Adding & editing strings in vectors

Question

Hi guys,
I need to add a variable (containing a user defined string) to a vector (of type Object!).
Heres a snippet of what I've got so far:
Vector<Student> studentVec = new Vector<Student>(1,1);
     public boolean addStudent(Student p)//Method to add a new student to the end of the student array
          if (currentStudent >= 10) //Checks to make sure vector isn't full
               JOptionPane.showMessageDialog(null, "You have reached the maximum number of students");
               return false;
          else //Adds new student
          {String vecName = students[currentStudent].getName();
               studentVec.add(vecName);               
               return true;
     }Any ideas?
I also have problems when trying to edit the data:
I want to edit the name of the selected Student object, but I seem to have probelms doing it. I've included the setName() function (from the "Student" class (all other functions are contained in "Module" class) below as well if this is any help?
public boolean modifyStudent(Student newData) //Edits the current student
     showCurrentStudent(); //Selects the details about the current student
     studentVec(currentStudent).setName("");
     return false;
public void setName(String n)//Prompts user to set student object's name
     n = JOptionPane.showInputDialog("Enter the name of the student");
     name = n;
}Any help would be greatly appreciated!
Edited by: dugjason on Feb 13, 2008 4:11 PM

Answer 1

* I am sorry for using jdk 1.4
* To change the template for this generated file go to
* Window>Preferences>Java>Code Generation>Code and Comments
// Use gui in Registration class
import java.util.Vector;
import javax.swing.*;
public class Registration{
     Vector studentVector;
public static void main(String args[]) {
     Registration regObj = new Registration();     
     Vector studentVector = new Vector();     
     regObj.inputStudent(studentVector); // input one student for modify to work     
     regObj.modifyStudent(studentVector,0); // edit student at element 0     
     Student studentObj = (Student)studentVector.get(0);
     System.out.println("**"+studentObj.getName());
public void inputStudent(Vector studentVectorTemp) {
     String inputName = null;
     String inputID = null;
     Student studentObj = null;
     while (inputName==null || !inputName.equals("end")) {
          inputName = JOptionPane.showInputDialog("Enter the name of the student");          
          if (inputName!=null && !inputName.equals("end")) {
               inputID = JOptionPane.showInputDialog("Enter the id of the student");
               studentObj = new Student(inputID,inputName);
               studentVectorTemp.add(studentObj);
public void modifyStudent(Vector studentVectorTemp, int whichStudent) {
     String inputName = null;
     String inputID = null;
     Student studentObj = null;
          inputName = JOptionPane.showInputDialog("Enter the name of "+whichStudent+"th student");
          inputID = JOptionPane.showInputDialog("Enter the id of "+whichStudent+"th student");
          if (studentVectorTemp!=null && studentVectorTemp.size()>whichStudent) {
               studentObj = (Student)studentVectorTemp.get(whichStudent);
               studentObj.setId(inputID);
               studentObj.setName(inputName);
               studentVectorTemp.set(whichStudent,studentObj);
* Do not use any gui in Student class
class Student{
private String id;
private String name;
public String getId() {
     return this.id;
public Student() {     
public Student(String id, String name) {
     super();
     this.id = id;
     this.name = name;
public void setId(String id) {
     this.id = id;
public String getName() {
     return this.name;
public void setName(String name) {
     this.name = name;
}Edited by: evilknighthk on Feb 13, 2008 6:43 PM