Give a reason why it is useful to use the java.util.Scanner class to read in a CSV file.  Briefly describe a disadvantage of a CSV file for data storage versus a JSON file. When you use the Jackson JSON parser to do databinding, what is a requirement for the Java class that is being mapped to?  What is a requirement for the names of the keys in the JSON file that is is the source for the databinding.

For the Assignment 5 (Part 2), Routes v.2 at the end of this module you will create a Route class that has a member a "bag" of Leg objects. The bag is to use a vector of pointers, but since all the objects in the bag are to be Leg s, it's okay to use Leg* instead of void* in the bag's declaration. You wrote its first constructor in a previous exercise. Now write a second one. (You may refer to the Assignment page to refer to the completed class declarations of Leg and Route classes). Assume that class Leg has data member C strings const char* const beginCity; and const char* const endCity; that are available to Route by a friend relationship. Write a constructor function for a Route class that takes exactly two parameters: a constant Route object reference to an already-existing Route , and a constant Leg object reference to be appended to the end of that Route to form the new Route . Here's the algorithm: Copy the first parameter's bag into the host object's bag. If the endCity of…

When you compile and run packaged software from an IDE, the execution process can be as easy as clicking a run icon, as the IDE will maintain the classpath for you and will also let you know if anything is out of sorts. When you try to compile and interpret the code yourself from the command line, you will need to know exactly how to path your files. Let us start from c:\Code directory for this assignment. Consider a java file who's .class will result in the com.CITC1318.course package as follows: package com.CITC1318.course; public class GreetingsClass { public static void main(String[] args) { System.out.println("$ Greetings, CITC1318!"); } } This exercise will have you compiling and running the application with new classes created in a separate package: 1. Compile the program: c:\Code>javac -d . GreetingsClass.java  2. Run the program to ensure it is error-free: c:\Code>java -cp . com.CITC1318.course.GreetingsClass 3. Create three classes named Chapter1, Chapter2, and Chapter3…

Is there a difference between the void and the NULL pointers? Your response should provide relevant instances to support it. Distinguish between the two in TABULAR format.

Implement a city database using a BST to store the database records. Each database record contains the name of the city (a string of arbitrary length) and the coordinates of the city expressed as integer x- and y-coordinates. The BST should be organized by city name. Your database should allow records to be inserted, deleted by name or coordinate, and searched by name or coordinate. Another operation that should be supported is to print all records within a given distance of a specified point.Collect running-time statistics for each operation. Which operations can be implemented reasonably efficiently (i.e., in O(log n) time in the average case) using a BST? Can the database system be made more efficient by using one or more additional BSTs to organize the records by location?

1. why is debugging with a storage dump the most ineffficient of the brute-force methods? A. It contains program actions between the time of the dump and the time of the error that can mask the clues needed to find the error.  B. It shows the program state at all times for error detection and for studying program dynamics.  C. it sets breakpoints that cause suspesion in the program so that the programmer can examine the current state of the program.  D. It requires a change of the program and such changes can mask the error, alter critical timing relationships, or introduce new errors.  2. What is a best practice for bug tracking?  A. A bug item note/entry is unnecessary for every failure found during testing.  B. Bug tracking is the responsibility of QA rather than development.  C. Bug tracking is required to manage analysis and resolution of issues found throughout the development process.  D. Bug tracking is only required during the UAT phase of testing in order to document user…

Answer the given question with a proper explanation and step-by-step solution.

Using the Black Box Testing Technique, what is the test-cases for the following: a. Equivalence class partition on Email fields (format: XXXXXXXX@XXXX.com). b. Equivalence class partition on Mobile Numbers (format: +(000)-000000000). c. Boundary Value Analysis for Age of any human beings. d. Boundary Value Analysis for Decimal Number, and Binary Number. ***************************************** The subject is software engineering

Nonscalar types, such as arrays, records (structures), and variant records (unions) also contain information. The rules for information flow classes for these data types are built on the scalar types. Consider the array a: array 1 .. 100 of int; First, look at information flows out of an element a[i] of the array. In this case, information flows from a[i] and from i, the latter by virtue of the index indicating which element of the array to use. Information flows into a[i] affect only the value in a[i], and so do not affect the information in i. Thus, for information flows from a[i], the class involved is lub{ a[i], i }; for information flows into a[i], the class involved is a[i]. Above is the infromation flow security mechanism for arrays similarly write one for structures/Records. Below is the small info on Structures. The structure consists of several fields, each of which acts like a variable. Say you have a structure with two integer fields, x and y. You want to assign the value…

This question was rejected because lack of a text file, which I do not see a way to upload. I saved the first part of the file as an image because that is all I can upload. If that doesn't suffice, please advise how to include a text file. In C++, I would like some help improving or making a better password lookup function for a Hash Table class/program I made,  The function:   it is supposed to lookup a user password using their ID and name which I read in from a text file. The one I have only works for the first 10 records, which I highlighted below in the program. string lookupPassword (string inUserID, string inUserName){ string thePassword; ... return thePassword; } Here is part of the program thus far: // Hash.cpp  #include <iostream>#include<string>#include<iomanip>#include<fstream>using namespace std;//node classclass nodeBST {private:    //user data    string userID;    string userName;    string userPW;    //BST left and right children    nodeBST*…