Problems getting Vector.remove(Vector) to work with my class
I have a class EmployeeId that has a single field, int myId. I have overridden the equals function and hashCode function and I have implemented the Comparable interface. Why does the code below print "3" instead of "2" ?
Vector<EmployeeId> vec1 =new Vector<EmployeeId>();
Vector<EmployeeId> vec2 =new Vector<EmployeeId>();
vec1.add(new EmployeeId(100));
vec1.add(new EmployeeId(200));
vec1.add(new EmployeeId(300));
vec2.add(new EmployeeId(200));
vec1.remove(vec2);
System.out.println(vec1.size());
Here is the EmployeeId class...
publicclass EmployeeIdimplements Comparable{
int myId;
/** Creates a new instance of EmployeeId */
public EmployeeId(int id){
myId = id;
}
publicint compareTo(Object eid){
return myId-((EmployeeId)eid).myId;
}
publicboolean equals(Object eid){
return ((EmployeeId)eid).myId == myId;
}
publicint hashCode(){
return myId;
}
publicint getId(){
return myId;
}
}
