definit__(self. 1. w): self.length=1 self.width = w def rectangle_area(self): return self.length*self.width def rectangle perimeter(self): return (self.length+self.width) 2 RI= Rectangle(20, 12) print(R1.rectangle_area()) print(R1.rectangle perimeter()) R2= Rectangle(200, 112) print(R2.rectangle_area()) Answer the questions 1) How many classes we have on the above example 2) What is the role of the method __init__(.....) 3) How many methods are defined 4) How many objects are created 5) How we invoke any method. Cite an example from the above code 6) Instanciate 2 rectangles using your Rectangle class

Giving the following code class Rectangle: definit__(self. 1. w): self.length=1 self.width = w def rectangle_area(self): return self.length*self.width def rectangle perimeter(self): return (self.length+self.width) 2 RI= Rectangle(20, 12) print(R1.rectangle_area()) print(R1.rectangle perimeter()) R2= Rectangle(200, 112) print(R2.rectangle_area()) Answer the questions 1) How many classes we have on the above example 2) What is the role of the method init(.....) 3) How many methods are defined 4) How many objects are created 5) How we invoke any method. Cite an example from the above code 6) Instanciate 2 rectangles using your Rectangle class

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

CLASS AND OBJECT Write a program which calculates:| a. An area of a rectangle (length x width), perimeter of a rectangle 2 x (length + width)
Giving the following code class Rectangle:def __init__(self, l, w):self.length = l self.width = w def rectangle_area(self): return self.length*self.widthdef rectangle_perimeter(self): return (self.length+self.width)*2R1 = Rectangle(20, 12) print(R1.rectangle_area()) print(R1.rectangle_perimeter()) R2 = Rectangle(200, 112) print(R2.rectangle_area()) Answer the questions1) How many classes we have on the above example2) What is the role of the method __init__(....... ) 3) How many methods are defined 4) How many objects are created5) How we invoke any method. Cite an example from the above code 6) Instanciate 2 rectangles using your Rectangle class
In Java Write a Fraction class that implements these methods:• add ─ This method receives a Fraction parameter and adds the parameter fraction to thecalling object fraction.• multiply ─ This method receives a Fraction parameter and multiplies the parameterfraction by the calling object fraction.• print ─ This method prints the fraction using fraction notation (1/4, 21/14, etc.)• printAsDouble ─ This method prints the fraction as a double (0.25, 1.5, etc.)• Separate accessor methods for each instance variable (numerator , denominator ) in theFraction classProvide a driver class (FractionDemo) that demonstrates this Fraction class. The driver class shouldcontain this main method : public static void main(String[] args) { Scanner stdIn = new Scanner(System.in); Fraction c, d, x; // Fraction objects System.out.println("Enter numerator; then denominator."); c = new Fraction(stdIn.nextInt(), stdIn.nextInt()); c.print(); System.out.println("Enter numerator; then denominator."); d = new…
Help
Assume the following method is added to the ArrayQueue class. What does this method do? public void undefined() { if(size < 2) return; if(size == capacity) reallocate(); rear = (rear + 1)%capacity; int f = (front + 1)%capacity; theData[rear] = theData[f]; size++; } Makes the front as rear and the rear as front, if the number of elements in the queue is at least 2. Adds the front element of the queue at the rear of the queue, if the number of elements in the queue is at least 2. Adds the second element of the queue at the rear of the queue, if the number of elements in the queue is at least 2. Exchanges the first and the last elements of the queue, if the number of elements in the queue is at least 2.
// This class discounts prices by 10% public class DebugFour4 { public static void main(String args[]) { final double DISCOUNT_RATE = 0.90; int price = 100; double price2 = 100.00; tenPercentOff(price DISCOUNT_RATE); tenPercentOff(price2 DISCOUNT_RATE); } public static void tenPercentOff(int p, final double DISCOUNT_RATE) { double newPrice = p * DISCOUNT_RATE; System.out.println("Ten percent off " + p); System.out.println(" New price is " + newPrice); } public static void tenPercentOff(double p, final double DISCOUNT_RATE) { double newPrice = p * DISCOUNT_RATE; System.out.println"Ten percent off " + p); System.out.println(" New price is " + newprice); } }
Using JAVASCRIPT write an object prototype for a Person that has a name and age, has a printInfo method, and also has a method that increments the persons age by 1 each time the method is called. Create two people using the 'new' keyword, and print both of their infos and increment one persons age by 3 years. Use an arrow function for both methods */ // Create our Person Prototype // Use an arrow to create the printInfo method // Create another arrow function for the addAge method that takes a single parameter // Adding to the age
Integer userValue is read from input. Assume userValue is greater than 1000 and less than 99999. Assign tensDigit with userValue's tens place value. Ex: If the input is 15876, then the output is: The value in the tens place is: 7 2 3 public class ValueFinder { 4 5 6 7 8 9 10 11 12 13 GHE 14 15 16} public static void main(String[] args) { new Scanner(System.in); } Scanner scnr int userValue; int tensDigit; int tempVal; userValue = scnr.nextInt(); Your code goes here */ 11 System.out.println("The value in the tens place is: + tensDigit);
Medium resistance: This class includes all resistances of values between 10 Q and 100 k Q. Most of electricity apparatus used in practice have resistances within this limit False true The unit used to measure Frequency is amper true O False Classification of errors 1- Gross errors 2- Systematic Errors. 3- Random errors false O true
JAVA PROGRAM Chapter 7. PC #1. Rainfall Class Write a RainFall class that stores the total rainfall for each of 12 months into an array of doubles. The program should have methods that return the following: • the total rainfall for the year • the average monthly rainfall • the month with the most rain • the month with the least rain Demonstrate the class in a complete program. Main class name: RainFall (no package name) HERE IS A WORKING CODE, PLEASE MODIFY THIS CODE SO THE PUBLIC CLASS IS MAIN AND WERE EVER THERE IS MAIN IN THE CHANGE IT SO IT RUNS. ALSO, MAKE SURE WHEN I UPLOAD THE CODE TO HYPERGRADE IT PASSES ALL THE TEST CASES. THANK YOU import java.util.Scanner;public class Main { private double[] rainfall = new double[12]; public Main(double[] rainfall) { this.rainfall = rainfall; } public double getTotalRainfall() { double total = 0.0; for(double rain : rainfall) { total += rain; }…
PYTHON!! class Triangle: def __init__(self,sides): self.a = sides[0] self.b = sides[1] self.c = sides[2] if __name__ == '__main__': t = Triangle([3,6,2]) print(f'Side1 = {t.a}') print(f'Side2 = {t.b}') print(f'Side3 = {t.c}') Based on the code. Assume you are in the Triangle class: Create a method called calcArea. It will calculate and return the area of the triangle using this formula: