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madguy
temperature converting
2 Answer(s)      2 years and 4 months ago
Posted in : Java Beginners


Write a program that makes use of a class called Degrees that implements the following doublemethods as per the UML class

    Method celsius returns the Celsius equivalent of a given Fahrenheit temperature
    Method fahrenheit returns the Fahrenheit equivalent of a given Celsius temperature
    Method displayTable should use the above methods to prints charts showing:


    The Fahrenheit equivalents of all Celsius temperatures from 0 to 100 degrees in 4 degree intervals
    The Celsius equivalents of all Fahrenheit temperatures from 32 to 212 degrees in 10 degree intervals
    Both columns in each chart should be printed to one decimal place
    Print the charts in a neat tabular format that minimizes the number of lines of output while remaining readable

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June 19, 2012 at 1:20 PM


Here is an example of Temperature Conversion where we have converted Celcius to Fahrenheit and vice versa. For this, we have create three functions celcius(), fahrenheit() and display table which display the conveted values in the form of chart.

import java.util.*;
import java.text.*;

class Degrees 
{
    public static double fahrenheit(int temp) {
         return (1.8 * temp) + 32;
    }

    public static double celsius(int temp) {
         return (temp - 32) / 1.8;
    }
    public static void displayTable(){
        DecimalFormat df=new DecimalFormat("##.#");
        System.out.println("Celcius (C)   Fahrenheit (F)");
        for(int i=0;i<=100;i+=4){
            System.out.println(i+"\t    |     "+df.format(fahrenheit(i)));
        }
        System.out.println("Fahrenheit (F)   Celcius (C) ");
        for(int i=32;i<=212;i+=10){
            System.out.println(i+"\t    |     "+df.format(celsius(i)));
        }
    }

    public static void main(String[] args) 
    {
        displayTable();
    }
}


July 1, 2012 at 4:59 AM


thanks :)



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