Answered: /hich of the following are valid Java…

/hich of the following are valid Java identifiers? A. $myvariable B. OReilly_&_Associates C. _score D. my E. !digit F._9Levels G. interface H. 9pins I. main J. This_is_an_insanely_long_varia variable

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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If a team is unable to complete all the points of work allocated for an iteration, the team should use the number of points that were completed as basis for the work for the next iteration. True/False
please quickly thanks ! use java
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First code is top, second code is on bottom. This is for Java. What makes these two codes different? (a) If x = 3, what will the first (code) print out? (b) If x = 3, what will the second (code) print out? (c)If x = 1, what will the first (code) print out? (d) If x = 1, what will the second (code) print out?
A Java class can contain Variables Methods, Constructors Inner Classes (A class inside another class) O All the above
class Calculator: # Type your code here. if __name__ == "__main__": calc = Calculator(); num1 = float(input()) num2 = float(input()) # 1. The initial value print('{:.1f}'.format(calc.get_value())) # 2. The The value after adding num1 calc.add(num1) print('{:.1f}'.format(calc.get_value())) # 3. The value after multiplying by 3 calc.multiply(3) print('{:.1f}'.format(calc.get_value())) # 4. The value after subtracting num2 calc.subtract(num2) print('{:.1f}'.format(calc.get_value())) # 5. The value after dividing by 2 calc.divide(2) print('{:.1f}'.format(calc.get_value())) # 6. The value after calling the clear() method calc.clear() print('{:.1f}'.format(calc.get_value()))
Flight assignment runs but there is no imput values for the user to interact when running the program. Kindly fix this issue.import java.util.*; class Flight { String airlineCode; int flightNumber; char type; // D for domestic, I for international String departureAirportCode; String departureGate; char departureDay; int departureTime; String arrivalAirportCode; String arrivalGate; char arrivalDay; int arrivalTime; char status; // S for scheduled, A for arrived, D for departed public Flight(String airlineCode, int flightNumber, char type, String departureAirportCode, String departureGate, char departureDay, int departureTime, String arrivalAirportCode, String arrivalGate, char arrivalDay, int arrivalTime) { this.airlineCode = airlineCode; this.flightNumber = flightNumber; this.type = type; this.departureAirportCode = departureAirportCode; this.departureGate = departureGate;…
java
For beginning Java, need help with this: " Purpose: Define class using OO approach Understand how to create and manipulate list of objects Design and create a well-structure program using basic programming constructs and classes Description: Write a program to help you to manage courses you are taking this semester. Your program provides the following options: List all courses Add a course Search word: show all the courses that has the word in the course title (ask the user for the word) List >= input-unit: show all the courses that has unit >= input-unit (ask the user for input) Exit Explanation of options: The program prints your course list. Initially, it should say “Your list is empty” The program asks the user input for a course including: course ID, number of units and title. The program asks the user to input the search word. Then, display all courses that has that word in the title. The search must be case-insensitive. For example, “computer” and…
Understanding ifStatements Summary In this lab, you complete a prewritten Java program for a carpenter who creates personalized house signs. The program is supposed to compute the price of any sign a customer orders, based on the following facts: The charge for all signs is a minimum of $35.00. The first five letters or numbers are included in the minimum charge; there is a $4 charge for each additional character. If the sign is made of oak, add $20.00. No charge is added for pine. Black or white characters are included in the minimum charge; there is an additional $15 charge for gold-leaf lettering. Instructions 1. Ensure the file named HouseSign.java is open. 2. You need to declare variables for the following, and initialize them where specified: A variable for the cost of the sign initialized to 0.00 (charge). A variable for the number of characters initialized to 8 (numChars). A variable for the color of the characters initialized to "gold" (color). A variable for the…
Please answer question. This is pertaining to Java programming language 2-17
In Java: String Word1="The Kean", Word2="University"; String print2=Word1.substring(4,8);