Well-behaved objects - Objects First with Java: A Practical Introduction Using BlueJ - page 242

Code 7.1
continued
The SalesItem class

while (it.hasNext()) {
Comment current = it.next();
if (current.getVoteCount() > best.getVoteCount()) {
best = current;

}

}
return best;

}

/**
* Check whether the given rating is invalid. Return true if it is
* invalid. Valid ratings are in the range [1..5].
*/
private boolean ratingInvalid( int rating)
{

return rating < 0 || rating > 5;

}

/**
* Find the comment by the author with the given name.
*
* @return The comment if it exists, null if it doesn'>t.
*/
private Comment findCommentByAuthor(String author)
{

for (Comment comment : comments) {
if (comment.getAuthor().equals(author)) {
return comment;

}

}
return null ;

}

/**
* For a price given as an int, return a readable String
* representing the same price. The price is given in whole cents.
* For example for price==12345, the following String
* is returned: $123.45
*/
private String priceString( int price)
{

int dollars = price / 100;
int cents = price — (dollars*100);