Introduction to Java Programing

Using Loop

• Create a simple calculator program using loop
• Ask user to input two numbers using scanner class
• Print the instruction of the menu for the calculator program
• Ask user to press 0 to Quit
• Ask user to press 1 to Add
• Ask user to press 2 to Substract
• Ask user to press 3 to Multiply
• Ask user to press 4 to Divide
• Perform correct calcuation based on user inputs and print the result
• Print error message if user enter wrong input
• Repeate the process until user quits the application.

Give a high-level description of what regular expressions are, and how JavaScript uses them.

•Try to plot these three equations in the rage of x=0 to 1 using “for” and “if” commands

•Y=2sin(2πx)

•Y=2cos(2πx)

•Y=log(x)

•Y=e(x)

I only know how to plot without if and for command.

no idea about using if and for command to get this figure.

A 20kW electric motor, which is running at 43 rev/s, is used to drive a crusher that operates 24 hours per day. An engineer has specified 212 mm and 315 mm pitch diameters for the small pulley and large pulley respectively; and C 3454 V-belt type.

a) What should be the conservative service factor for this belt and pulley system?

b) Calculate the center distance between the pulleys?

c) Calculate allowable power, design power, and required number of belts. (Take design factor nd as 1.)

d) Calculate centrifugal tension, forces at tension side and loose side, initial tension, and factor of safety. (Take friction coefficient including wedge effect as 0.5123.)

Shopping Cart App (C#)

Please create a C# Console (.NET Framework) application which reads from the user, the price of items in their shopping "cart". Be sure to tell the user how to stop (or ask them if they want to stop) entering prices.

Items can be priced any positive number greater than zero.

When the user has entered the prices for all items in their "cart", calculate the subtotal (the sum of all item prices).

Next, check if the user is a member of our Frequent Shopping Club. If so, take 10% off the subtotal price.

Finally, calculate the tax owed (the tax RATE is 4.5%), and then the total (subtotal + tax OWED = total).

Display the subtotal, discount (will be zero if not a member of the Frequent Shopping Club), tax owed, and total.

You should use While loops, IF statements, and TryParse statements to ensure all input is correctly entered.

The objective of the question is to test the Hypothesis If the Mean travel time in minutes between Point A to Point B is equal to the mean of the travel time in minutes from Point B to your A. First you must find the mean and standard deviations. Then perform and list the complete required steps for the TWO required Hypothesis tests and use the P-Value as a rejection Rule for both tests.

One Hypothesis test is an F test for the equality of the variances of travel Times and the second test is a T test for the equality of the means of travel times in minutes. The F test must be performed first in order to select either Case1 or Case 2 for the T-test.

Recorded Time values in minutes from point A to point B in minutes: 32, 34, 51, 30, 29, 35, 36, 29, 32, 29, 33, 32, 29, 30, 33, 30, 30, 33, 30, 31, 35, 35, 34, 33, 31, 34, 30, 30, 29, 34, 32, 35, 29, 30, 32, 30, 33, 31

n_A=38

Recorded Time values in minutes from point B to point A in minutes: 36, 28, 48, 28, 27, 54, 34, 29, 26, 34, 33, 42, 29, 34, 31, 4, 27, 42, 28, 45, 26, 43, 32, 30, 27, 29, 29, 35, 26, 31, 28, 27, 28, 32, 41, 34, 28, 31

n_B=38

• Take advantage of the fact that the range of the integers in the list is fixed (0 to m, where m is the largest ID you can find in the linked list). Use a boolean array seen of length m+1 to indicate if elements in the array have been seen before. Then determine if there are duplicates by performing a single pass through the unsorted list. Hint: while traversing the list, seen[item] = True if integer item has been seen before in the search.
• 0
  1
  15
  112
  5000
• 150
  112
  5000

Q1: You are given a responsibility as IT manager to implement knowledge management system for Ajman University (AU) students. How would you design a knowledge management system that will help student during registration process:

a)         What issues can a KM system be of help for them (AU students) in registration process? [2]

b)         What are the needed infra structure, mechanisms and technologies, and applications that could be used in managing the processes of that system? [2]

c)         Give a sequence of sub-processes that could be used in that system [2]

HB ltd has been experiencing dwindling sales in its business operations due to competitions from other agents dealing in communication equipment. On 1 January 2006, HB Ltd decided to diversify its operations to the information technology (IT) industry by acquiring SL Ltd, a company dealing in the manufacture of IT equipment and software design.

