In Your Own Words, very briefly (1 paragraph)
In: Computer Science
wite a program in C to print a right and left pointing arrow pattern using '#' symbol. Do so within 10 lines i.e upper half of the occupies 5 lines and lower half occupies other 5 lones.
User will enter 'R' or'r' for printing right pointing arrow. 'l' or 'L' for left pointing arrow.'k'' for invalid option.
You must use if-else and while loop for do this.
In: Computer Science
Problem: On an ARM processor using big endian format, given the following memory map and [R1] = 0xA10E0C2D, [R2] = 0x00000060, [R3] = 0x00000002, [R4] = 0x0000000C, predict [R1] and [R2] and draw the updated memory map after an ARM data transfer instruction is executed in EACH case. (hint: (1) in this map, each memory location is a word long and occupies 4 bytes; also you only need to draw the section of the memory including the changed word and its address; (2) these instructions are NOT executed one after the other one; instead, each instruction starts with the initial conditions given in the statement.)
0x6C [0x78092A7B]
0x68 [0x56AB8CEF]
0x64 [0x3490AB02]
0x60 [0x902E8C9A]
(1) LDRH R1, [R2, R4]
(2) STRB R1, [R2]
In: Computer Science
Complete the task below C++
This header file declares the Comp315Array Class
**************************/
//Include the libraries
#include <iostream> //Allow the use of cin and cout
//Declare namespace std for using cin and cout
using namespace std;
//Class declaration
class Comp315Array{
//Public members
public:
/****************
Default Constructor
Task: assign 0 to the array size
*********/
Comp315Array();
/****************
Constructor
Task: Define an int array of size n
*********/
Comp315Array(int n);
/*****************
getSize method
Task: return the array size
******************/
int getSize();
/*****************
setValue method
Task: set array value in position p
******************/
void setValue(int p, int val);
/*****
sum method
Task: compute the sum of the n elements in the array
params:
@returns
sum of elements
*******/
int sum();
/*****
sum method
Task: compute the sum of the elements in the array from position i to position j
@returns
sum of elements from position i to position j
*******/
int sum(int i, int j);
/*****
greatest method
Task: returns the greatest element in the array
@returns
value of the greatest element in the array
*******/
int greatest();
/*****
lowest method
Task: returns the lowest element in the array
@returns
value of the lowest element in the array
*******/
int lowest();
/*****
average method
Task: the average of elements in the array
@returns
the average of elements in the array
*******/
double averageValue();
/******
occurencesCount method
Task: count the number of occurrences in the array of a target value
params
targetVal: target value
@returns
number of occurrences of the target value in the array
*********/
int occurencesCount(int targetVal);
/******
firstOccurence method
Task: returns the position of the first occurrence of a target value
params
targetVal: target value
@returns
position of the first occurrence of target value in the array
if the target value is not in the array, the method must return a -1
*********/
int firstOccurence(int targetVal);
/******
printArray method
Task: print elements in the array
@returns
*********/
void printElements();
/**************
Destructor
******/
~Comp315Array();
//Private members
private:
//array size
int arraySize;
//actual array
int *actualArray;
};
**************************/
This file implements the Comp315Array Class
//Include the header file
#include "Comp315Array.h" //Allow the use of cin and cout
/****************
Default Constructor
Task: assign 0 to the array size
*********/
Comp315Array::Comp315Array()
{
arraySize = 0;
}
/****************
Destructor
*********/
Comp315Array::~Comp315Array()
{
actualArray=0;
}
/****************
Constructor
Task: Define an int array of size n
*********/
Comp315Array::Comp315Array(int n)
{
actualArray= new int[n];
arraySize = n;
}
/*****************
getSize method
Task: return the array size
******************/
int Comp315Array::getSize(){
return arraySize;
}
/*****************
setValue method
Task: set array value in position p
******************/
void Comp315Array::setValue(int p, int actualValue){
actualArray[p]=actualValue;
}
/*****
