ArrayList content:_ Your explanation (where this output came from): nyList.add(0, "a"); ArrayList content: Your explanation (where this output came from): nyList.add("t"); ArrayList content: Your explanation (where this output came from): myList.add(2,"w"); ArrayList content: Your explanation (where this output came from): myList.set(0,"b"); ArrayList content:

Explain term encapsulation.

For items 1–3, use the IN300_Dataset1.csv file. Write a Python program that reads the CSV file into a Panda dataframe. Using that dataframe, print the row, source IP, and destination IP as a table. Write a Java program that reads the CSV file into an ArrayList. Convert the ArrayList to a string array and print the row, source IP, and destination IP on the same line using a loop. Write an R program that reads the CVS file using the read.csv data type. Print the row, source IP and destination IP of each line.

The code given below represents a saveTransaction() method which is used to save data to a database from the Java program. Given the classes in the image as well as an image of the screen which will call the function, modify the given code so that it loops through the items again, this time as it loops through you are to insert the data into the salesdetails table, note that the SalesNumber from the AUTO-INCREMENT field from above is to be inserted here with each record being placed into the salesdetails table. Finally, as you loop through the items the product table must be update because as products are sold the onhand field in the products table must be updated. When multiple tables are to be updated with related data, you should wrap it into a DMBS transaction. The schema for the database is also depicted. public class PosDAO { private Connection connection; public PosDAO(Connection connection) { this.connection = connection; } public void...

def upgrade_stations(threshold: int, num_bikes: int, stations: List["Station"]) -> int: """Modify each station in stations that has a capacity that is less than threshold by adding num_bikes to the capacity and bikes available counts. Modify each station at most once. Return the total number of bikes that were added to the bike share network. Precondition: num_bikes >= 0 >>> handout_copy = [HANDOUT_STATIONS[0][:], HANDOUT_STATIONS[1][:]] >>> upgrade_stations(25, 5, handout_copy) 5 >>> handout_copy[0] == HANDOUT_STATIONS[0] True >>> handout_copy[1] == [7001, 'Lower Jarvis St SMART / The Esplanade', \ 43.647992, -79.370907, 20, 10, 10] True """

Rules: Corner cases. By convention, the row and column indices are integers between 0 and n − 1, where (0, 0) is the upper-left site. Throw an IllegalArgumentException if any argument to open(), isOpen(), or isFull() is outside its prescribed range. Throw an IllegalArgumentException in the constructor if n ≤ 0. Unit testing. Your main() method must call each public constructor and method directly and help verify that they work as prescribed (e.g., by printing results to standard output). Performance requirements. The constructor must take Θ(n^2) time; all instance methods must take Θ(1)Θ(1) time plus Θ(1)Θ(1) calls to union() and find().

Write Xojo Code to create the array Planets and Assign values. Planets: Venus Earth Mars Jupiter Saturn Uranus Neptune

Ex. 02 : ArrayList<E> About Instructions : Create the following Array List Data Structure in your utility package and use "for loops" for your repetitive tasks. Where to find starter code in my-api package.class : utility.ArrayList package.class : testing.ArrayListTest What has to be added to my-api package.interface : utility.List Where to find unit test in my-api package.class : tests.ArrayListJUnitTest Task Check List Place a SCREENSHOT of your results (pass/fail) JUNIT Tests for your Array List in your report. ONLY "for" loops should be used within the data structure class. Names of identifiers MUST match the names listed in the description below. Deductions otherwise. Description This Array List Data Structure operates like a dynamic array , which can grow or reduce its size. Think through the class construction so that it meets the following specifications: data fields: The fields to declare have private accessibility. size : stores the number of occupied locations...

can you explain the code with comments import randomrandom.seed = 1class array: def __init__(self, valuelist): self.atos = valuelist.copy() # this variable is the array that holds the data def additem(self, value): # adds a item to the array self.atos.append(value) def printarray(self): # prints the self.atos print(self.atos) def __contains__(self, key): # To test the binary search change the "__linearsearch" to "__binsearch" return self.__binsearch(key) def __linearsearch(self, key): # Implements the linear search to find an item in the array for item in self.atos: if item == key: return True return False def __binsearch(self, key): temp = sorted(self.atos) # Implements the binary search to find an item in the array temp. This implements an iterative bin search algorithm. low = 0 high = len(temp) - 1 while low <= high:...

1) What is one main disadvantage of an ArrayList? 2) Write a Java statement to create an ArrayList called list to hold 25 integers. 3) What is the type of the ArrayList defined in question number 2? 4) Write a for loop to initialize the objects in the ArrayList created in question number 2 above to -1.

This class will allow a user to enter 5 scores into an array. It will then rearrange the datain descending order and calculate the mean for the data set.Attributes: data[]— the array which will contain the scores mean — the arithmetic average of the scoresMethods: Average — the constructor. It will allocate memory for the array. Use a forloop to repeatedly display a prompt for the user which should indicate that userCopyright © 2019 Pearson Education, Inc., Hoboken NJshould enter score number 1, score number 2, etc. Note: The computer startscounting with 0, but people start counting with 1, and your prompt should accountfor this. For example, when the user enters score number 1, it will be stored inindexed variable 0. The constructor will then call the selectionSort and thecalculateMean methods. calculateMean — this is a method that uses a for loop to access each scorein the array and add it to a running total. The total divided by the number ofscores (use the length of the array),...

Create a for-each loop that outputs all elements in the role collection of Student objects. What is necessary for that loop to function?

Each object that is created from its "template" is called a(n) ?