温度转换不起作用，所有结果都正确 1 个“槽”

Question

public class TempTabl {
    
  public static void main (String[] args) {
      double a = 0;
double b = 0;
double c = 0;
double z = 0;
System.out.printf("  Temperature    |       Temperature%n");
System.out.printf("    (degrees)    |        (degrees) %n");
System.out.printf(" F           C   |      C           F%n");

 z = 0;
while (a <= 450) {
    b = fahrenheit(a,b);
    a = -40 + (5 * z);
System.out.printf(" %-10s  %4f| %-10s  %4f", a, b, a, c);
System.out.println("");

z++;
}
   }
   public static double fahrenheit(double a,double b)
   {
     b = ((a-32)*5)/9;
     return b;
  
    }
     public static double celsius(double z,double c)
   {
     c = -40 + ( 9 * z);
     return c;
  
    }
   
}

我得到了什么：

    Temperature    |      
     (degrees)     |        

F C |
-40.0 -17.777778| -35.0 -40.000000| -30.0 -37.222222|

我期望得到什么：

温度 |
（度）|
F C |
−40.000 −40.000 |
−35.000 −37.222 | −30.000 −34.444 |

Answer 1

解决办法是： 在 while 循环内 当您调用华氏度时，参数“a”为零，因此您应该在调用华氏度函数之前定义“a” 这将修复它，您将得到预期的输出