sum method
Task: compute the sum of the n elements in the array
params:
@returns
sum of elements
*******/
int Comp315Array::sum(){
int res=0;
return res;
}
/*****
sum method
Task: compute the sum of the elements in the array from position i to position j
@returns
sum of elements from position i to position j
*******/
int Comp315Array::sum(int i, int j){
int res=0;
return res;
}
/*****
greatest method
Task: returns the greatest element in the array
@returns
value of the greatest element in the array
*******/
int Comp315Array::greatest(){
int res=actualArray[0];
return res;
}
/*****
lowest method
Task: returns the lowest element in the array
@returns
value of the lowest element in the array
*******/
int Comp315Array::lowest(){
int res=actualArray[0];
return res;
}
/*****
average method
Task: the average of elements in the array
@returns
the average of elements in the array
*******/
double Comp315Array::averageValue(){
int res=0;
return res;
}
/******
occurencesCount method
Task: count the number of occurrences in the array of a target value
params
targetVal: target value
@returns
number of occurrences of the target value in the array
*********/
int Comp315Array::occurencesCount(int targetVal){
int res=0;
return res;
}
/******
firstOccurence method
Task: returns the position of the first occurrence of a target value
params
targetVal: target value
@returns
position of the first occurrence of target value in the array
if the target value is not in the array, the method must return a -1
*********/
int Comp315Array::firstOccurence(int targetVal){
int res=-1;
return res;
}
/******
printArray method
Task: print elements in the array
@returns
*********/
void Comp315Array::printElements(){
for(int i=0;i<arraySize; i++){
cout<<actualArray[i]<<endl;
}
}
**************************/
This file implements the Comp315Array Class
//Include the header file
#include "Comp315Array.h" //Allow the use of cin and cout
int menu()
{
int op;
op=0;
while (op==0 || op>10)
{
cout<<"***********************************"<<endl;
cout<<"Select one of the following options"<<endl;
cout<<"***********************************"<<endl;
cout<<" 1. Introduce array elements"<<endl;
cout<<" 2. Compute elements sum"<<endl;
cout<<" 3. Compute elements sum in a selected range"<<endl;
cout<<" 4. Compute elements average value"<<endl;
cout<<" 5. Find the greatest element"<<endl;
cout<<" 6. Find the lowest element"<<endl;
cout<<" 7. Count occurrences of an element"<<endl;
cout<<" 8. Find the first occurrence of an element"<<endl;
cout<<" 9. Print elements"<<endl;
cout<<" 10. Exit"<<endl;
cout<<"***********************************"<<endl;
cin>>op;
}
cout<<"Selected option"<<op<<endl<<endl;
return op;
}
int main(){
int size, op, val;
Comp315Array cArray;
cout<<"Array size? ";
cin>>size;
cArray = Comp315Array(size);
do{
op=menu();
switch (op) {
case 1: for (int i=0; i<size; i++)
{
cout<<"Element "<<i<<": ";
cin>>val;
cArray.setValue(i,val);
}
break;
case 2: cout<<"The total sum is "<< cArray.sum()<<endl;
break;
case 3:
int initVal, endVal;
cout<<"Initial position: ";
cin>>initVal;
cout<<"Final position: ";
cin>>endVal;
cout<<"The total sum is "<< cArray.sum(initVal, endVal)<<endl;
break;
case 4: cout<<"The aveage value is "<< cArray.averageValue()<<endl;
break;
case 5: cout<<"The greatest value is "<< cArray.greatest()<<endl;
break;
case 6: cout<<"The lowest value is "<<cArray.lowest()<<endl;
break;
case 7: cout<<"Target value: ";
cin>>val;
cout<<"Number of occurrences: " << cArray.occurencesCount(val) <<endl;
break;
case 8: cout<<"Target value: ";
cin>>val;
cout<<"The first occurrence is in position " << cArray.firstOccurence(val) <<endl;
break;
case 9: cArray.printElements();
break;
}
}while(op!=10);
cout<<"Goodbye!"<<endl;
return 0;
}In: Computer Science
A digital computer has a memory unit with 32 bits per word. The instruction set consists of 122 different operations. All instructions have an operation code part (opcode) and an address part (allowing for only one address). Each instruction is stored in one word of memory.
a) How many bits are needed for the opcode?
b) How many bits are left for the address part of the instruction?
c) What is the maximum allowable size for memory?
d) What is the largest unsigned binary number that can be accommodated in one word of memory?
