Java Reference
In-Depth Information
return getFirstName() + " " + getLastName() + "
- " + getPosition();
}
// ** getters and setters removed for brevity **
/**
* Returns a positive integer if Player A has more
goals than Player B
* Returns a negative integer if Player A has fewer
goals than Player B
* Returns a zero if both Player A and Player B have
the same number of goals
* @param a
* @param b
* @return
*/
public static int compareByGoal(Player a, Player b){
int eval;
if(a.getGoals() > b.getGoals()){
eval = 1;
} else if (a.getGoals() < b.getGoals()){
eval = -1;
} else {
eval = 0;
}
return eval;
}
}
The
Player.compareByGoal()
method could be used to sort an array of
Player
objects. To do so, pass an array of
Player
objects (
Player[]
) to the
Ar-
rays.sort()
method as the first argument, and pass a method reference
Play-
er::compareByGoal
as the second argument. The result will be a sorted list (in as-
cending order) of
Player
objects by number of goals. The following line of code
shows how to accomplish this task.
