Temperature.java

import java.util.Scanner;
import java.text.DecimalFormat;

public class Temperature
{
	public static void main (String [] args)
	{
		Scanner keyboard = new Scanner(System.in);
		double celsius;
		System.out.print("Enter a degree in Celsius: ");
		celsius = keyboard.nextDouble();
		double fahrenheit = 9.0/5*celsius + 32;
		
		// you can use this
		// 45.0C    -> 113.000F
		// 65.4578C -> 149.842F
		DecimalFormat df = new DecimalFormat("#.000");
		System.out.print(celsius + " degree Celsius is " + df.format(fahrenheit) + " degrees Fahrenheit\n");
		
		// or this
		// 45.0C    -> 113.0F
		// 65.4578C -> 149.842F
		System.out.print(celsius + " degree Celsius is " + Math.floor(fahrenheit*1000 + 0.5)/1000 + " degrees Fahrenheit ");
	}
}