In: Computer Science
Im in a java class and having trouble with assigning the seat to a specific number from the array.. Below are the instructions I was given and then the code that I have already.
ITSE 2321 – OBJECT-ORIENTED PROGRAMMING JAVA Program 8 – Arrays and ArrayList
A small airline has just purchased a computer for its new automated reservations system. You have been asked to develop the new system. You are to write an application to assign seats on flight of the airline’s only plane (capacity: 10 seats). Your application should display the following alternatives: "Please type 1 for First Class" and "Please type 2 for Economy." If the user types 1, your application should assign a seat in the first-class section (seats 1 – 5). If the user types 2, your application should assign a seat in the economy section (seats 6 – 10). Your application should then display a boarding pass indicating the person’s seat number and whether it’s in the first-class or economy section of the plane. Use a one-dimensional array of primitive type boolean to represent the seating chart of the plane. Initialize all the elements of the array to false to indicate that all the seats are empty. As each is assigned, set the corresponding element of the array to true to indicate that the seat is on longer available. Your application should never assign a seat that has already been assigned. When the economy section is full, your application should ask the person if it’s acceptable to be placed in the first-class section (and vice versa). If yes, make the appropriate seat assignment. If no, display the message "Next flight leaves in 3 hours." End the program when all the ten seats on the plane have been assigned.
No input, processing or output should happen in the main method. All work should be delegated to other non-static methods. Include the recommended minimum documentation for each method. See the program one template for more details.
Run your program, with your own data, and copy and paste the output to a file. Create a folder named, fullname_program8. Copy your source code and the output file to the folder. Zip the folder and upload it to Blackboard.
/*
* To change this license header, choose License Headers in Project
Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package airlineapp;
import java.util.Scanner;
/**
*
* @author user1
*/
public class AirlineApp {
int num;
int i;
int counter = 0;
int [] seatNum = new int[11];
public static void main(String[] args) {
AirlineApp application = new AirlineApp();
application.userInput();
application.seatChart();
//create the array
// TODO code application logic here
}
public void userInput(){
Scanner input = new Scanner(System.in);
System.out.print("Please type 1 for first class and press 2 for
economy: ");
//gets the input from the user and saves it as num to perform the
rest
//of the aplication
num = input.nextInt();
}
public void seatChart(){
for(int counter = 0; counter < seatNum.length; counter++){
if(num != 2 && counter < 6 )
counter = counter + 1;
}
}
}
In: Computer Science
Compare the file storage of two types of cell phones, such as an iPhone and an Android phone. Research the amount of system software that occupies main memory after the phone is completely powered on. If the amount of storage used by the system files are substantially different, explain why that may be the case, such as platform issues, features, and so on. Cite your sources.
Cell phone configuration doesn't matter. Can pick any two types of cell phone.
In: Computer Science
What is a data dictionary? How is it useful and to whom? When should you consider including one in a project?
In: Computer Science
"Gambling Greg" Assignment
Outcomes:
Program Specifications:
Assume that gambling Greg often goes to the Dog Racing Track. Greg loves to bet on the puppies. In each race Greg will place a wager and pick a dog. The dog information will be stored in a structure name DOG as follows:
Name, amount to pay out if Greg wins, and the odds of this dog winning the race.
The program should have the following menu:
[G]amble
[R]esults of All Races
[L]eave the Dog Track
If Greg selects [G] the program will ask Greg for his wager and allow Greg to pick a dog from a list. The program will then run the race. The result will be shown to Greg. The results of the race will be stored for future use.
If Greg selects [R] the program will show Greg the results of all previous races entered during this run of the program.
If Greg selects [L] the program will end.
