java实现摄氏度和华氏度相互转换

import java.util.Scanner;
public class Convert {
  public static void main(String[] args) {
    /*
     * 华氏度转摄氏度
     * ℃ = (οF - 32) / 1.8
     * 摄氏度转华氏度
     * °F = (9/5)*°C + 32
     * */
    double fahrenheit, degree;
    //华氏度转摄氏度
    System.out.print("输入华氏度：");
    Scanner doublefahrenheit = new Scanner(System.in);
    fahrenheit = doublefahrenheit.nextDouble();
    degree = (fahrenheit - 32)*5/9;
    //输出结果保留两位
    System.out.printf("对应的摄氏度是：%.2f℃\n", degree);
    //摄氏度转华氏度
    System.out.print("输入摄氏度：");
    Scanner doubledegree = new Scanner(System.in);
    degree = doubledegree.nextDouble();
    fahrenheit = (9/5.0) * degree + 32;
    //输出结果保留两位
    System.out.printf("对应的华氏度是：%.2f℉\n", fahrenheit);
    //释放内存
    doublefahrenheit.close();
    doubledegree.close();
  }
}