Write the missing methods in the following class accending to the comments: public class Square t private double side, public Square (double x) 1 public double area) 1 return sideside; public double perimeter())) t return 4 side; 1 Copy constructor //Equals method that returns true if a Square object passed as a parameter has the same side as the calling object // toString method returns a string such as "Side: value" where value is the number stored in side