Write a C++ program that reads daily weather observation data from a file and writes monthly and annual summaries of the daily data to a file.

a. The daily weather data will be contained in a file named wx_data.txt, with each line of the file representing the weather data for a single day.

b. For each day, the date, precipitation amount, maximum temperature, and minimum temperature will be provided as tab-separated data with the following format: 20180101 0.02 37 23 20180102 0.00 42 18 <...data for the remainder of the year here...>

c. For the first entry in the daily data above, the date is 20180101 (1 January 2018), the precipitation amount is 0.02 inches, the maximum temperature is 37°F, and the minimum temperature is 23°F.

d. You may assume that the weather data is complete (i.e., there is data for each day of every month of the year) and that the data contains no errors.

2. The program must read from file each daily weather observation and write a summary by month and year to a file named wx_summary.txt.

a. The output that is written to file must have the following format:

-------------------

January

-------------------

Precipitation

Total: 3.12

Average: 0.10

Temperature

Maximum: 62

Minimum: 39

-------------------

February

-------------------

Precipitation

Total: 10.18

Average: 0.36

Temperature

Maximum: 78

Minimum: 64

-------------------

March

-------------------

Precipitation

Total: 2.02

Average: 0.07

Temperature

Maximum: 73

Minimum: 53

-------------------

April

-------------------

Precipitation

Total: 3.99

Average: 0.13

Temperature

Maximum: 77

Minimum: 58

-------------------

May

-------------------

Precipitation

Total: 3.73

Average: 0.12

Temperature

Maximum: 87

Minimum: 77

-------------------

June

-------------------

Precipitation

Total: 8.47

Average: 0.28

Temperature

Maximum: 92

Minimum: 75

-------------------

July

-------------------

Precipitation

Total: 6.79

Average: 0.22

Temperature

Maximum: 89

Minimum: 74

-------------------

August

-------------------

Precipitation

Total: 7.54

Average: 0.24

Temperature

Maximum: 82

Minimum: 74

-------------------

September

-------------------

Precipitation

Total: 18.25

Average: 0.61

Temperature

Maximum: 89

Minimum: 74

-------------------

October

-------------------

Precipitation

Total: 3.75

Average: 0.12

Temperature

Maximum: 82

Minimum: 72

-------------------

November

-------------------

Precipitation

Total: 5.62

Average: 0.19

Temperature

Maximum: 77

Minimum: 63

-------------------

December

-------------------

Precipitation

Total: 16.55

Average: 0.53

Temperature

Maximum: 72

Minimum: 67

-------------------

Max temp for year: 98 in May

Min temp for year: 21 in January

Max precip for year: 18.25 in September

A refrigeration system is working on vapour compression cycle using R134a as refrigerant. The objective is to keep the refrigerated space at temperature of 243K. The vapours enter the compressor at 0.6 bar and at 239K and after compression leaves at 12 bar and 338K. The condenser is water cooled, in which water is supplied at 291 K at mass flow rate of 15 Kg/hr. and leaves at 299K. The refrigerant leaves the condenser temperature of 315K after rejecting heat. The compressor is not perfectly insulated and it absorbs 450 J/sec of heat from the surrounding. Analyze the refrigerator by determining

Dryness fraction of refrigerant (x) at inlet of evaporator inlet, Refrigeration load in tones of refrigeration, COP of the refrigerator

Draw TS diagram of the process and label all operating temperature and pressure

Explain how to use a Scanner object to read information from a page on the internet. Give an example.

Explain what a wrapper classes are and how they are used in Java. Give an example.

What is an ArrayList object? How does is it similar to and how does it differ from a traditional array.

What is inheritance? How is it useful in software projects. How is the is-a test related to inheritance?

What is an exception? Explain how to use try/catch blocks to prevent a program from crashing.

What is refactoring? What are some of the ways that Eclipse can help you with refactoring?

What is the output? Explain how you obtain this answer by hand, not using a computer.

String alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
for(int i = 1; i <= 26; i *= 2) {
   System.out.print(alphabet.charAt(i - 1));
}

What is the output? Explain how you obtain this answer by hand, not using a computer.

int n = 500;
int count = 0;
while (n > 1) {
    if (n % 2 == 0) {
        n /= 3;
    }
    else {
        n /= 2;
    }
    count++;
}
System.out.println(count);

A Java Swing application contains this paintComponent method for a panel. Sketch what is drawn by this method.

public void paintComponent(Graphics g) {
    super.paintComponent(g);    
    g.setColor(Color.black);
    g.fillRect(100, 100, 200, 100);
    g.fillRect(300, 200, 200, 100);
    g.fillRect(500, 100, 200, 100);
}

An aqueous solution of magnesium oxalate is prepared by dissolving 4.46 g of magnesium oxalate in 1.51×10² g of water. The density of the solution is 1.01 g mL^-1.

a) Determine the mass percent of magnesium oxalate in the solution.

b) Determine the mole fraction of magnesium oxalate in the solution.

