Python 3.7:

1. Write a generator expression that repeats each character in a given string 4 times. i.e. given “gone”, every time you call the next method on the generator expression it will display “gggg”, then “oooo”, … etc and instantiate it to an object called G.  G = (…..) # generatorExpression object

2. Test and verify that iter(G) and G are the same things. What does this tell you about the nature of a Generator object/expression?

3. Assign Iter(G) to an iterator object called it1 and advance it to the next element by using next method.

4. Instantiate a new Iter(G) object called it2. Use the next method and advance it to the next element. Observe the result and compare it with the results of it1.

5. Does the new Iter(G) object start the iterator from the start of the string object? Write down your understanding/conclusion from this experiment.

6. How can you get back the Iter(G) to point back to the beginning of the string?

Write a java program creating an array of the numbers 1 through 10. Shuffle those numbers.

Randomly pick a number between one and ten and then sequentially search the array for that number.

Once the number is found, place that number at the top of the list.

Print the list. Perform #3 thru #5 ten times.

A. What can happen if pointer is uninitialized. Explain the concept and what should ideally be done
in such case

B. Memory was allocated initially for 5 elements, later on two more elements added to list. How can
space be managed in such case. Implement the scenario in C.

• What are some Linux Server operating system failover technologies? What about premium ones that you can pay for?
• What are some Windows Server operating system failover technologies? What about premium ones that you can pay for?
• Discuss the process for failover for both subjects you chose!

Consider the following three tables, primary and foreign keys.

Table Name        SalesPeople

Attribute Name                                Type                                      Key Type

EmployeeNumber             Number                               Primary Key

Name                                   Character

JobTitle                                  Character           

Address                                 Character

PhoneNumber                     Character

YearsInPosition                             Number

Table Name        ProductDescription

Attribute Name                                Type                                      Key Type

                ProductNumber                Number                               Primary Key

                ProductName                  Character           

                ProductPrice                   Number

Table Name        SalesOrder

Attribute Name                                Type                                      Key Type

                SalesOrderNumber        Number                               Primary Key

                ProductNumber               Number                               Foreign Key

                EmployeeNumber           Number                               Foreign Key

                SalesOrderDate                Date

Assume that you draw up a new sales order for each product sold.

Develop the following queries in SQL:

a.       All the Sales People with less than four years in position.

b.      All the Product Names sold on April 4^th.

c.       All the Products sold by Sales People less than 3 years in the position.

The program is not asking y/n :look below

Enter your grade:0.00
F
Continue (y/n)y
Enter your grade:3.33
B+
Enter your grade:
--------------------------------------------

def calci():
    grade = float(input("Enter your grade:"))
    while (grade <= 4):
        if (grade >= 0.00 and grade <= 0.67):
            print("F")
            break
        elif (grade >= 0.67 and grade <= 0.99):
            print("D-")
            break
        elif (grade >= 1.00 and grade <= 1.32):
            print("D")
            break
        elif (grade >= 1.33 and grade <= 1.66):
            print("D+")
            break
        elif (grade >= 1.67 and grade <= 1.99):
            print("C-")
            break
        elif (grade >= 2.00 and grade <= 2.32):
            print("C")
            break
        elif (grade >= 2.33 and grade <= 2.66):
            print("C+")
        elif (grade >= 2.67 and grade <= 2.99):
            print("B-")
            break
        elif (grade >= 3.00 and grade <= 3.32):
            print("B")
            break
        elif (grade >= 3.33 and grade <= 3.66):
            print("B+")
        elif (grade >= 3.67 and grade <= 3.99):
            print("A-")
            break
        elif (grade == 4.00):
            print("A")
            break
        elif (grade == 4.00):
            print("A+")
        else:
            print("Invalid input enter FLOAT only")
        calci()


def main2():
    question = input("Continue (y/n)")
    if question == "n" or question == "N":
        print("Bye")
    elif question == "y" or question == "Y":
        calci()
        main2()
    else:
        print("Invalid Input-Enter either y or n")
        main2()


print("ISQA 4900 quiz")
calci()
main2()
 fix the error

(Programming Language: Python)

It's trivial that the value of a number remains the same no matter how many zeros precede it. However, adding the zeros at the end of the number increases the value * 10. Jasmine is tired of seeing \001/100" on her tests (well yes, no one really writes 001, but Jasmine's teacher finds it funny to do so). So, she managed to login to her teacher's computer and now wants to design a function that can move the 0's in her grade to the end before her teacher uploads her grades. Although we don't agree with Jasmine's tactics, Krish (Jasmine's mentor) told us to help her out by finishing the `move zeros' function. This function should move all the 0's in the given list to the end while preserving the order of the other elements.

Remember that this function needs to modify the list, not return a new list!

