Arrays, Arraylists and 2D Arrays Questions

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44. A project team just completed the draft of a book. The target audience to review the book will not be available on the day of the release, as there is a national conference of significant interest to the target audience going on the same weekend, the project manager decides to postpone that draft release date by week. Which of the following risk response strategies does this represent? A. Mitigate B. accept C. avoid D. transfer

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Write a program that reads test scores, print the test scores and the lowest test score. The number of tests is provided by the user. The test scores must be stored in an array. The program should have a method int lowest (int[] a) that takes an array as an argument and return the lowest score. Sample run: How many test do you have? 3 Enter test score 1: 50 Enter test score 2: 45 Enter test score 3: 100 Here are the scores you entered: 50 45 100 This is your lowest score: 45 Sample run How many test do you have? 5 Enter test score 1: 95 Enter test score 2: 89 2 Enter test score 3: 91 Enter test score 4: 100 Enter test score 5: 97 Here are the scores you entered: 95 89 91 100 97 This is your lowest score: 89

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Write a program that reads and stores the total rainfall for each of 6 months into an array of doubles. The program should have methods that return the followings: The total rainfall for the year The average monthly rainfall The month with the most rain The most with the least rain Your program should use the above methods to display the results. Enter rainfall for month 1: 5.1 Enter rainfall for month 2: .05 Enter rainfall for month 3: 1.15 Enter rainfall for month 4: 3.25 Enter rainfall for month 5: 6.1 Enter rainfall for month 6: 1.0 Total rainfall =17.10. Average rainfall = 2.85. Month with most rain = 5. Month with least rain = 2. - -

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31. During a weekly meeting, a project manager mentioned a decision was made on june 17 to include future state workflows in onboard training. Which of the following communication methods should be used? A. Project communications plan B. Project dashboard C. Project schedule D. Project status report

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B.9 Programming Environments and Related Costs Programming environment: Python 3.9 along with Numpy, Pandas, Seaborn, matplotlib. pyplot, ipywidgets, and default Python libraries A file converter to convert any common database file types into CSV files Statistics tracking software for tracking usage statistics during the first deployment There are no associated costs with the programming environment as all of these tools are available as no-cost open-source software. Environment Costs: We will need workstations and storage hardware to facilitate the deployment phases. Our developers will need workstations that can connect to a central network to begin programming, testing, and collecting data analytics, We are budgeting $25,000 to the environment costs and these costs will be accounted for in the first installment payment Human Resource Requirements We require a staff of six developers to complete the project. They will each be paid a monthly salary of $5,000 per month The estimate time of completion is two months so a total of $60,000 of the total budget should go towards employee salaries. Phase one (Deployable application): 120 development hours – total cost $150,000 (this includes the equipment cost and the first month salary payments). Phase two (Major Feature Updates and Bug Fixes): 160 development hours + 1 week of allocated backlog - total cost: $350,000. The additional costs for this phase are incurred from the following o More developer hours o Deployment costs associated with getting the product to customers o Hiring outside testers o Increased hardware requirements needed to scale the application o A reserve for unseen costs

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B.4 Data Needed The data used in the program is stored in data CSV files and are required for the application to process any meaningful data. This CSV files represent celebrity data analysis datasets and were randomly generated used a tool provided by www.kaggle.com. The file works by using the CSV reader/writer tool that is built into Python. B.5 Project Methodology Our team will be using the Agile Scrum Methodology to produce the software. We choose the Agile development methodology because we feel that continuous improvements and change process will occur. Scrum is adaptable, fast, flexible, and effective agile framework that is designed to deliver value to the customer throughout the development of the project. Below we provide an overview of the workflow process:

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Arrays, Arraylists and 2D Arrays Solutions

