(Java program) Write an applet that draws two animated cars that must race each other. The race cars should move along a straight line, with each starting behind a Start Line. The user should have the option to set the speed of each car. The speed range is 0 to 100. There should be a Start button to begin the race and an End button to stop the race at any time.

Explain the Windows Recovery Environment. How is it used?

Respond to the following in a minimum of 175 words:

One of the most important concepts of programming is handling input and output. The following activity will allow you to get familiar with this concept specifically when using Python.

Write a function to add two values and display the results.

Discuss the steps in your thought process as you created the code, any issues you encountered, and how you solved those issues.   

mips code for n queen problem

1. All members may be public for this example
2. You will need three data members:
a. An array of 3 doubles to keep the votes

b. An array of 3 strings to place the candidates names

c. An array of 3 doubles to place the calculates vote breakdown

3. You will need three methods:
a. A constructor that receives three strings and sets the names of the candidates to these strings and set all the votes initially to zero.
b. A "calcPercentages" method that has no arguments or return values and simply calculates each vote percentage as one vote count divided by the sum times 100
c. A "display Results" method that has no arguments and displays each candidate's names and vote percentage.

source:
#include <iostream>       //for cout
#include <string>       //for string
#include <stdlib.h>        //for rand, srand
#include <time.h>       //for time

using namespace std;
//DO NOT EDIT ANY CODE ABOVE THIS LINE EXCEPT FOR LINE 12 (EDITOR'S NAME)

class CElection
{
   public:
      
};

//DO NOT EDIT ANY CODE BELOW THIS LINE!
int main(void)
{
   //Instantiate a CElection object with three names:
   CElection TOOP("Alice","Bob","Other");

   //First display a hello message
   cout << "\n\n* Welcome to Decision 2019 *\n";

   //Randomize the PRN
   srand(time(NULL));

   int vote;
   for (int i=1;i<=10000;i++)
   {
       vote = rand()%5;
       switch (vote)
       {
       case 0:
       case 1:
           TOOP.votes[0]++;
           break;
       case 2:
       case 3:
           TOOP.votes[1]++;
           break;
       case 4:
           TOOP.votes[2]++;
       }
   }

   TOOP.calcPercentages();

   TOOP.displayResults();
}

​​​​​​​

Write a java program:

Write a program that creates a text file. Write to the file three lines each line having a person's name. In the same program Append to the file one line of  'Kean University'.  In the same program then Read the file and print the four lines without lines between.

Electronic Commerce - Airbnb

The focus of chapter 10 is on the topic of electronic commerce. E-commerce can be defined as using the Internet and the web to transact business. Global business to consumer e-commerce is soon expected to surpass $3 trillion dollars in sales. Needless to say, electronic commerce is revolutionizing the way we do business. By doing a search of the Internet or by other research methods, find how Airbnb has adopted an e-commerce business model.

Ponder the following questions (answer as many as you can):

1) What was the main driving force or strategy behind Airbnb decision to deploy e-commerce?

2) Has the adoption of e-commerce changed their traditional business model? In what ways?

3) Does their e-commerce business conflict with their traditional bricks and mortar business or does it enhance the traditional offering? Explain.

4) From table 10-5 on page 384 of the Laudon text, identify which Internet business model closely resembles the e-commerce model of this organization?

5) What role does social networking play in the marketing strategy of Airbnb?

6) Who are the organization's main competitors? How does this organization differentiate their e-commerce web site / offerings from their competitors?

7) Has the e-commerce aspect of their business been successful?

8) What recommendations would you make, if any, to improve the Airbnb web site or e-commerce features?

In Java, C, C++ or Python

Develop a simulation program to simulate an 8-port Ethernet switch. The switch initially has no knowledge about the hosts connected to each port. It learns frame addresses and stores-and-forwards the frames. The input text file "in.txt" contains information of the incoming frames, one frame per line. There are 4 pieces of data per line: frame ID, arrival port, frame source address, and frame destination address. The frames arrive at the switch in the order of which they appear in the input file. Destination address "X" indicate a broadcast frame. The output text file "out.txt" has 8 lines. Each line lists all the frames departing from each port, Here is an example:

"in.txt" contains 5 incoming frames:

F1 P2 B--A

F2 P6 D--C

F3 P5 E--B

F4 P7 F--D

F5 P6 D--X

"out.txt" should list the departing frames on each port:

P1: F1 F2 F5

P2: F2 F3 F5

P3: F1 F2 F5

P4: F1 F2 F5

P5: F1 F2 F5

P6: F1 F4

P7: F1 F2 F5

P8: F1 F2 F5

please  output out.txt for this input file input.txt

F1      P1      A--G
F2      P1      B--H
F3      P1      C--I
F4      P2      D--E
F5      P2      D--F
F6      P7      G--A
F7      P8      H--B
F8      P8      I--C
F9      P4      E--D
F10     P4      F--D
F11     P7      G--X
F12     P1      B--G
F13     P2      D--G
F14     P4      E--G
F15     P8      H--G
F16     P1      A--D
F17     P1      B--E
F18     P1      C--F
F19     P2      D--H
F20     P8      H--I

In c++ please.

