C语言程序设计教程（第三版）课后习题4.9 （Java代码）

解题思路:

注意事项:

参考代码:

package com.cx;

import java.text.DecimalFormat;

import java.util.Scanner;

    public class Exchange {

        public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        float a = sc.nextFloat();

        ExChange(a);

    }

    public static void ExChange(float a) {

        float b = 5 * (a - 32) / 9;

        DecimalFormat fnum = new DecimalFormat("##0.00");

        String dd = fnum.format(b);

        System.out.println(dd);

    }

}