Fill in the To Do regions JAVA

/** Sort Coin objects using the interface Comparable and the classes ArrayList and Collections. Todo: In this class you add the Coin objects to the list. In the Coin class you make Coin implement Comparable. */ import javax.swing.* ; import java.util.* ; public class CoinSorter { public static void main(String[] args) { ArrayList list = new ArrayList() ; //-----------Start below here. To do: approximate lines of code = 1 // add to the list Coin objects in this order: quarter, dime, nickel, dime, nickel //-----------------End here. Please do not remove this comment. Reminder: no changes outside the todo regions. list.add(new Coin(.10, "dime")) ; list.add(new Coin(.05, "nickel")) ; list.add(new Coin(.10, "Dime")) ; list.add(new Coin(.05, "Nickel")) ; System.out.println("-------------------------unsorted") ; System.out.println(list) ; System.out.println("Expected: ") ; System.out.println("[quarter(0.25), dime(0.1), nickel(0.05), Dime(0.1), Nickel(0.05)]"); Collections.sort(list) ; System.out.println("-------------------------sorted") ; System.out.println(list) ; System.out.println("Expected: ") ; System.out.println("[nickel(0.05), Nickel(0.05), dime(0.1), Dime(0.1), quarter(0.25)]") ; } } /** Coin represents a coin with a monetary value. Here we implement the Comparable interface so that when sorting Coin, the smaller coin values come first. */ //-----------Start below here. To do: approximate lines of code = 1 // Write the "class Coin ... " part so that Comparable is implemented, but leave out the public specifier since only one class can be public in a file. //-----------------End here. Please do not remove this comment. Reminder: no changes outside the todo regions. { private double value; private String name; /** Constructs a Coin object. @param aValue the monetary value of the Coin object. @param aName the name of the Coin object */ public Coin(double aValue, String aName) { value = aValue; name = aName; } /** Gets the Coin object value. @return the value */ public double getValue() { return value; } /** Gets the Coin object name. @return the name */ public String getName() { return name; } /** Gets the string rep. @return the representation */ public String toString() { return name + "(" + value + ")" ; } /** The method required by the Comparable interface for comparing objects. Make it so that the smaller coin value comes first. @return -1 if this comes first, 1 if this comes second, 0 if same */  //-----------Start below here. To do: approximate lines of code = 4 // 1. public signature ; //2. code for the -1 case ; //3. code for the 1 case ; //4. code for the 0 case.  //-----------------End here. Please do not remove this comment. Reminder: no changes outside the todo regions. }