import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.util.*;
 
 
public class DrawOval extends JFrame implements MouseListener{
    Container con = getContentPane();
    ArrayList<Goal> allOvals;
    Goal parentOval;
    double x, y;
    
    /** Creates a new instance of Main */
    public DrawOval() {
        super.setTitle("Drawing Goal Hierarchy");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        con.addMouseListener(this);
        allOvals = new ArrayList<Goal>();
        parentOval = null; 
       
        
    }
    
    public void mouseClicked(MouseEvent e){
        x = e.getX();
        y = e.getY();
 
        Goal newGoal = new Goal("title", x , y , parentOval);
        if(parentOval == null){
            parentOval = newGoal;
        }
    }
    
    public void mouseEntered(MouseEvent e){
        
    }
    
    public void mouseExited(MouseEvent e){
        
    }
    
    public void mousePressed(MouseEvent e){
        
    }
    
    public void mouseReleased(MouseEvent e){
        
    }
    
    public String getToolTipText(MouseEvent e){
        return parentOval.getToolTipText();
    }
    
    public void paint (Graphics g){
        
        Graphics2D g2 = (Graphics2D)g;
        for (Goal goal : allOvals){
            goal.drawGoal(g2);
        }
    }
 
    public static void main(String[] args) { 
        Goal go = new Goal("CG1", x, y, parentOval);
        go.setSize(500, 400);
        go.setVisible(true);
      
    }
    
}

import java.awt.*;
import javax.swing.*;
import java.awt.geom.*;
 
 
public class Goal extends JPanel{
    private String title;
    private Point2D.Double position;
    Goal parent;
    int x, y , width = 100, height = 60;
    
   private String gName, gType, gLink, gDescription, gFormal, gPattern, gOwner, dCreated, dModfied;
 
    /** Creates a new instance of Goal */
    public Goal(String title, double x, double y) {
        this(title, x, y, null);
 
    }
    public Goal(String title, double x, double y, Goal parent) {
        this.title = title;
        position = new Point2D.Double(x, y);
        
        this.parent = parent;
    }
    public void setPosition(double x, double y) {
        position.x = x;
        position.y = y;
        
    }
    public java.awt.geom.Point2D.Double getPosition() {
        return (java.awt.geom.Point2D.Double)position.clone();
    }
    public void drawGoal(java.awt.Graphics2D g2) {
        //draw the oval
        Ellipse2D.Double oval1 = new Ellipse2D.Double(x, y, width, height);
        g2.draw(oval1);
 
        //draw the title
        g2.drawString(title, x, y);
        
        if (parent != null) {
            g2.draw(new java.awt.geom.Line2D.Double(position, parent.getPosition()));
        }
    }
    
    public void setToolTipText(String nm, String gt, String gl, String gd, String gf, String gp, String go, String dc, String dm){
        this.gName = nm;
        this.gType = gt;
        this.gLink = gl;
        this.gDescription = gd;
        this.gFormal = gf;
        this.gPattern = gp;
        this.gOwner = go;
        this.dCreated = dc;
        this.dModfied = dm;
        
    }
    
    public String getToolTipText(){
        return gName + "\n " + gType + "\n " +  gLink + "\n " +  gDescription +"\n " + 
                gFormal + "\n" +  gPattern + "\n " +  gOwner  + "\n " + dCreated  + "\n " + dModfied;
        
    }
       
 
}

System.out.println