The dogs:
You will create 9 different dogs. See below:
|
Dog Name |
Payout |
Odds of Winning |
|
You name the dogs |
2 to 1 |
40% |
|
5 to 1 |
10% |
|
|
10 to 1 |
8% |
|
|
15 to 1 |
6% |
|
|
50 to 1 |
1% |
|
|
20 to 1 |
4% |
|
|
10 to 1 |
8% |
|
|
5 to 1 |
10% |
|
|
3 to 1 |
13% |
In: Computer Science
As you know, the number of days in each month of our calendar
varies: • February has 29 days in a leap year, or 28 days
otherwise. • April, June, September, and November have 30 days. •
All other months have 31 days. Usually, years that are divisible by
4 (e.g., 2008, 2012, 2016) are leap years. However, there’s an
exception: years that are divisible by 100 (e.g., 2100, 2200) are
not leap years. But there’s also an exception to that exception:
years that are divisible by 400 (e.g., 1600, 2000) are leap
years.
Within your Lab3HW folder, write a program named DaysInMonth.java
that asks the user to enter a month (1-12) and year (1000-3000).
Your program should then show the number of days in that month. If
the user enters a month or year beyond the specified ranges, show an
appropriate error message.
Here are some examples of what your completed program might look
like when you run it. Underlined parts indicate what you type in as
the program is running.
Example 1
Enter month (1-12): 0 Enter year (1000-3000): 2001 Error - month
and/or year out of bounds.
1
Example 2
Enter month (1-12): 2 Enter year (1000-3000): 2016 2/2016 contains
29 days.
Example 3
Enter month (1-12): 2 Enter year (1000-3000): 2900 2/2900 contains
28 days.
In: Computer Science
Problem
Write in drjava is fine.
Using the classes from Assignment #2, do the following:
The Vegetable class should have the usual constructors (default and parameterized), get (accessor) and set (mutator) methods for each attribute, and a toString method
Child classes should call parent methods whenever possible to minimize code duplication.
The driver program must test all the methods in the Vegetable class, and show that the new methods added to the Plant class can be called by each of the child classes. Include comments in your output to describe what you are testing, for example System.out.println(“testing Plant toString, accessor and mutator”);. Print out some blank lines in the output to make it easier to read and understand what is being output.
Assignment Submission:
Submit a print-out of the Plant and Vegetable classes, the driver file and a sample of the output. Also include a UML diagram of the classes involved. (Use tables in Word to create the various classes. Remember to use the correct arrows between the classes)
Marking Checklist
private String lifespan;
class Plant{
String name;
String lifeSpan;
//Default Constructor
public Plant(){
}
//Parametrized Constructor
public Plant(String name,String lifeSpan){
this.name=name;
this.lifeSpan=lifeSpan;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getLifeSpan() {
return lifeSpan;
}
public void setLifeSpan(String lifeSpan) {
this.lifeSpan = lifeSpan;
}
public String toString(){
return "\n\tName:"+name+"\n\tLifeSpan:"+lifeSpan;
}
}
class Tree extends Plant{
float height;
//Default Constructor
public Tree(){
}
//Parametrized Constructor
public Tree(float height,String name,String lifeSpan){
super(name,lifeSpan); //Super Class Constructor
this.height=height;
}
public float getHeight() {
return height;
}
public void setHeight(float height) {
this.height = height;
}
public String toString(){
return "\n\t"+super.toString()+"\n\tHeight:"+height;
}
}
class Flower extends Plant{
String color;
//Default Constructor
public Flower(){
}
//Parametrized Constructor
public Flower(String color,String name,String lifeSpan){
super(name,lifeSpan); //Super Class Constructor
this.color=color;
}
public String getColor() {
return color;
}
public void setColor(String color) {
this.color = color;
}
public String toString(){
return "\n\t"+super.toString()+"\n\tColor:"+color;
}
}
public class drjava{
public static void main(String args[]){
System.out.println("\n\nPlant DETAILS\n");
Plant plant=new Plant();
System.out.println("Testing Plant Setter and Getter and toString Methods");
