Create a Java class with a method to calculate the factorial of a number.

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QUICKLY please. Thank you. Please answer in python quickly Below is code that defines a Quadrilateral class (a shape with four sides), which has four floating point instance variables that correspond to the four side lengths: import math class Quadrilateral: def __init__(self,a,b,c,d): self.a = a self.b = b self.c = c self.d = d def perimeter(self): return self.a + self.b + self.c + self.d def area(self): print("Not enough information") def __lt__(self, other): return self.perimeter() < other.perimeter() Define a Rectangle class that inherits from Quadrilateral, with the following methods: __init__(self, length, width): Override the __init__ method so that the Rectangle constructor only takes in two floating point numbers. Your constructor for Rectangle should only consist of a call to Quadrilateral’s constructor: don’t define any new instance variables. Override the area method to...

Writing a Modular Program in Java Summary In this lab, you add the input and output statements to a partially completed Java program. When completed, the user should be able to enter a year, a month, and a day to determine if the date is valid. Valid years are those that are greater than 0, valid months include the values 1 through 12, and valid days include the values 1 through 31. Instructions Notice that variables have been declared for you. Write the simulated housekeeping() method that contains input statements to retrieve a year, a month, and a day from the user. Add statements to the simulated housekeeping()method that convert the String representation of the year, month, and day to ints. Include the output statements in the simulated endOfJob()method. The format of the output is as follows:month/day/year is a valid date. or month/day/year is an invalid date. Execute the program entering the following date: month = 5, day = 32, year =2014Observe the output of this...

In Java, an identifier, which can be class name or method name, is a series (string) of the following groups/types of characters: {fill/continue from 2) (1) Lower-case alphabet characters: a – z, (2) .................... (3) ...................... (4) .................. (5) .............

Java Programming

Programming language: JAVA: Processing Exercise 2. In section 7.3, you made a ball orbit the mouse. Make the ball orbit in an ellipse instead of a circle. You can do this by using a different radius for the x and for the y calculations. Make multiple balls orbit the mouse at different speeds. E.g., make three. Make one move in the opposite direction (counter-clockwise). Example in 7.3 codes attached with a photo. Cannot use advanced coding! we have only learned active processing, user defined functions, float, simple trig so far

please use java to answer the following question 2.This task is required to create Craps, which is a popular dice game played in casinos.You are supposed to write a program to play a variation of the game, as follows:• Roll two dice. (Each roll should produce two random numbers between 1 to 6)• Each die has six faces representing values 1, 2, ..., and 6, respectively.• Check the sum of the two dice. If the sum is 2, 3, or 12 (your program should display craps), you losethe game.• If the sum of the two dice is 7 or 11 (your program should display naturals), you win the game.• If the sum of two dice is any value (i.e., 4, 5, 6, 8, 9, or 10), your program should establish a point inthe game (meaning store that sum). Continue to roll the dice until the sum is either a 7 or the samepoint value which was established. If rolled sum is 7, you lose the game. Otherwise, if the rolled sum isequal to established point you win.

Julio Cesar Chavez Mark VII is an interplanetary space boxer, who currently holds the championship belts for various weight categories on many different planets within our solar system. However, it is often difficult for him to recall what his "target weight" needs to be on earth in order to make the weight class on other planets. Write a Java program to help him keep track of this. Create a Weight class in which you will have your main method. Perform all the inputs, calculations, and outputs in the main method. It should ask him what his earth weight is, and to enter a number for the planet he wants to fight on. It should then compute his weight on the destination planet based on the table below: # Planet Relative gravity 1 Venus 0.78 2 Mars 0.39 3 Jupiter 2.65 4 Saturn 1.17 5 Uranus 1.05 6 Neptune 1.23 So, for example, if Julio weighs 128 lbs. on earth, then he would weigh just under 50 lbs. on Mars, since Mars' gravity is...

import java.util.Scanner; class Program41 {//PSEUDOCODE //Write a program that prompts the user to enter a full name consisting of three names //first //middle //last // into one String variable //Then use methods of class String to: //print the number of characters in the full name, excluding spaces //print just the middle name and the number of characters in it //print the three initials of the name //print the last name in all lower case //print the full name in the usual alphabetical format (Last, First Middle) and proper case public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.print("Enter full name:"); String fullName = sc.nextLine(); System.out.println("\nNumber of Charatcers in your name " + fullName + "':" + fullName.replace("","").length()); String[] subNames = fullName.split(" "); System.out.println("\nMiddle Name: " +...

java a. You want to create a Java main class. You create the source code file, declare the package, and write the class header. Now you must create the main method that starts the program. Write the entire method header, including the opening brace for the method. b. Assume that price is an integer variable whose value is the price (in US currency) in cents of an item. Write a statement that calculates the whole dollars in the amount and saves it in a new integer variable named dollars. Note: The Java style guide states that one space is used on either side of binary operators.