Chapter 3, Problem 19C

Explanation of Solution

Methods add() and remove() for Scoreboard class without any loops:

Code for add() method:

//Define the add() method to add a new score to collection

public void add(GameEntry e)

{

/*Check whether the "numEntries" is less than length of board. */

  if (numEntries < board.length)

  {

  //Assign the new entry to score board

  board[numEntries] = e;

  //Increment "numEntries" by "1"

  numEntries++;

  }

}

Explanation:

In the above code,

• This method accepts the input parameter of “e” to add a new score entry to collection of score board.
• Check whether the “numEntries” is less than length of board. If yes,
  • Assign the new entry to score board.
  • Increment “numEntries” by “1”.

Code for remove() method:

/*Define the remove() method to remove and return a high score from collection. */

public GameEntry remove(int i) throws IndexOutOfBoundsException

{

/*Check whether the "i" is less than "0" and "i" is greater than "numEntries"...