Answered: Given a certain temperature in…

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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Given a certain temperature in Fahrenheit and a maximum wind velocity (speed) in Miles Per Hour, calculate and display a series of wind chill factors from a wind velocity of 1 MPH to the maximum wind velocity in a table. The user is allowed to specify a maximum wind velocity of up to 50 MPH.Here are the programming instructions for this project:

•You must use coding techniques from only Chapter 1 through Section 5.1 in our textbook. You may not use any other coding techniques from any other sources.

• Create a project and class in BlueJ named Project2

• In main(), do the following:

-Prompt the user to enter the current temperature and use a Scanner object to store it in a double variable.oCall a method named getVelocity that returns an integer and has a Scanner parameter. This method must use a either a while loop or a do-while loop to prompt the user to enter the maximum wind velocity (speed) and return it. A valid value for the maximum wind velocity is between 2 and 50 (inclusive). As long as the value is not valid, display a message saying the value is invalid and prompt the user to enter the value again.The condition for this loop must contain a Boolean expression with relational operators (one or more of these: <, >, <=, >=, ==, !=, &&, !!).

-Display the first line of the table with column headers for the current temperature, the wind velocity (speed), the calculated wind chill factor, and what the temperature actually feels like. You will need to use the \t escape sequence to put spacing between the columns.

-Within a for loop, call a method named wcfactor that returns a double and has a double parameter and an integer parameter. The method will return a value for the wind chill factor, based on the following formula (T is the temperature, V is the wind velocity):

W= 35. 74 + 0.6215∗??−35. 75∗??0.16+ 0.4275∗??∗??0.16

-Display each line of the table using a System.out.printfstatement. The data should be in this order: current temp, wind speed, calculated wind chill factor, and what the temperature actually feels like. Each line of data must do the following:

 The current temp must be converted to an integer using casting so that no decimal places are displayed.

 The calculated wind chill factor must be rounded to 2 decimal places.

 The Math.round() method must be used to display what the temperature actually feels like with no decimal places.

 You must use field widths for each of the four data items to make each data item appear near the middle of each column. You are not allowed to use any escape characters for any of the four data items. Refer to the sample output document in the Files area of Canvas for an example

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