摄氏度和华氏度之间的额转换 Exercise06_08

/**
 * @author 冰樱梦
 * 时间：2018年下半年
 * 题目：摄氏度和华氏度之间的额转换
 *
 */
public class Exercise06_08 {
    public static void main(String[] args){
        System.out.printf("%-23s%-22s%-20s%-10s","摄氏度","华氏度","华氏度","摄氏度");
        System.out.println("
————————————————————————————————————————————————");
        for(double i=40,j=120;i>=31&&j>=30;i--,j-=10){
            System.out.printf("%-10.1f%-10.1f%-10.1f%.1f
",i,celsiusToFahrenheit(i),j,fahrenheitToCelsius(j));
        }
        
    }
    public static double celsiusToFahrenheit(double celsius){
        return (9.0/5)*celsius+32;
    }
    public static double fahrenheitToCelsius(double fahrenheit){
        return (5.0/9)*(fahrenheit-32);
    }
}