solve in python3 or java Create methods for the Calculator class that can do the following: Add two numbers. Subtract two numbers. Multiply two numbers. Divide two numbers. Examples calculator = Calculator() calculator.add(10, 5) ➞ 15 calculator.subtract(10, 5) ➞ 5 calculator.multiply(10, 5) ➞ 50 calculator.divide(10, 5) ➞ 2 Notes The methods should return the result of the calculation. Don't worry about needing to handle division by zero errors.
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solve in python3 or java
Create methods for the Calculator class that can do the following: Add two numbers. Subtract two numbers. Multiply two numbers. Divide two numbers. Examples calculator = Calculator() calculator.add(10, 5) ➞ 15 calculator.subtract(10, 5) ➞ 5 calculator.multiply(10, 5) ➞ 50 calculator.divide(10, 5) ➞ 2 Notes The methods should return the result of the calculation. Don't worry about needing to handle division by zero errors.
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- package lab1; /** * A utility class containing several recursive methods * * <pre> * * For all methods in this API, you are forbidden to use any loops, * String or List based methods such as "contains", or methods that use regular expressions * </pre> * * */ public final class Lab1 { /** * This is empty by design, Lab class cannot be instantiated */ privateLab1(){ // empty by design } /** * Returns the product of a consecutive set of numbers from <code> start </code> * to <code> end </code>. * * @param start is an integer number * @param end is an integer number * @return the product of start * (start + 1) * ..*. + end * @pre. * <code> start </code> and <code> end </code> are small enough to let * this method return an int. This means the return value at most * requires 4 bytes and no overflow would happen. */ publicstaticintproduct(ints,inte){ if(s==e){ returne; }else{ returns*product(s+1,e); } }…Java - Access Specifiers Create a class named Circle that has attributes radius, area, and circumference and make the attributes private. Make a public method that sets the radius and a method that prints all attributes. Ask the user input for radius. Note: Use the PI from the math functions Inputs A line containing an integer 10 Sample Output Radius: 20 Area: 1256.64 Circumference: 125.66**JAVA LANGUAGE** beginner level import java. util.Arrays;import java.util.Scanner; Suppose that a Scanner object contains a bunch of tokens all on a single line separated by spaces. For example: 100.5 30.4 pizza 56.8 1000.3 8.2 Also suppose that you have a particular item that you know the price of. Let’s use the following example: Kindle: 99.99 Write a static method: public static double priceIsRight(Scanner s, double price) that takes a Scanner and an item price as parameters and returns the bid that is closest to the item price but not greater than the item price. If all bids are greater than the price, return 0.0. If there are no bids (Scanner is empty) return 0.0. You can assume the Scanner is not null. In the above example. 56.8 should be returned, since it is the number that is closest to 99.99 but not over 99.99. Notice that there may be some invalid tokens in the Scanner's input. The above example has pizza as one of its tokens, which is clearly not a valid bid. Your…
- Write a class that represents a player in a game. The player should have a name, password,experience points, an inventory array of four strings, and a location x,y. Your class shouldhave mutator and accessor methods for all variables. For example: setName(), getName(). Itshould have a suitable display method. Mutators and accessors should be public but allvariables should be private. To implement get inventory, use string * getInv(); Use the scoperesolution operator to implement larger methods such as display(). Use in class methods forshorter methods such as setName(), getName(). (in C++)Example:void setName(string name){this->name = name;}string *getInv();...string* player::getInv(){return inventory;}Note that in the above method setName “this->” is required for disambiguation. If writtenvoid setName(string n){name = n;}“this->” is not required.Write a test program that creates three players and displays them.Example Output:This program generates three player objects and…Please answer number 2 with the subparts as they are linked altogether. 2. Create a class with a method. The method has to decide whether a given year is a leap year ornot.a. Note: A year is considered a leap year if:i. It has an extra day i.e. 366 instead of 365.ii. It occurs every 4 years e.g. 2008, 2012 are leap years.iii. For every 100 years, a special rule applies - 1900 is not a leap year but 2000 is aleap year. In those cases, we need to check whether it is divisible by 400 or not.Class RightTriangle Represents a right triangle by the length of each of its two legs Includes the default and overloaded constructor, methods to set the length of each of the two legs, amethod to get the area, a method to scale the size of the triangle, a method to invert the triangle(swap the lengths of its two legs), and a method to print its dimensions.Class TestRightTriangle Creates and initializes two triangles. Calls the various associated methods to set its size, compute its area, scale its size, invert, and print itsdimensions.You are required to implement both classes according to the requirements specified in the commentsdisplayed in the .java files. The following is an example of possible output:triangle1 dimensions: 6.0 3.5triangle1 area: 10.5triangle2 dimensions: 3.0 4.0triangle2 area: 6.0triangle1 dimensions: 18.0 10.5triangle2 dimensions: 5.5 6.5triangle1 dimensions: 4.5 2.625triangle1 dimensions after invert: 2.625 4.5A few details: Do NOT modify any of the code…