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

def move_zeros(lst: List[int]) -> None:

"""

Move all the 0's in lst to the END of the lst *in-place*, i.e. *modify* the list, DONT return a new list

>>> lst = [1, 0, 2, 3]

>>> move_zeros(lst)

>>> lst [1, 2, 3, 0]

"""

pass

Explain the bit-plain slicing ? Subject is digital image processing

1 Objective The purpose of this assignment is to test your familiarity with Java I/O, and if-else statements. Please submit your file as ”Shipping.java”

2 The Backstory Amazon.com wants to try out it’s new ‘Delivery by Drone” service and has recruited you to write a Java console application to calculate the shipping cost. They are going to charge the customer based on various criteria, as shown below:

Amazon Prime members get a 10% discount.

3 Specifications

• First, ask for the weight of the package (in kilograms). The user can enter this as a decimal number, so use type double. Values of 0 or less are invalid (i.e. a package has to weigh something). Do not accept weights of more than 20 Kg either, as this is the maximum weight the company will ship).

• If the user enters an invalid choice, print an appropriate error message and abort the program. (See sample outputs for error messages).

• Now ask the user to enter the distance to ship the package (in miles). This will be entered as an integer. 0 miles or less is considered invalid (must be a positive distance to ship). Also, do not accept distances of more than 3000 miles - consider 3000 miles to be the company’s maximum shipping distance.

• If the user enters an invalid choice, print an appropriate error message and abort the program. (See sample outputs for error messages).

• For a valid weight and distance, compute the shipping charges according to the chart above, noting that ”rate per 50 miles shipped” means that anything up to 50 miles is at the 50 mile rate, anything above 50 up to 100 miles is at the 100 mile rate, and so on.

• Ask if the user is an Amazon Prime member. If the user says Yes, give them a 10% discount.

• Print out the following results: – The package weight (default format), in kilograms. – The shipping rate for this package, to 2 decimal places, (money format). – The number of miles chosen. – The calculated shipping cost, to 2 decimal places (money format).

• See the Sample Runs below for expected output messages and numerical output formats.

• Also note: The System library has a method called exit(), which will cause a program to terminate immediately. It requires a parameter - usually, it is sufficient to just pass in the value 0

4 Sample Runs

Sample Run 1:

Welcome to Amazon Shipping Calculator

Please enter the weight of the package, in Kg: 19.4

Please enter the distance to be shipped (in miles): 2318 Are you an Amazon Prime member? (Yes/No): No

Package weight = 19.4 Kg Shipping rate = $40.60 per 50 miles Number of miles = 2318

Total shipping charges = $ 1908.20

Goodbye

Sample Run 2:

Welcome to Amazon Shipping Calculator

Please enter the weight of the package, in Kg: 8.4 Please enter the distance to be shipped (in miles): 134

Are you an Amazon Prime member? (Yes/No): Yes

Package weight = 8.4 Kg Shipping rate = $22.43 per 50 miles Number of miles = 134

Total shipping charges = $ 60.56

Goodbye

Sample Run 3 (error case): Welcome to Amazon Shipping Calculator

Please enter the weight of the package, in Kg: -5 Invalid package weight. Program aborted

Sample Run 4 (error case): Welcome to Amazon Shipping Calculator

Please enter the weight of the package, in Kg: 21.8 Cannot accept packages over 20 Kg. Program aborted

Replace <missing code> with your answer. Your code should approximate the value of π (~3.141592653589793). You can approximate pi using the following formula:

π = 4 * (1 - 1/3 + 1/5 - 1/7 + 1/9 - 1/11 + 1/13 - 1/15 + …)

For this problem, let n be the number of terms to add in the series. For example, if n = 5, your code should compute the following: 4 * (1 - 1/3 + 1/5 - 1/7 + 1/9). If n = 3, your code should compute 4 * (1 - 1/3 + 1/5)

public static void main(String[] args)
{
Scanner scanner = new Scanner(System.in);
int n = scanner.nextInt();

int piApprox = <missing value>;

<missing code>

System.out.println("piApprox = " + piApprox);

}

What is a good website that uses visual organization and a very bad one. explain how each of the 4 principles (proximity, alignment, consistency, contrast) of visual organization are applied well or not applied.

Create a Java Program to calculate compound interest.

This can all be done in the main() method.

1. Create a double variable named currentBalance.
2. Create a double variable named newBalance.
3. Create a final double variable named INTEREST_RATE and assign 1.05 to it.
4. Create a int variable named yearCount.
5. Prompt for the "Number of years to invest" and store the input into the yearCount variable.
6. Prompt for the "Amount to Invest" and store this in the currentBalance variable.
7. Assign currentBalance to newBalance.
8. Using a 'FOR' loop, create and display the balance for each year. Additional variables may be required ( such as for the current year being displayed)
   1. newBalance= newBalance * INTEREST_RATE;
   2. Review the FOR loop example in Chapter 6 -Section 6.3 page 92
   3. Format the displayed balance to show 2 decimal places only.

Example:

Number of years to invest:5

Amount to Invest:1000

Year 1 balance =  1050.00
Year 2 balance =  1102.50
Year 3 balance =  1157.63
Year 4 balance =  1215.51
Year 5 balance =  1276.28


   Display the message "You have doubled your investment" and terminate the loop if/when you have more than doubled your initial investment.