Draw Shape later of Press Button, other implementation., where is mistake?

[joseluisbz]

Draw Shape later of Press Button, other implementation.

Cordial Greetings:
Although this question has the same purpose as another question for me, it changes the way of implementing the objective.

First declare a class:

class Object2D {
  Color mc;
  int ObType;
  static int mLINE = 1;
  static int mRECT = 2;
  int X0,Y0, X1,Y1;
  float ms;
  Graphics mg;

  Object2D(Graphics g, Color c, int t, int x0, int x1, int y0, int y1, float s){
    mg = g;     mc = c;
    ms = s;     ObType = t;
    X0 = x0;    Y0 = y0;
    X1 = x1;    Y1 = y1;
  }

  void ViewObject2D(){
    Graphics2D g2d = (Graphics2D)mg;
    g2d.setColor(mc);
    g2d.setStroke(new BasicStroke(ms));
    g2d.setPaintMode();
    if (ObType==mLINE){
      g2d.draw(new Line2D.Double(X0, X1, Y0, Y1));
    }
    if (ObType==mRECT){
      g2d.draw(new Rectangle2D.Double(X0, Y0, X1, Y1));
    }
  }
}

Now I detail how I use the class:
build an array of class type called ObjectVector
construct a method that fills the array with two objects
Create a method that displays the contents of the vector

public class Grapher extends javax.swing.JFrame {
    /** Creates new form Grapher */
  Vector<Object2D> ObjectVector = new Vector<Object2D>();
  Graphics g1d;
  ...
  public void FillVector(Graphics g){
    //Create two objects a line type and a rectangular type
    ObjectVector.addElement(new Objeto2D(g,new Color(0,0,255),Objeto2D.mLINE,100,100,200,200,1.0f));
    ObjectVector.addElement(new Objeto2D(g,new Color(0,255,0),Objeto2D.mRECT,150,150,200,200,1.5f));
  }

  public void DrawVector(){
    //Draw the contents of the vector
    if(!ObjectVector.isEmpty()){
      for (int i = 0; i<ObjectVector.size();i++){
        ObjectVector.elementAt(i).ViewObject2D();
      }
    }
  }
  ...

Let me explain ..
The paint method gets an object of type Graphics
Initializes a variable of type Graphics called g1d... this with the purpose of later use
fills the vector with two objects FillVector(g); and then draw the vector DrawVector();...

  public void paint(Graphics g) {
    this.g1d = g;
    super.paint(this.g1d);
    FillVector(g);
    DrawVector();
  }
  private void jbDrawActionPerformed(java.awt.event.ActionEvent evt) {  
    FillVector(this.g1d);
    repaint();
  }

Question:
Is there any way that after pressing the jbDraw button is drawn really as Needed and not when calling paint()?;
That is, paint only serve to initialize the graphics object and draw the objects contained in the vector ObjectVector.

  public void paint(Graphics g) {
    this.g1d = g;
    super.paint(this.g1d);
    DrawVector();
  }

Is it possible to do so requires either using another method?
Thanks ...