What are the four components of the Universal Systems Model?

Answers

Answer 1

Answer:

output, process, input, and feedback

Explanation:

Related Questions

Coupon collector is a classic statistic problem with many practical applications. The problem is to pick objects from a set of objects repeatedly and determine how many picks are needed for all the objects to be picked at least once. A variation of the problem is to pick cards from a shuffled deck of 52 cards repeatedly and find out how many picks are needed before you see one of each suit. Assume a picked card is placed back in the deck before picking another. Write a program to simulate the number of picks needed to get total of four cards from each different suit and display the four cards picked (it is possible that a card may be picked twice). Here is a sample run of the program:
4 of Diamonds
8 of Spades
Queen of Clubs
8 of Hearts
Number of picks: 9

Answers

Answer:

Here is the JAVA program:

public class Main { //class name

public static void main(String[] args) { //start of main method

//sets all boolean type variables spades, hearts diamonds and clubs to false initially

boolean spades = false;

boolean hearts = false;

boolean diamonds = false;

boolean clubs = false;

String[] deck = new String[4]; //to store card sequence

int index = 0; //to store index position

int NoOfPicks = 0; //to store number of picks (picks count)

while (!spades || !hearts || !diamonds || !clubs) { //loop starts

String card = printCard(getRandomCard()); //calls printCard method by passing getRandomCard method as argument to it to get the card

NoOfPicks++; //adds 1 to pick count

if (card.contains("Spades") && !spades) { //if that random card is a card of Spades and spades is not false

deck[index++] = card; //add that card to the index position of deck

spades = true; //sets spades to true

} else if (card.contains("Hearts") && !hearts) { //if that random card is a card of Hearts and hearts is not false

deck[index++] = card;

hearts = true; //sets hearts to true

} else if (card.contains("Diamond") && !diamonds) { //if that random card is a card of Diamond and diamonds is not false

deck[index++] = card;

diamonds = true; //sets diamonds to true

} else if (card.contains("Clubs") && !clubs) { if that random card is a card of Clubs and clubs is not false

deck[index++] = card;

clubs = true; } } //sets clubs to true

for (int i = 0; i < deck.length; i++) { //iterates through the deck i.e. card sequence array

System.out.println(deck[i]); } //prints the card number in deck

System.out.println("Number of picks: " + NoOfPicks); } //prints number of picks

public static int getRandomCard() { //gets random card

return (int) (Math.random() * 52); } //generates random numbers of 52 range

public static String printCard(int cardNo) { //displays rank number and suit

String[] suits = { "Spades", "Hearts", "Diamonds", "Clubs", }; //array of suits

String[] rankCards = { "Ace", "2", "3", "4", "5", "6", "7", "8", "9", "10",

"Jack", "Queen", "King" }; //array of rank

int suitNo = cardNo / 13; //divides card number by 13 and stores to suitNo

int rankNo = cardNo % 13; //takes modulo of card number and 13 and store it to rankNo

return rankCards[rankNo] + " of " + suits[suitNo]; }} //returns rankCard at rankNo index and suits at suitNo index

Explanation:

The program is explained in the comments attached with each line of code. The screenshot of the program along with its output is attached.

As a twist on the Hello World exercise, you are going to be the end user of the Hello class. This class is designed to greet the user in a variety of world languages. For this task, complete the following:
Use the Scanner class to ask the user for their name.
Create a Hello object by passing the name to the constructor.
Call at least 3 methods from the Hello class to print the greeting in 3 different languages.
Remember to write your code in the HelloTester class, but make sure you take a look at the Hello class so that you know the names of the methods you need to use.

Answers

Answer:

Here is the Hello class:

public class Hello { //class name

private String name; //to store the name

public Hello (String names) //parameterized constructor

{ name = names; }

public void English() { //method to greet user in english

System.out.print("Hello "); //displays Hello on output screen

System.out.print(name); //displays user name

System.out.println("!"); } //displays exclamation mark symbol

public void Spanish(){ //method to greet user in spanish

System.out.print("Hola "); //displays Hello on output screen

System.out.print(name); //displays user name

System.out.println("!"); } //displays exclamation mark symbol

public void French() { //method to greet user in french

System.out.print("Bonjour "); //displays Hello on output screen

System.out.print(name); //displays user name

System.out.println("!"); } } //displays exclamation mark symbol

Explanation:

Here is the HelloTester class:

import java.util.Scanner; //to accept input from user

public class HelloTester { //class name

public static void main (String[]args) { //start of main method

String name; //to store the name of user

Scanner input = new Scanner(System.in); //creates Scanner class object

System.out.println("Enter name?" ); //prompts user to enter name

name = input.nextLine(); //scans and reads the name from user

Hello hello = new Hello(name); //creates Hello class object and calls constructor by passing name

hello.English(); //calls English method using object hello to greet in english

hello.Spanish(); //calls Spanish method using object hello to greet in spanish

hello.French(); } } //calls French method using object hello to greet in french

The output of the program is:

Enter name? user Hello user! Hola user! Bonjour user!

The screenshot of the program along with its output is attached.

Java Program:

Java is one of the most popular programming languages that is being widely used in the IT industry. It is simple, robust, and helps us to reuse the code.

The required program is,

\\import java.util.Scanner;

class Hello

{

private String name;

public Hello(String yourName)

{

name=yourName;

}

public void english()

{

System.out.print("Hello ");

System.out.print(name);

System.out.println("!");

}

public void spanish()

{

System.out.print("Holla ");

System.out.print(name);

System.out.println("!");

}

public void french()

{

System.out.print("Bonjour ");

System.out.print(name);

System.out.println("!");

}

public void german()

{

System.out.print("Hallo ");

System.out.print(name);

System.out.println("!");

}

public void russian()

{

System.out.print("Privet ");

System.out.print(name);

System.out.println("!");

}

public void chinese()

{

System.out.print("Ni hao ");

System.out.print(name);

System.out.println("!");

}

public class HelloTester

{

public static void main(String[] args)

{

Scanner input=new Scanner(System.in);

String name;

//Accepting the name

System.out.print("\nEnter your name: ");

name=input.next();

/creating an object of Hello class

Hello hello=new Hello(name);

System.out.println("\nGreeting in English: ");