Question

Write a program in java that generates a two-column table showing Fahrenheit temperatures from -40F to 120F and their equivalent Celsius temperatures. Each line in the table should be 5 degrees F more than the previous one. Both the Fahrenheit and Celsius temperatures should be accurate to 2 decimal place.

Answer 1

Here is the required code:-

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

public class FahrenheitToCelsius {
  
private static DecimalFormat df = new DecimalFormat("0.00");
  
public static void main(String args[])
{
System.out.println("Fahrenheit Celsius\n");
  
for(double f=-40f; f<=120; f+=5)
{
double c = ((f - 32)*5)/9;
  
System.out.println(df.format(f) + " " + df.format(c));
}
  
}
}

This code produces the following output:-

Fahrenheit -40.00 -35.00 -30.00 -25.00 -20.00 -15.00 -10.00 -5.00 0.00 5.00 10.00 15.00 20.00 25.00 30.00 Celsius -40.00 -37.22 -34.44 -31.67 -28.89 -26.11 -23.33 -20.56 -17.78 -15.00 -12.22 -9.44 -6.67 -3.89 -1.11 1.67 4.44 7.22 10.00 12.78 15.56 18.33 21.11 40.00 23.89 50.00 55.00 60.00 65.00 70.00 75.00 80.00 85.00 90.00 95.00 100.00 105.00 110.00 115.00 120.00 26.67 29.44 32.22 35.00 37.78 40.56 43.33 46.11 48.89