Question

I need to get the power value of a given number by user (as a command line argument)

This is my code and it has comes up with a compilation error.

Can anyone please help me ?

class SquareRoot{

      public static void main(String args []){

          double power = Math.pow(args[0]);         
          System.out.println("Your squared value is " + power);

      }
}

Answer 1

This is because Math.pow needs two arguments. Something like:

double power = Math.pow(Double.parseDouble(args[0]),2.0);

See the javadoc.