Cannot find symbol error?
Hey, just a simple question here...
I'm doing some exercices of BlueJ and I gotta build the method "join", to join a member to an ArrayList called "members". The thng is that when I compile it sends me the error "cannot find symbol - method add(Membership)"
I'll pass you the whole code:
Code:
import java.util.ArrayList;
/**
* Store details of club memberships.
*
* @author (your name)
* @version (a version number or a date)
*/
public class Club
{
// Define any necessary fields here ...
private ArrayList<String> members;
/**
* Constructor for objects of class Club
*/
public Club()
{
// Initialise any fields here ...
members = new ArrayList<String>();
}
/**
* Add a new member to the club's list of members.
* @param member The member object to be added.
*/
public void join(Membership member)
{
members.add(member);
}
/**
* @return The number of members (Membership objects) in
* the club.
*/
public int numberOfMembers()
{
return members.size();
}
}
The "Membership" class has the next code (if you need):
Code:
/**
* Store details of a club membership.
*
* @author David J. Barnes and Michael Kolling
* @version 2006.03.30
*/
public class Membership
{
// The name of the member.
private String name;
// The month in which the membership was taken out.
private int month;
// The year in which the membership was taken out.
private int year;
/**
* Constructor for objects of class Membership.
* @param name The name of the member.
* @param month The month in which they joined. (1 ... 12)
* @param year The year in which they joined.
*/
public Membership(String name, int month, int year)
throws IllegalArgumentException
{
if(month < 1 || month > 12) {
throw new IllegalArgumentException(
"Month " + month + " out of range. Must be in the range 1 ... 12");
}
this.name = name;
this.month = month;
this.year = year;
}
/**
* @return The member's name.
*/
public String getName()
{
return name;
}
/**
* @return The month in which the member joined.
* A value in the range 1 ... 12
*/
public int getMonth()
{
return month;
}
/**
* @return The year in which the member joined.
*/
public int getYear()
{
return year;
}
/**
* @return A string representation of this membership.
*/
public String toString()
{
return "Name: " + name +
" joined in month " +
month + " of " + year;
}
}
I need to know what's wrong with the method "join", why is it sending me that error.
