Please modify the code to answer the following three questions.

// Q1. Override the toString() method. Use String Builder to print "Point (x, y)" The x, y // value should be formatted to 3 decimal places

// Q2. Override the Equals() method.

// Q3. Override the hashCode() method.

This is the code:

package exercise;

import java.util.Objects;

/** * Represents a 2-dimensional point on a plane. * */ public final class Point implements Cloneable {

// constants (static final fields)

/** A default value for the x coordinate. */ public static final double DEFAULT_X = 0;

/** A default value for the y coordinate. */ public static final double DEFAULT_Y = 0;

/** A value to convert to degrees. */ public static final double HALF_CIRCLE = 180;

// instance fields

/** The x coordinate. */ private double myX;

/** The y coordinate. */ private double myY;

// constructors

/** * Constructs a Point using the provided x and y coordinates. * * @param theX The x coordinate to assign to this point. * @param theY The y coordinate to assign to this point. */ public Point(final double theX, final double theY) { myX = theX; myY = theY; }

/** * Constructs a point at the origin (0, 0). */ public Point() { myX = DEFAULT_X; myY = DEFAULT_Y; }

public Point(final Point theP) { myX = Objects.requireNonNull(theP).myX; myY = Objects.requireNonNull(theP).myY; }

/** * What is the x coordinate? * * @return the x coordinate */ public double getX() { return myX; }

/** * What is the y coordinate? * * @return the y coordinate */ public double getY() { return myY; }

/** * What is the distance from the (0, 0) origin (Rho)? * * Polar coordinates consist of an angle (Theta) and a distance (Rho). * * @return the distance (Rho) */ public double getRho() { return Math.sqrt(Math.pow(myX, 2) + Math.pow(myY, 2)); }

/** * What is the angle (Theta)? * * Polar coordinates consist of an angle (Theta) and a distance (Rho). * * @return the angle (Theta) in radian measure */ public double getThetaInRadians() { return Math.atan2(myY, myX); }

/** * What is the angle (Theta)? * * Polar coordinates consist of an angle (Theta) and a distance (Rho). * * @return the angle (Theta) in degrees */ public double getThetaInDegrees() { return Math.atan2(myY, myX) * HALF_CIRCLE / Math.PI; }

/** * What is the distance to the specified point? * * precondition: theOtherPoint is not null * * @param theOtherPoint The other point. * @return the distance from the current point to the specified point * @throws NullPointerException if theOtherPoint is null */ public double calculateDistance(final Point theOtherPoint) { final double dx = myX - Objects.requireNonNull(theOtherPoint).myX; final double dy = myY - Objects.requireNonNull(theOtherPoint).myY; return Math.sqrt(dx * dx + dy * dy); }

/** * Set the x and y coordinates to the specified values! * * @param theX the new x value to set * @param theY the new y value to set */ public void setLocation(final double theX, final double theY) { myX = theX; myY = theY; }

/** * Translate by the specified values! * * Translates this point, at location (x,y), by theX along the x axis and theY along the y * axis so that it now represents the point (x + theX, y + theY). * * @param theX The distance to translate along the x axis. * @param theY The distance to translate along the y axis. */ public void translate(final double theX, final double theY) { myX += theX; myY += theY; }

// overridden methods from class Object

// Q1. Override the toString() method. Use String Builder to print "Point (x, y)" The x, y // value should be formatted to 3 decimal places

// Q2. Override the Equals() method.

// Q3. Override the hashCode() method.

public static void main(final String[] theArgs) { final Point p = new Point(2, 3); System.out.println(p); final Point p1 = new Point(1, 2); final Point p2 = new Point(1, 2);

System.out.println(p1 == p2); // The statement objectA == objectB compares the memory // addresses of objectA and objectB System.out.println(p1.equals(p2)); System.out.println(p1.equals(null)); // Calling objectA.equals(null) will not cause // an exception to be thrown.

// System.out.print(p1.hashCode() + " " + p2.hashCode()+ " " ); // System.out.println(p1.hashCode() == p2.hashCode()); //If objectA.equals(objectB) is // true then // //objectA .hashCode() == objectB .hashCode()must also be true.

}

}