java 度分秒转换 java摄氏度转换

//将键盘输入的华氏温度转为摄氏温度
//摄氏温度(C)与华氏温度(F)的换算式是：C = 5×(F- 32)/9，F = 9×C /5+32
//摄氏温度 Celsius temperature  华氏温度 Fahrenheit

import java.util.Scanner;

public class Temperature {
    public double Celsius_temperature(float F){
        float C;
        C = 5*(F-32)/9;
        return C;
    }
//   public double Fahrenheit(float C){
//        float F;
//        F = 9*C/5+32;
//        return F;
//    }
    public static void main(String args[]){
        Scanner s=new Scanner(System.in);
        System.out.println("请输入华氏温度：");
        float F = s.nextFloat();
        Temperature tm = new Temperature();
        if(F>=32&&F<=212)
            System.out.println(F+"℉ = "+tm.Celsius_temperature(F)+"℃");
        else
            System.out.println("输入的华氏温度错误，无法转换为摄氏温度！");
    }
}