The summarized financial statements of HB Ltd and SL Ltd were as follows:

Income statement for the year ended 30September 2006

Statement of financial position as at 30 September 2006

                                                       10,000        3,600

Total equity and liabilities            45,600        16,000

Additional information:

1. HB ltd acquired 80% of ordinary share capital of SL ltd for sh. 10,280,000 and also acquired half of the 10% debentures in the company.
2. The fair value of the assets of SL Ltd at the date of acquisition were the same as their book values except for plant whose fair value were more by sh. 3.2 million. As at 1 January 2006, the plant had a remaining useful life of four years. SL Ltd depreciates plant on straight line basis on cost.
3. During the post-acquisition period, HB Ltd sold goods to SL Ltd for sh 12 million. These goods had a cost HB Ltd sh 9 million. Subsequently, SL Ltd sold some of the goods purchased from HB at sh 10 million for 15 million.
4. On 30 June 2006, HB Ltd and SL Ltd paid dividends of sh 1000,000 and 500,000 respectively.
5. Included in the account receivables and payables is sh 750,000 being the amount SL Ltd owed HB Ltd.
6. Goodwill is considered to be impaired by 25% as at September 2006. Goodwill impairment is classified as an administrative expense by the group company.

Required

1. Group Income statement for the year ended 30 September 2006.
2. Group Statement of financial position as at 30 September 2006.

If you were shown three different interference patterns (double slit, single slit, and diffraction grating), how could you tell the difference between them?

Newton thought that light wasn't a wave because he couldn't see diffraction or interference. Imagine you are transported back in time to convince him otherwise. Write a 1-2 paragraph explanation for Newton explaining why he does not see these features despite the wave nature of light.

Describe some of the benefits of using a survey design in quantitative research.

In Java,

Programmers do all money calculations using cents, represented as an integer, like 635 cents. A useful method in such an approach might convert cents into separate dollar and cents values. Write a method centsToDollarsCents whose parameter is given cents and returns an array of integers containing numDollars and numCents, respectively. If the first argument is 635, the array would contain [6, 35].

I understand how to solve for numDollars and numCents but I am having trouble returning the array. If anyone could help that would be appreciated.

Consider the reaction

Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s)

at 63 ∘C , where [Fe2+]= 2.90 M and [Mg2+]= 0.210 M .

Part A

What is the value for the reaction quotient, Q, for the cell?

Express your answer numerically.

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Correct

Part B

What is the value for the temperature, T, in kelvins?

Express your answer to three significant figures and include the appropriate units.

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Correct

Part C

What is the value for n?

Express your answer as an integer and include the appropriate units (i.e. enter mol for moles).

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Correct

Part D

Calculate the standard cell potential for

Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s)

Express your answer to three significant figures and include the appropriate units.

SubmitHintsMy AnswersGive UpReview Part

Correct

Part E

What is the cell potential for the reaction

Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s)

at 63 ∘C when [Fe2+]= 2.90 M and [Mg2+]= 0.210 M .

Describe the ins and outs of Change Management. Address the following issues:

• What factors should be taking into consideration by software developers when developing large-scale systems?
• What problems can arise when multiple people are working on a single project at the same time?
• What difficulties can arise when developers are located at different sites?
• What documents should be used to facilitate Change Management and why?

Case Application 3: TEAM FUN!

Tony, the new director of human resources, and Edna, the compensation and benefits manager, are hanging employment legislation posters in RETREAT, the TEAM FUN! employee cafeteria. Edna offers, “I remember some woman who applied for a job to advertise men’s baseball gear and sued when she didn’t get the job. The EEOC said she had no case. A couple of years ago, we moved Fred from fitness demos to stock management because he couldn’t do the treadmill or lift the big weights anymore. There was talk about an age discrimination case because he was 57, but that never went anywhere.” Tony asks, “Do you realize that all of the warehouse workers are male and all the RETREAT workers are female?” Edna replies, “What’s your point?” Tony waves his hand at the EEOC information they have displayed. Edna shrugs, “This is the best job I ever had. If you ask anyone else who works here, they will say the same thing.”

Questions: 1. What is the probable defense for the baseball gear job (BFOQ, 4/5ths rule, glass ceiling)? Explain.

2. Why didn’t Fred’s age discrimination case go anywhere?

3. Is TEAM FUN! open to discrimination charges in other areas?

4. What should be done to protect TEAM FUN! from discrimination charges?