Important Java Interview Question

The given code accept a given value of double type and determine the square root of that number. Moreover, it also find the inverse of the given number. Both results will get store into the list.

import java.util.*;

public class Solver {
public Solver() {

List<Double> list=solveAll(25);
for(int i=0;i<list.size();i++){
System.out.println(list.get(i));
}
} 

public  List<Double> solveAll(double x) { 
    List<Double> result = new ArrayList<Double>(); 

    result.add(new Double(Math.sqrt(x)));
    double inverse=(double)1/x;
    result.add(new Double(inverse));

    return result; 
}
public static void main(String[]args){
    new Solver();
}

}