An aqueous solution of nickel(II) chloride is prepared by dissolving 5.61 g of nickel(II) chloride in 4.53×10² g of water. The density of the solution is 1.34 g mL^-1.


Determine the molarity (in mol/L) of nickel(II) chloride in the solution.

Freight Terms

Determine the amount to be paid in full settlement of each of two invoices, (a) and (b), assuming that credit for returns and allowances was received prior to payment and that all invoices were paid within the discount period. If required, round the answers to the nearest dollar.

a)At a distance of 0.216cm from the center of a charged conducting sphere with radius 0.100cm, the electric field is 440N/C . What is the electric field 0.604cm from the center of the sphere?

b)At a distance of 0.216cm from the axis of a very long charged conducting cylinder with radius 0.100cm, the electric field is 440N/C . What is the electric field 0.608cm from the axis of the cylinder?

c)At a distance of 0.180cm from a large uniform sheet of charge, the electric field is 440N/C . What is the electric field 1.23cm from the sheet?

With reference to Sweezy’s model of the kinked demand curve, explain the reasons why we might expect price to be unresponsive to small variations in cost in the case of oligopoly. What are the main limitations of the kinked demand curve model?  

b. Quote real world examples of oligopolistic firms that have benefited from a first-mover advantage.

Companies are expected to act ethically and ensure their employees are also acting ethically. However, as we know the level of ethics expected and those practiced are not always the same. Take a moment to share your thoughts on the following questions about ethics.

• Do you believe that ethics can be taught? Why or why not?
• If you were the CEO of a company how would you ensure employees operated at a high ethical standard?

A convergent-divergent nozzle operates under out-of-design conditions, resulting in
formation of a normal shock wave in the diverging section. A large reservoir
supplies air to the nozzle at 400 kPa and 800 K. The throat of the nozzle is 0.2 m2. The number
Mach upstream of the shock wave is M1 = 2.44. The nozzle area at the exit is
0.7 m2. Calculate the area of ​​the nozzle at the location of the shock wave and the temperature of the
air when leaving the nozzle

JAVA

Personal Information Class

Design a class that hold the personal data: name, address, age and phone number. Write appropriate methods (constructor, getters ad setters. Demonstrate the class by writing a program that creates three instances of the class. You can populate information in each object using Scanner class.

Sauer Food Company has decided to buy a new computer system with an expected life of three years. The cost is $430,000. The company can borrow $430,000 for three years at 13 percent annual interest or for one year at 11 percent annual interest. Assume interest is paid in full at the end of each year.  

a. How much would Sauer Food Company save in interest over the three-year life of the computer system if the one-year loan is utilized and the loan is rolled over (reborrowed) each year at the same 11 percent rate? Compare this to the 13 percent three-year loan.
  

b. What if interest rates on the 11 percent loan go up to 16 percent in year 2 and 19 percent in year 3? What would be the total interest cost compared to the 13 percent, three-year loan?
  

I am a physics undergrad and thinking of exploring quantum information theory. I had a look at some books in my college library. What area in QIT, is the most mathematically challenging and rigorous? From what I saw in the books, most topics was just simple linear algebra. I am looking for an area which is mathematically more rich, and uses maybe more concepts from theoretical computer science, number theory, discrete maths, algebra etc. Classical cryptography is an area on the interface of maths and TCS which uses many areas of maths such as number theory, algebra, ellptical curves. Is the quantum cryptography also rich in mathematics? What are the prerequisites? If not, please could you suggest some areas that I are mathematically rich in QIT?

java - Write a method that sums all the numbers in the major diagonal in an n x n matrix of double  values using the following header:

public static  double sumMajorDiagonal(double [][] m)

Write a test program that first prompts the user to enter the dimension n of an n x n matrix, then asks them to enter the matrix row by row (with the elements separated by spaces). The program should then print out the sum of the major diagonal of the matrix.

SAMPLE RUN:

Enter dimension n of nxn matrix:Enter row·0:Enter row 1:Enter·row 2:Enter row 3:17.1

(can have 3 or 4 rows)

What is the working-set modeling?

Present Values

Use Present Value Tables or your calculator to complete the requirements below.

You have an opportunity to purchase a government security that will pay $217,000 in 5 years.

Required:

Round your answers to the nearest cent, if rounding is required.

1. Calculate what you would pay for the security if the appropriate interest (discount) rate is 6% compounded annually.
$

2. Calculate what you would pay for the security if the appropriate interest (discount) rate is 10% compounded annually.
$

3. Calculate what you would pay for the security if the appropriate interest (discount) rate is 6% compounded semiannually.
$