plant.setName("Rose");
plant.setLifeSpan("2Years");
System.out.println("Plant Name:"+plant.getName());
System.out.println("Plant LifeSpan:"+plant.getLifeSpan());
System.out.println("Plant toString:"+plant.toString());
System.out.println("\n\nTREE DETAILS\n");
Tree tree=new Tree();
System.out.println("Testing Tree Setter and Getter and toString Methods");
tree.setName(plant.getName());
tree.setLifeSpan(plant.getLifeSpan());
tree.setHeight(3.565f);
System.out.println("Tree Name:"+tree.getName());
System.out.println("Tree Height:"+tree.getHeight());
System.out.println("Tree LifeSpan"+tree.getLifeSpan());
System.out.println("Tree toString:"+tree.toString());
System.out.println("\n\nFlower DETAILS\n");
Flower flower=new Flower();
System.out.println("Testing Flower Setter and Getter and toString Methods");
flower.setName("Rose Flower");
flower.setLifeSpan("2days");
flower.setColor("Red");
System.out.println("Flower Name:"+flower.getName());
System.out.println("Flower Lifespan:"+flower.getLifeSpan());
System.out.println("Flower Color:"+flower.getColor());
System.out.println("Flower toString:\n"+flower.toString());
}
}In: Computer Science
Modify the following C++ program to count the number of correct and incorrect responses typed by the student. After the student types 5 answers, your program should calculate the percentage of correct responses. If the percentage is lower than 75 percent, your program should print “Please ask for extra help” and then terminate. If the percentage is 75 percent or higher, your program should print “Good work!” and then terminate. The program is as follows:
#include<iostream>
#include<iomanip>
#include<cstdlib>
#include<time.h>
using namespace std;
int main()
{
const int no_runs = 5;
int run, n1,n2,answer;
srand((unsigned int)time(NULL));
for(run = 0;run<no_runs;run++)
{
n1 = rand()%9 + 1;
n2 = rand()%9 +1;
while(true)
{
cout<<"What is the product of "<<n1<<" and
"<<n2<<": ";
cin>>answer;
if(answer==n1*n2)
break;
cout<<"No. Please try again."<<endl;
}
cout<<"Very good!"<<endl;
}
system("pause");
return 0;
}
In: Computer Science
In: Computer Science
*******FOR A BIG THUMBS UP********
------INSTRUCTIONS---------
Coding standards note: The coding standards are in a document in a D2L module titled Coding Standards. See Grading Criteria for points lost if not followed.
Competencies being graded:
Problem Statement:
Create a program that reads in the file people.dat from Homework 2. (Yes, you can use the code from Homework 1). Please make sure to include Person.java in your submission.
Implement your own HashMap implementation. You may use the HashMap example provided in the notes, but you MUST modify it to handle Person objects only and bring it completely up to coding standards to receive all points. You MAY NOT use java.util.HashMap or java.util.TreeMap in this problem.
After reading in the Person objects, store the Personobjects into your HashMap implementation using the unique ID as the key to the map rather than the ArrayList used in Homework 2. Then print the Person objects from the HashMap in a user friendly fashion. You may use iterator or for-each loop-> DO NOT JUST System.out.println THE HASHMAP- ITERATE THROUGH IT. Hint: Modify your toString in Person to get a nice looking output.
------people.dat---------
¬í sr PersonM”fò(Ÿ# I idNumL cityt Ljava/lang/String;L
firstNameq ~ L lastNameq ~ xp t Bufordt Nanat
Agyemansq ~ t Dulutht Josepht Andersonsq ~ t Lawrencevillet Kylet
Brookssq ~ t Daculat Joshuat Broughtonsq ~ t Lilburnt
Demetrit Clarksq ~ t
Snellvillet Davidt Edwardssq ~ t Atlantat Jonit Elshanisq ~ t
Decaturt Jacobt Fagan
------peopleFile.txt-------
Nana
Agyeman
Buford
1
Joseph
Anderson
Duluth
2
Kyle
Brooks
Lawrenceville
3
Joshua
Broughton
Dacula
4
Demetri
Clark
Lilburn
5
David
Edwards
Snellville
6
Joni
Elshani
Atlanta
7
Jacob
Fagan
Decatur
8
--------Person.java-----------
import java.io.Serializable;
public class Person implements Serializable
{
public String firstName;
public String lastName;
public int idNum;
public String city;
/**
* Default constructor used to create empty
attributes
*/
public Person()
{
firstName = "";
lastName = "";
