相关疑难解决方法(0)

如何强制Java在除以0.0或从负双提取根时抛出算术异常？代码如下:

   double a = 1; // or a = 0 to test division by 0
   double b = 2;
   double c = 100;

   double d = b*b - 4*a*c;
   double x1 = (-b - Math.sqrt(d)) / 2 / a;
   double x2 = (-b + Math.sqrt(d)) / 2 / a;