Write a program that reads the contents of two text files and compares them in the following ways:

It should display a list of all the unique words contained in both files.

It should display a list of the words that appears in both files.

It should display a list of the words that appears in the first file, but not the second.

It should display a list of the words that appears in the second file, but not the first.

It should display a list of the words that appears in either the first or second file, but not both.

Give a Uml diagram illustarting aggregation. Include classes, fields methods instance fields etc. Use one supper class and two sub classes includes pseudo code for at least one method of each class. also expalin the whole part relationship in detail.

Write a java program:

Write a nested loop program creating an array list of three positions.  The first loop terminates with a sentinel value of which user is prompted for input to continue of quit.   Inside loop to enter in each position a prompted input of person's first name.  After the inside loop, edit the second array location making its value "Boston". Print the array's contents.

In databases, Normalization used to reduce redundancy and update anomalies from the tables. There are several Normal forms that are used in database 1NF, 2NF, BCNF etc.

The term functional dependency is very important in NF. Multivalued attributes, Atomicity property etc. plays important role in NF

Action Items

• You are requested to:
  • Submit 1NF and 2NF examples with explanation.
  • Discuss one of the following:
    • Discuss the need of Normal Forms.
• Discuss and explain why we need 2NF.
• Discuss the drawback of 1NF.
• Discuss Atomicity and multivalued attribute
• Discuss functional dependency
• All students have to participate at least twice in the discussions.

This program (in python) will display a set of authors and the number of novels written by each author in both a table and a histogram. You will ask the user for all of the information. Using what you learned about incremental development, use the following approach to create your program:

1. Prompt the user for the information about the table. First, ask for the title of this data set by prompting the user for a title for data. Output the title.
   
   Ex:

Enter a title for the data:
Number of Novels Authored
You entered: Number of Novels Authored

2. The table will have two columns; one for the authors and one for the number of novels. Prompt the user for the headers of two columns of the table. Output the column headers.
   
   Ex:

Enter the column 1 header:
Author name
You entered: Author name

Enter the column 2 header:
Number of novels
You entered: Number of novels

3. Prompt the user for data points. Data points must be in this format: string, int, representing the author and the number of novels written by the author. Store the information before the comma into a string variable and the information after the comma into an integer. The user will enter -1 when they have finished entering data points. Output the data points. Store the string components of the data points in a list of strings. Store the integer components of the data points in a list of integers.
   
   Ex:

Enter a data point (-1 to stop input):
Jane Austen, 6
Author: Jane Austen
Number of Novel(s): 6

4. Perform error checking for the data point entries as follows:

• If entry has no comma and is not -1
• Output: Error: No comma in string.

If the error occurs, output the appropriate error message and prompt again for a valid data point. You can assume that if a comma is present, then the data point is entered correctly.
Ex:

Enter a data point (-1 to stop input):
Ernest Hemingway 9
Error: No comma in string.

Enter a data point (-1 to stop input):
Ernest Hemingway, 9
Author: Ernest Hemingway
Number of Novel(s): 9

5. Output the information in a formatted table. The title is right justified with a minimum field width value of 33. Column 1 has a minimum field width value of 20. Column 2 has a minimum field width value of 23.
   
   Ex:

        Number of Novels Authored
Author name         |       Number of novels
--------------------------------------------
Jane Austen         |                      6
Charles Dickens     |                     20
Ernest Hemingway    |                      9
Jack Kerouac        |                     22
F. Scott Fitzgerald |                      8
Mary Shelley        |                      7
Charlotte Bronte    |                      5
Mark Twain          |                     11
Agatha Christie     |                     73
Ian Flemming        |                     14
J.K. Rowling        |                     14
Stephen King        |                     54
Oscar Wilde         |                      1

6. Output the information as a formatted histogram. Each name is right justified with a minimum field width value of 20.
   
   Ex:

         Jane Austen ******
     Charles Dickens ********************
    Ernest Hemingway *********
        Jack Kerouac **********************
 F. Scott Fitzgerald ********
        Mary Shelley *******
    Charlotte Bronte *****
          Mark Twain ***********
     Agatha Christie *************************************************************************
        Ian Flemming **************
        J.K. Rowling **************
        Stephen King ******************************************************
         Oscar Wilde *

For this program, you can assume that the user will not enter duplicate author names

When we look at cloud usage the categories can include some of but is not limited to following:

·          SaaS: Software as a Service

·          PaaS: Platform as a Service

·          IaaS: Infrastructure as a Service

·          MaaS: Monitoring as a Service

Research cloud computing. Complete a 2-3-page paper with an abstract and conclusion(plus cover sheet and reference page) that:

·          Describe at least 3 types of cloud computing service categories

·          What are the architecture considerations?

·          Give details of the function of the service with an example

·          What are the advantages and disadvantages of the service?

·          What are the security risk and protection considerations?

·          Do you see any impact on availability and performance?

Specific questions or items to address:

·          Describe at least 3 types of cloud computing service categories

·          What are the architecture considerations?

·          Give details of the function of the service with an example

·          What are the advantages and disadvantages of the service?

·          What are the security risk and protection considerations?

·          Do you see any impact on availability and performance?