idNum = 0;
city = "";
}
/**
* @param firstName
* @param lastName
* @param idNum
* @param city
*/
public Person(String firstName, String lastName, int
idNum, String city)
{
this.firstName = firstName;
this.lastName = lastName;
this.idNum = idNum;
this.city = city;
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#toString()
*/
@Override
public String toString()
{
return firstName + " " + lastName
;
}
/**
* @return the firstName
*/
public String getFirstName()
{
return firstName;
}
/**
* @param firstName the firstName to set
*/
public void setFirstName(String firstName)
{
this.firstName = firstName;
}
/**
* @return the lastName
*/
public String getLastName()
{
return lastName;
}
/**
* @param lastName the lastName to set
*/
public void setLastName(String lastName)
{
this.lastName = lastName;
}
/**
* @return the idNum
*/
public int getIdNum()
{
return idNum;
}
/**
* @param idNum the idNum to set
*/
public void setIdNum(int idNum)
{
this.idNum = idNum;
}
/**
* @return the city
*/
public String getCity()
{
return city;
}
/**
* @param city the city to set
*/
public void setCity(String city)
{
this.city = city;
}
}
----------GeneratePeopleFile.java-----------
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
import java.util.Scanner;
public class GeneratePeopleFile
{
public static void main(String[] args)
{
// Starting point of program
// open a file of Person class and
read them into an ArrayList of Persons
ArrayList<Person> people =
new ArrayList<Person>();
File peopleFile = new
File("peopleFile.txt");
// open a Scanner to read data from
File
Scanner peopleReader = null;
try
{
peopleReader =
new Scanner(peopleFile);
} catch (FileNotFoundException
e)
{
// TODO
Auto-generated catch block
System.out.println("File not found - terminating program");
System.exit(0);
e.printStackTrace();
}
// read one person at a
time
while
(peopleReader.hasNext())
{
// read first
name
String firstName
= peopleReader.next();
String lastName
= peopleReader.next();
String city =
peopleReader.next();
int id =
peopleReader.nextInt();
// create new
Person instance and add to ArrayList
Person temp =
new Person(firstName, lastName, id, city);
people.add(temp);
}
// print info to user
System.out.println("The people from
the file are:");
System.out.println(people);
// write people to another
file
File secondPeopleFile = new
File("people.dat");
ObjectOutputStream peopleWrite =
null;
try
{
peopleWrite =
new ObjectOutputStream(new FileOutputStream(secondPeopleFile));
for (Person
temp : people)
{
peopleWrite.writeObject(temp);
}
peopleWrite.close();
} catch (IOException e)
{
System.out.println("Problems writing to file");
// TODO
Auto-generated catch block
e.printStackTrace();
}
}
}
In: Computer Science
IN PSEUDOCODE and C++
Program 1: Stay on the Screen! Animation in video games is just like animation in movies – it’s drawn image by image (called “frames”). Before the game can draw a frame, it needs to update the position of the objects based on their velocities (among other things). To do that is relatively simple: add the velocity to the position of the object each frame.
For this program, imagine we want to track an object and detect if it goes off the left or right side of the screen (that is, it’s X position is less than 0 and greater than the width of the screen, say, 100). Write a program that asks the user for the starting X and Y position of the object as well as the starting X and Y velocity, then prints out its position each frame until the object moves off of the screen. Design (pseudocode) and implement (source code) for this program.
Sample run 1:
Enter the starting X position: 50
Enter the starting Y position: 50
Enter the starting X velocity: 4.7
Enter the starting Y velocity: 2
X:50 Y:50
X:54.7 Y:52
X:59.4 Y:54
X:64.1 Y:56
X:68.8 Y:58
X:73.5 Y:60
X:78.2 Y:62
X:82.9 Y:64
X:87.6 Y:66
X:92.3 Y:68
X:97 Y:70
X:101.7 Y:72
Sample run 2:
Enter the starting X position: 20
Enter the starting Y position: 45
Enter the starting X velocity: -3.7
Enter the starting Y velocity: 11.2
X:20 Y:45
X:16.3 Y:56.2
X:12.6 Y:67.4
X:8.9 Y:78.6
X:5.2 Y:89.8
X:1.5 Y:101
X:-2.2 Y:112.2
In: Computer Science