java - 部分代码未运行

Question

我的部分 java 代码未运行。我对 java 相当陌生，并且一直在研究一些新的环境变化。我的类(class)被告知要制作一个 Windchill 温度计算器。我的主要问题是我的代码运行到 for (ws = wsp; ws <= c; ws += 0.5) 然后停止。

import java.util.*;
class Assign1
{
   public static void main(String args[])
{
  Menu user = new Menu();
  Menu.mainmenu();
  user.acceptSelection();
}
}
class Menu
{
  public static void mainmenu()
{
  System.out.println("Temperature Analysis MENU");
  System.out.println("1.W)ind Chill Temperature");
  System.out.println("0.E)xit");
  System.out.println("Enter Selection:");
}  
public void acceptSelection()
{
  Scanner stdin = new Scanner(System.in);
  String selection = stdin.nextLine();
  char choice = selection.charAt(0);

  switch(choice)
  {
     case 'W':
     case 'w':
     case '1':
              processing.process(); break;
     case 'E':
     case 'e':
     case '0':
              System.out.println("E"); break;
  }  
}
}
class processing
{
 public static void process()
{
  Scanner stdin = new Scanner(System.in);
  System.out.println("\n\n\n\n\n\n\n");
  System.out.print("Please enter START air temp in celsius (decimal) MUST be BELOW 9: ");
  double sa = stdin.nextDouble();
  System.out.print("Please enter END air temp in celsius (decimal) MUST be BELOW 9: ");
  double ea = stdin.nextDouble();
  System.out.print("Please enter wind speed (decimal) FROM 8km/h to: ");
  double w = stdin.nextDouble();
  System.out.println("\n==================================================================\n");
  calculation(sa, ea, w);

}
public static void calculation(double a, double b, double c)
{
  double wsp = 8.0;
  double airTemp;
  double ws;
  int size = 150;
  double[] wChill = new double[size];
  int count = 0;
     System.out.print("    " + a);
     while(a <= b)
     {
        System.out.print("    " + a);
        a +=5;
        count++;
     }
     System.out.print("    " + b);
  int count2 = 0;
     while(wsp <= c)
     {
        count2++;
        wsp += 0.5;
     }   
  double[][] chart = new double[count2][count];   
  int i = 0, j = 0, k = 0;

这是它停止工作的地方。我无法让它打印我的循环。任何解决我的问题的帮助以及我正在尝试改进的代码注释都将不胜感激。如果有帮助的话我正在使用 JGrasp。

       for (ws = wsp; ws <= c; ws += 0.5)
     {
     System.out.println(ws + "   ");
     for (airTemp = a; airTemp <= b; airTemp += 5.0)
     {
        if ((ws + 0.5) > c)
       {
        System.out.printf( "%2d    %2d", c , chart[k][i]);
       }
       else
       {
        wChill[i] = (13.12 + (0.6215*airTemp)+(-11.37*Math.pow(ws, 0.16))+(0.3965*airTemp*Math.pow(ws, 0.16)));
        chart[k][i] = wChill[i];
        System.out.print(chart[k][i] + "   ");
       }
       i++;
     }
     k++;
  }


}


}

Answer 1

根据您的代码，您有一个 while 循环

while(wsp <= c) {...}

然后你就有了一个for循环

for (ws = wsp; ws <= c; ws += 0.5)

如您所见，ws 被分配了 wsp 的值，而该值已经超过了 c

的值>