公式说明

*华氏度转摄氏度
℃ = (οF - 32) / 1.8
摄氏度转华氏度
°F = (9/5)*°C + 32

代码实践

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();}}

测试结果查看