**Problem Statement: Memory Alignment and Structs**Following is a definition of a `widget` and a declaration of an array `A` that contains 10 `widgets`. The sizes of a `byte`, `short`, `int`, and `long` are 1, 2, 4, and 8 bytes, respectively. Alignment is restricted so that an n-byte field must be located at an address divisible by n. The fields in a `struct` are not rearranged; padding is used to ensure alignment. All `widgets` in `A` must have the same size.```cstruct widget short s byte b long l int iend widgetwidget A[10]```**Question:**Assuming that `A` is located at a memory address divisible by 8, what is the total size of `A`, in bytes?**Explanation:**To calculate the total size of `A`, each `widget` must be aligned correctly:1. **`short s` (2 bytes):** Requires alignment on a 2-byte boundary.2. **`byte b` (1 byte):** Follows directly after `short`, adding 1 byte.3. **`long l` (8 bytes):** Needs alignment on an 8-byte boundary, likely introducing padding if the current offset isn't a multiple of 8.4. **`int i` (4 bytes):** Needs alignment on a 4-byte boundary.Calculate the total size of one `widget` by summing the space used by each field, including any padding for alignment. This is then multiplied by 10, as there are 10 `widgets` in the array `A`. If `A`'s start address is a multiple of 8, no additional alignment padding is needed.

Answered: 11. Following is adefinition of a…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Java code 8. Given an existing ArrayList named friendList, find the first index of a friend named Sasha and store it in a new variable named index. 9. Given that an ArrayList of Integers named numberList has already been created and several values have already been inserted, write the statement necessary to insert the value 25 at the end of the list. 10. Declare an integer array named evens and fill it with even numbers from 2 through 10 in one statement. 11. Given an existing array named pets, find the size of the array and store it in a new variable named numPets. 12. Given an existing ArrayList named contactList, find the number of contacts in the ArrayList and store it in the existing variable named numContacts.
Java Task 1 Create an object of type FitnessExperiment that stores an array of StepsFitnessTracker, DistanceFitnessTracker, and HeartRateFitnessTracker objects. You could use code such as the following to initialise the array containing the fitness tracker measurements: FitnessTracker[] trackers = { new StepsFitnessTracker("steps", new Steps(230)), new StepsFitnessTracker("steps2", new Steps(150)), new StepsFitnessTracker("steps2", new Steps(150)), new HeartRateFitnessTracker("hr", new HeartRate(80)), new HeartRateFitnessTracker("hr", new HeartRate(80)) }; In the FitnessExperiment class, complete the implementation of the methods named getTotalSteps()and printExperimentDetails(). The comments in the code specify how they should operate and provide you with additional hints to get you started. You can use the method getSteps()in StepsFitnessTracker, but think how you will know the real type of each object in the array of fitness trackers (trackers in the example above). FitnessTracker…
1)Examine the above code that creates the array: a)How is the base type of the array specified? b)How is the length of the array specified? c)How many Strings are actually stored in the array after the array has been created? d)How is the base type of the ArrayList specified? e)How is the capacity of the ArrayList specified? f)What is the capacity of the ArrayList? g)What is the size of the ArrayList?
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Create an array of objects of the Person class, of size 4. Create three objects of the Person class, with values, and assign the objects to the array. Loop through the array and print the name, job, and email of all Personobjects.
AHPA #4: The C ATM Machine• Two people, "a" and "b", have checking and savings accounts.• Create a 2x2 array to hold their amounts: a – checking: $500, savings:$1,000; b – checking: $750, savings: $325.• Have the ATM machine ask the user their name.• Ask the user if they want to withdraw from their checking or their savingsaccount.• Use a switch statement to process different types of accounts.• Create software that will provide an ATM user with theproper change for any dollar amount up to $200.• Example: Run the code for $19, $55, and $200. Is the amount > $100, then provide a $100 bill & subtract $100• Is the amount >= $100, then provide a $100 bill & subtract $100• Is the amount > $20, then provide a $20 bill & subtract $20 [repeat 4times]• Is the amount > $10, then provide a $10 bill and subtract $10• Is the amount > $5, then provide a $5 bill and subtract $5• Provide the remaining amount in single $1 bills so the output should be like shown in…
Imagine we are using a two-dimensional array as the basis for creating the game battle- ship. In the game of battleship a ‘~’ character entry in the array represents ocean (i.e., not a ship), a ‘#’ character represents a place in the ocean where part of a ship is present, and a ‘H’ character represents a place in the ocean where part of a ship is present and has been hit by a torpedo. Thus, a ship with all ‘H’ characters means the ship has been sunk. Declare a two-dimensional char array that is 25 by 25 that represents the entire ocean and an If statement that prints “HIT” if a torpedo hits a ship given the coordinates X and Y. Write a C++ program that will read in a file representing a game board with 25 lines where each line has 25 characters corresponding to the description above. An example file might look like: Question: Once I run no chart shows and "Can not open file." Please help!
Java programming help please. Main and other class of code is below. Thank you so so much. i have to Write a program that does the following: You have an array of integers with positive and negative values. using one ourArray object (will post code of "ourArrary" below) , and in two loops maximum, How can you reorganize the content of the array so that all negative numbers are on one side and the positive numbers are on the other side. [-3, 2, -4, 5, -6, -8,-9, 7, 13] The output should be [-3, -4, -6, -8, -9, 2, 5, 7, 13] Our array code: public class ourArray<T> implements iQueue{ private T[] Ar; private int size = 0; private int increment = 100; //default constructor @SuppressWarnings("unchecked") public ourArray () { Ar = (T[]) new Object[100]; size = 0; } //constructor that accepts the size @SuppressWarnings("unchecked") public ourArray (int n) { Ar = (T[]) new Object[n]; size = 0; } //constructor that specifies the initial capacity and the increment…

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