- Add a toString() method to Fraction class that returns the fraction as aString in the form "x / y", where x and y are numerator and denominatorrespectively. As the method does not do any display itself, the output can be done by a client program that calls the method in an output statement. Use client program to test this functionality; i.e. provide an output statement to display a fraction as its String representation. class Fraction2{private int n, d;public Fraction(){this.n = this.d = 0; //Initialize the values}public Fraction(int n, int d){this.n = n; //Initialize the variablesthis.d = d;}//Define the getter function getNum() that returns the numeratorpublic int getNum(){//Returns numeratorreturn n;} //Define the getter function getDen() that returns the denominatorpublic int getDen(){//Returns denominatorreturn d;}//Define the boolean function isZero() that returns 0 if numerator is 0 and denominator is not equals to zeropublic boolean isZero(){return(getNum() == 0 &&…Given the Solid class, extend it with: Pyramid Cylinder RectangularPrism Sphere Make sure to create the constructor and override the volume and surfaceArea methods. Also extend RectangularPrism with Cube. HINT: You can look up formulas for how to compute the volume and surface area of a certain type of shape online. ========================================== public class SolidTester{public static void main(String[] args){String name;double volume;double surfaceArea; // Pyramid constructor should take name, length, width, height// in that orderPyramid pyramid = new Pyramid("My pyramid", 1, 3, 5);name = pyramid.getName();volume = round(pyramid.volume(), 2);surfaceArea = round(pyramid.surfaceArea(), 2);System.out.println("Pyramid '" + name + "' has volume: " + volume +" and surface area: " + surfaceArea + "."); // Sphere constructor should take name then radiusSphere sphere = new Sphere("My sphere", 4);name = sphere.getName();volume = round(sphere.volume(), 2);surfaceArea =…def fun_cities(adict, city): """ Question 7 - Given a dict that maps a fun activity to a list of cities where you could practice it, return the set of activities that one could practice at the provided city! - For an extra challenge, try doing this in one line (Optional). Args: adict (dict) city (str) Returns: set >>> activity_dict = {"Sightseeing": ["Venice", "Istanbul", "London"], "Kayaking": ["Venice", "Oslo", "Paris"], "Food Tasting": ["Paris", "Istanbul", "Mumbai"], "Going to the Theater": ["Paris", "Oslo", "London"]} >>> fun_cities(activity_dict, "Paris") {'Kayaking', 'Food Tasting', 'Going to the Theater'} >>> fun_cities(activity_dict, "Venice") {'Sightseeing', 'Kayaking'} # activity_dict = {"Sightseeing": ["Venice", "Istanbul", "London"], "Kayaking": ["Venice", "Oslo", "Paris"], # "Food Tasting": ["Paris", "Istanbul", "Mumbai"], "Going…
- in computer programming: java Create a rectangle class that can compute the area and the sum of its sides. Create a specialized method that will allow the class to compare other rectangle objects. The comparison should identify the larger rectangle according to the object’s area. You should be able to implement the class where the user provides rectangle dimensions. The program should be able to display which of the rectangle inputs is larger using the Rectangle class method that you defined. Sample output: Enter Length R1: 1 Enter Width R1: 1 Enter Length R2: 2 Enter Width R2: 2 Results: R1 Area: 1 R1 Sum: 2 R2 Area: 4 R2 Sum: 4 R2 is the bigger Rectangle! Note: All characters in boldface are user inputs.A pentagonal number is defined as n(3n-1)/2 forn = 1 , 2 , …, and so on. Therefore, the first few numbers are 1, 5, 12, 22,. . . . Write a method with the following header that returns a pentagonalnumber:public static int getPentagonalNumber(int n)For example, getPentagonalNumber(1) returns 1 and getPentagonalNumber(2) returns 5. Write a test program that uses this method to display thefirst 100 pentagonal numbers with 10 numbers on each line. Use the %7d formatto display each number.Complete the Link class by writing methods described below. Do not use loops, or create any more methods (other than those specified), class or instance variables.public class Link{private Link next; //null if this is the last linkprivate int value;public Link(Link n, int v){next = n;value = v;}}Do not use loops, or create any more methods (other than those specified), class or instance variables. 1. Write a recursive instance method count that takes no parameters and returns an int. Return the number of links that hold the value zero, with the exception that the last link in the list is not included in the count. For example, for the linked list, {(first) 5→0→3→1→0→0 (last)} it would return the value 2.