// Account.java

    public class Account implements Comparable<Account> {
        private String name;
        private Integer amount;
        public Account(String nm, Integer amt) {
            name = nm;
            amount = amt; }
        public static Account account(String nm, Integer amt) {
            return new Account(nm, amt); }
        public String name() { return name; }
        public Integer amount() { return amount; }
        public boolean equals(Object x) {
            if ( x == null ) return false;
            else if ( getClass() != x.getClass() ) return false;
            else return name.equals( ((Account)x).name); }

        // return -1 to sort this account before x, else 1
        public int compareTo(Account x) {
          //First, name is same
          if(this.name().equals(x.name()))
          {
             if(this.amount >= 0 && x.amount >= 0)
             {
               return -1;
             }
             //all these have at least one negative amount
             //this has a larger amount than x
             else if(this.amount >= x.amount)
             {
               return 1;
             }
             //this has a smaller amount than x
             else
             {
               return -1;
             }
          }
          else
          {
            return this.name().compareTo(x.name());
          }
        }


        public String toString() {
            return ( "(" + this.name + " " + this.amount + ")"); }
    }