Create a 2 Dimensional Array that holds integers randomly generated between 0 and 100.[ [2] The array should be 10 x 10. (Remember not to hard code the size of the array in the loops) Create a menu method to offer user a choice to do the following: [12] Create following methods and call them in your menu method: • Initialize Array – to randomly assign values to the array's elements between 0 and 100 [ 12] • Display Array - to display the content of the array [ 12] • Sum Array – Total of all values in the array [ 13] • Average of the Array - Uses the return of Sum Array method [13] • Sum By row – Ask the user to enter a row number and then add the values in that row. You must check if the row number entered is valid [14] • Sum By Column - Ask the user to enter a Column number and then add the values in that Column. You must check if the Column number entered exists. [14] • The program must be menu driven so the user can select what they want to do. [12] • The program should repeat until the user enters option number 7. (Remember you can use System.exit(0) ) [4] Comments and naming convention [12] Sample output to the screen: 1. Initialize Array 2. Display Array 3. Sum Array 4. Average of the Array 6. Sum By row 6. Sum By Column 7. Exit Please enter your choice:

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6. Discuss the strengths and weaknesses of the self- adjusting data structures (e.g., the hash table). The chaining hash table ensures that we never run out of space and there will be no hash collision. As we scale up the entries, all that happens is that the linked lists just keep on growing. Insertion and deletion are extremely simple to implement-indeed. As we know chaining hash is simply an array of linked lists. The problem here is that the linked lists grow longer and longer and longer. It will make grow the worst-case space-time complexity at the rate of O(n) for n items in the linked list. This can be eliminated by increasing the size of the hash as the packet numbers grow. D. Identify a self-adjusting data structure, such as a hash table, that can be used with the algorithm identified in part A to store the package data. We used the chaining hash table with linear probing for searching as a self-adjusting data structure for the current solution. The main data structure used is a chaining hash table. It can perform the insertion and deletion as fast as direct hashing. While the searching is comparatively slow with direct hashing, it ensures no hash collision and storage efficiency. It is an array of linked lists; it can expand automatically as needed. The “Get_fastest_route” algorithm uses the unique package id as a key for the hash table. The hash table has four basic functions: insert, update, delete and search. In the first stage of the algorithm, the insert inserts all 40 packets in the hash table by packet id as a key. The packet is used in stages 2 and 3 for searching and sorting those packets further. The only downside of chaining hashing is slow searching, which can be eliminated by increasing the size of the hash as the packet numbers grow.

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Requirements: - no global variable is allowed. - there is no printing or reading in the function (e.g. there is no usage of cin and cout). Printing and reading are done outside these functions. - there is ng multiple return statements in a function. In another word, there should be only at most one return statement in each function. R. Write a function named "rotate" that accepts an array of integers and its size and a boolean "isLeft" flag to indicate the direction of left or right. If the flag is true, it will rotate all the values to the left and moving the value of the first element in the array to last. If the flag is false, it will rotate all the values to the rigth and moving the last element in the array to the first. For example, for the array of {10, 20, 30, 40} if "isLeft" flag is true, it will become {20, 30, 40, 10} if "isLeft" flag is false, it will become {40, 10, 20, 30).

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EXPERIMENT 3: REPETITION Given a large set of numbers x; where i=1, 2, .......N, the mean m of these is defined as: i- m *; N Write a Program that takes the input N and calculates the mean (m) EXPERIMENT 4: SWITCH The student is required to write a C++ program which requests a Quadratic equation and displays whether that Quadratic equation has real roots or not. EXPERIMENT 5: SWITCH a The student is required to write a C++ program which requests a two polar Vectors and converts them to the cartesian system.

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39 What is unit testing? A test that is performed after an issue has been fixed to make sure that the code still works as designed A test that requires a group meeting of developers and a tester to go over the code statement by statement A test that is performed by the developer before code is turned over to QA for testing A test that is conducted without knowledge of the intemal working of the code

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SVO After Intuit migrated numerous applications to Amazon Web Services, it 12 Multiple Choice Part 12 of 12 shut down data centers; they were no longer needed. O added new data centers: to provide multiple access points. O added new data centers: to provide premium services maintained its data centers: many clients preferred the old platform O maintained its data centers: to provide backup services