Use the setElement method like a new reference (or can understand member). For example: a terminal containing a lot of boat, I hope to join a new ship to the terminal, this class: Dock // Dock.java
Package com.tianyu.summer;
Import java.util. *;
Public Class Dock
{
Private int ID;
PRIVATE STRING LOCATION;
PRIVATE BOOLEAN ELECTRICITY
Private Boolean Water;
PRIVATOR SLIPS;
Public Dock (int ANID, STRING Alocation, Boolean AneElectricity, Boolean Awater)
{
SetID (anid);
SetLocation (alocation);
SETELECTRICITY (AneElectricity);
Setwater (awater);
}
Public Void AddSliptodock (Slip aslip)
{
Slips.addelement (aslip); // Connect Dock to Slip (1 ... *)
}
Public Vector getSlips ()
{RETURN SLIPS;
Public void setid (int ANID)
{id = anid;}
Public void setLocation (String Alocation)
{location = alocation;
Public void setElectricity (Boolean AneElectricity)
{electricity;
Public void setwater (Boolean Awater)
{Water = awater;}
Public int getID ()
{RETURN ID;}
Public string getLocation ()
{Return Location;
Public Boolean getElectricity ()
{Return Electricity;
Public boolean getwater ()
{RETURN Water;}
}
Vector.size () uses how many members have included in the VECTOR, return INT
Vector.ementat (i) Return the i-th element, the return type is Object, you must use forced conversion
