*4.23 (Financial application: payroll) Write a program that reads the following information and prints a payroll statement: Employee's name (e.g., Smith) Number of hours worked in a week (e.g., 10) Hourly pay rate (e.g., 9.75) Federal tax withholding rate (e.g., 20%) State tax withholding rate (e.g., 9%)

*4.23 (Financial application: payroll) Write a program that reads the following information and prints a payroll statement: Employee's name (e.g., Smith) Number of hours worked in a week (e.g., 10) Hourly pay rate (e.g., 9.75) Federal tax withholding rate (e.g., 20%) State tax withholding rate (e.g., 9%)

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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3.27 (World Population Growth) World population has grown considerably over the centuries. Continued growth could eventually challenge the limits of breathable air, drinkable water, arable land and other limited resources. There’s evidence that growth has been slowing in recent years and that world population could peak some time this century, then start to decline. For this exercise, research world population growth issues. This is a controversial topic, so be sure to investigate various viewpoints. Get estimates for the current world population and its growth rate. Write a script that calculates world population growth each year for the next 100 years, using the simplifying assumption that the current growth rate will stay constant . Print the results in a table. The first column should display the year from 1 to 100. The second column should display the anticipated world population at the end of that year. The third column should display the numerical increase in the world…
3.27 (World Population Growth) World population has grown considerably over the centuries. Continued growth could eventually challenge the limits of breathable air, drinkable water, arable land and other limited resources. There’s evidence that growth has been slowing in recent years and that world population could peak some time this century, then start to decline. For this exercise, research world population growth issues. This is a controversial topic, so be sure to investigate various viewpoints. Get estimates for the current world population and its growth rate. Write a script that calculates world population growth each year for the next 100 years, using the simplifying assumption that the current growth rate will stay constant . Print the results in a table. The first column should display the year from 1 to 100. The second column should display the anticipated world population at the end of that year. The third column should display the numerical increase in the world…
4.31 LAB: Months until payoff (JAVA) Write a program in java that reads a loan amount, payment amount, and interest rate as inputs and outputs the number of payments required until the loan is paid. Interest is added to current balance before a payment is applied. Ex: If current balance is $100.00 and the interest rate is 0.02, the new balance is $102.00 before a payment is applied. All values are doubles. import java.util.Scanner; public class LabProgram { public static void main(String[] args) { Scanner scnr = new Scanner(System.in); /* Type your code here. */ }}
Computer Science use python code for this question
Python
5.28 LAB: Toll calculation (EO) Toll roads have different fees based on the time of day and on weekends. Write a method calcToll() that has three parameters: the current hour of time (int), whether the time is morning (boolean), and whether the day is a weekend (boolean). The method returns the correct toll fee (double), based on the chart below. Weekday Tolls Before 7:00 am ($1.15) 7:00 am to 9:59 am ($2.95) 10:00 am to 2:59 pm ($1.90) 3:00 pm to 7:59 pm ($3.95) Starting 8:00 pm ($1.40) Weekend Tolls Before 7:00 am ($1.05) 7:00 am to 7:59 pm ($2.15) Starting 8:00 pm ($1.10) Ex: The method calls below, with the given arguments, will return the following toll fees: calcToll(7, true, false) returns 2.95calcToll(1, false, false) returns 1.90calcToll(3, false, true) returns 2.15calcToll(5, true, true) returns 1.05 code: public class TollCalculation { public double calcToll(int hour, boolean isMorning, boolean isWeekend) { /* Type your code here. */ } public…
4.25 LAB*: Program: Grade calculator Program Specifications Write a program to calculate a course grade given points for homework, quizzes, midterm exam, and final exam. Grades are calculated differently for undergrads, grads and distance learners. Note: this program is designed for incremental development. Complete each step and submit for grading before starting the next step. Only a portion of tests pass after each step but confirm progress. Step 1 (2 pts). Read from input student status (string), homework points, quiz points, midterm exam score, and final exam score (double). Valid student status includes undergrad (UG), grad (G), and distance leaner (DL). Calculate each category average using maximum points for homework (800), quizzes (400), midterm exam (150), and final exam (200). Output an error message if student status is not one of the three options. Otherwise, output category averages as a percentage using cout << "Homework: " << homework << "%"…
issignment Portion - hand in your wo nce completed "4.2 (Geometry: gneat circle distance) The great circle distance is the distance between two points on the surface of a sphere. Let(x1,y1)and(x2,y2)be the geographical latitude and longitude of two points. The great circle distance between the two points can be computed using the following formula: \[ d=\operatorname{radius} \times \arccos \left(\sin \left(x_{1}\right) \times \sin \left(x_{2}\right)+\cos \left(x_{1}\right) \times \cos \left(x_{2}\right) \times \cos \left(y_{1}-y_{2}\right)\right) \] Write a program that prompts the user to enter the latitude and longitode of two points on the earth in degrees and displays its great circle distance. The average radius of the earth is6,371.01 km. Note you need to convert the degrees into radians using the Math, toRadi ans method since the Java trigonometric methods use radians. The latitude and longitude degrees in the formula are for north and west. Use negative to indicate south and…
8.18 (Regular Expression: Password Format Validator) Search online for secure password recommendations, then research existing regular expressions that validate secure passwords. Two examples of password requirements are: Passwords must contain at least five words, each separated by a hyphen, a space, a period, a comma or an underscore. Passwords must have a minimum of 8 characters and contain at least one each from uppercase characters, lowercase characters, digits and punctuation characters (such as characters in '!@#$%<^>&*?'). Write regular expressions for each of the two requirements above, then use them to test sample passwords.
4.35 (Sides of a Triangle) Write an application that reads three nonzero values entered by the user and determines and prints whether they could represent the sides of a triangle. This is the example used for format: Enter·three·sizes,·separated·by·spaces(decimals·values·are·acceptable):4.5·5.5·3.5↵ A·triangle·could·measure·4.50,·5.50,·by·3.50.↵
5.10 (Find numbers divisible by 5 and 6) Write a program that displays all the numbers from 100 to 1,000, ten per line, that are divisible by 5 and 6. Numbers are separated by exactly one space.