Which package is needed to find the square root . java.lang or java.math

Answer 1

If you are in a hurry – why not google "java square root"?

Anyways, this seems to work:
Math.sqrt(x)

(x is double)

Answer 2

Test or interview?

Answer 3

Firoz Khan
Java.long is default package , no need to import.
You can use directly sort() method as it is static method in Math class like Math.sqrt(Number); it returns squire root of Number. No need to import any package explicitly....

Answer 4

One could do a quick test on sololearn playground and see that
java.lang.Math.sqrt() and Math.sqrt() works and that java math.sqrt() throws an error.

Without knowing much Java I would infer that Math.sqrt() is built-in part of java.lang so we usually don't need to write this part explicitly

Answer 5

Please give me answer quickly

Answer 6

I want to know java.lang or java.math