1. True or False * 2 points BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); will create the same result using the two statements below. InputStreamReader r = new InputStreamReader(System.in); BufferedReader br= new BufferedReader(r); True O False 2. True or False " 2 points In the statement BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); Integer.parselnt(br.readLine()); object br reads an integer input. True O False 3. True or False " 2 points In the statement BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); br.readLine(); object br reads double input. True False

1. True or False * 2 points BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); will create the same result using the two statements below. InputStreamReader r = new InputStreamReader(System.in); BufferedReader br= new BufferedReader(r); True O False 2. True or False " 2 points In the statement BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); Integer.parselnt(br.readLine()); object br reads an integer input. True O False 3. True or False " 2 points In the statement BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); br.readLine(); object br reads double input. True False

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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Inheritance and Polymorphism This assignment starts with the Account class from Labs 4 and 5. Our new and improved bank has two kinds of accounts, savings, and checking. In addition to an ID and a balance, savings accounts have an annual interest rate and a minimum balance. Checking accounts have a minimum balance and a monthly fee. Withdrawals and deposits can be made to both kinds of accounts. At the end of each month, savings accounts pay interest, but only if the account's balance is above the minimum. Also at the end of each month, a fee is deducted from each checking account, but the fee is waived if the account's balance is over the minimum. Tasks 1. Create a complete UML diagram which shows the relationships between the three classes, Account, Savings, and Checking and all of the fields and methods in each. The only modifications required to the Account class is the addition of two abstract methods called closeMonth and accountString. 2. The closeMonth function performs the…
In the following pseudocode of creating a trigger, the first UPDATE is the ____ of the trigger, and the second UPDATE is the ____ of the trigger. CREATE TRIGGER MyTrigger AFTER UPDATE OF attr ON MyTable ... WHEN ... UPDATE MyTable .... Group of answer choices Action; action Condition; action Event; action Event; condition
Create a module for username validation. This module must meet the following acceptance criteria: • The username must contain a minimum of 6 characters and a maximum of 12. • The username must be alphanumeric . • Username with less than 6 characters, returns the message "Username must contain at least 6 characters". • Username with more than 12 characters, returns the message "Username cannot contain more than 12 characters". • Username with non-alphanumeric characters, returns the message "Username can contain only letters and numbers". • Valid username returns True.
3. Which among the following shows a valid use of the Direction enumeration as a parameter to the moveCharacter function? Select al that apply. enum Direction { case north, south, west, east}func moveCharacter(x: Int, y: Int, facing: Direction) {// code here} moveCharacter(x: 0, y: 0, facing: .southwest) moveCharacter(x: 0, y: 0, facing: Direction.north) moveCharacter(x: 0, y: 0, facing: .south) moveCharacter(x: 0, y: 0, facing: Direction.northeast)
In order for a player to navigate your game, you will need to develop a function or functions using Python script. Your function or functions should do the following: Show the player the different commands they can enter (such as “go North”, “go West”, and “get [item Name]”). Show the player’s status by identifying the room they are currently in, showing a list of their inventory of items, and displaying the item in their current room. You could make these separate functions or part of a single function, depending on how you prefer to organize your code. Sample function showing the goal of the game and move commands def show_instructions(): #print a main menu and the commands print("Dragon Text Adventure Game") print("Collect 6 items to win the game, or be eaten by the dragon.") print("Move commands: go South, go North, go East, go West") print("Add to Inventory: get 'item name'") The blue image is an example of how the code should look. The map image is the map your code should…
When the GetExpenses function completes its processing, it should send the value stored in the decTotal variable to the statement that invoked the function. Which of the following statements accomplishes this task?a. Return (ByVal decTotal)b. Send ByVal(decTotal)c. SendBack decTotald. Return decTotal
File redirection allows you to redirect standard input (keyboard) and instead read from a file specified at the command prompt. It requires the use of the < operator (e.g. java MyProgram < input_file.txt) True or False
Develop an instantiable class for an IT Support Application in java. Display a menu for selecting the following: 1.Enter your request 2. Display last request 3. Highest priority request 4. Lowest priority request 5. Average Request priority 6.Exit Application Be able to select these options and input using scanner class only. Arrays not allowed.
Question: The overall grade in a course is determined from the grades of 3 midterms and a final exam, using the following scheme: Midterms: Midterms are graded on a scale from 0 to 20. The total of the 3 quizzes constitutes 50% of the course grade. Final exam: The final exams is graded on a scale from 0 to 100. The final exam constitutes 50% of the course grade. Write a computer program in a script file that determines the course grade for a student. The program first asks the user to enter the 3 midterms grades (In a vector) and the grade of the final. Then the program calculates a numerical course grade (a number between O and 100). The course grade is rounded to one decimal points. Sample Output: Please enter Midterm 1 grade : 30 Input should be between 0 and 20, Please enter Midterm 1 grade : 20 Please enter Midterm 2 grade : 15 Please enter Midterm 3 grade : 17.8 Please enter final exam grade: 80 The course grade is 66.4 Click Below Matlab Link: https://matlab.mathworks.com For…
public getFuelLevel():double retrieves fuel level in gallons Precondition: fuel level is initialized Postcondition: no change in state Return: fuel level in gallons with decimal valuespublic getFuelTankSize():double retrieves fuel level in gallons Precondition: fuel level is initialized Postcondition: no change is state Return: fuel level in gallons with decimal valuespublic setUpTrip(double, double): void Car's state is set to hold the speed of travel and distance to travel at that speed Precondition: none Postcondition: Car's state holds information on distance to travel and speed to travel Parameters: Average Speed to be driven, Distance to driveDevelop and use an algorithm that calculates the amount of fuel used and the actual distance driven in the drive() method. The algorithm must use a formula or multiple formulas ( as a piecewise function) that gives proportionately poorer mileage when the Car is driven faster or slower than its optimal speed. When a new Car object…
You have more flexibility to implement your own function names and logic in these programs. The data files you need for this assignment can obtained from:Right-click and "Save Link As..." HUGO_genes.txt (Links to an external site.) chr21_genes.txt (Links to an external site.) Create an output directory inside your assignment4 directory called "OUTPUT" for result files, so that they will not mix with your programs. Output from your programs will be here! Your program must implement command line options for the infiles it must open, but for testing purposes it should run by default, so if no command line option is passed at the command line, the program will still run. This will help in the grading of your program. Create a Python Module called called my_io.py - You can use the same code from assignment 3's solution. Put this my_io.py Module in a subdirectory named assignment4 inside your assignment4 top-level directory (see the tree below, and see Lecture 7 on how to implement a…