Question

这是我的代码

        import java.util.Scanner;

        public class assignment4 {

         public static void main(String[] args) {

        Scanner input = new Scanner(System.in);
        System.out.println("Enter a");
        double aa = input.nextDouble();
        System.out.println("Enter b");
        double bb = input.nextDouble();
        System.out.println("Enter c");
        double cc = input.nextDouble();
        double discriminant = (bb * bb - 4 * aa * cc);
        discriminant = Math.power(discriminant,0.5);

        }
        }

我在这部分收到错误。

        discriminant = Math.power(discriminant,0.5);

我可能做错了什么？这是错误btw

assignment4.java:15: error: cannot find symbol
discriminant = java.lang.Math.power(discriminant,0.5);
                             ^
  symbol:   method power(double,double)
  location: class Math
1 error

Answer 1

您需要使用的方法是Math.pow(discriminant, 0.5)

（初学者）为什么我得到这个找不到符号错误？

1 个答案: