package updot;import java.awt.*;import java.awt.event.*;import java.applet.*;public class oval extends Applet {  boolean isStandalone = false;  int i;  int a[]={0,0,255};  boolean flag[]={true,true,false};  Color mycolor;  int x,y;  /**Get a parameter value*/  public String getParameter(String key, String def) {    return isStandalone ? System.getProperty(key, def) :      (getParameter(key) != null ? getParameter(key) : def);  }  /**Construct the applet*/  public oval() {  }  /**Initialize the applet*/  public void init() {    try {      jbInit();    }    catch(Exception e) {      e.printStackTrace();    }  }  /**Component initialization*/  private void jbInit() throws Exception {    this.setBackground(Color.white);    this.addMouseListener(new java.awt.event.MouseAdapter() {      public void mousePressed(MouseEvent e) {        this_mousePressed(e);      }    });  }  /**Get Applet information*/  public String getAppletInfo() {    return "Applet Information";  }  /**Get parameter info*/  public String[][] getParameterInfo() {    return null;  } public void update(Graphics g){ paint(g); }  void this_mousePressed(MouseEvent e) {    x=e.getX();    y=e.getY();    for(i=0;i<3;i++){      if(a[i]<=10)          flag[i]=true;      if(a[i]>=245)          flag[i]=false;      if(flag[i]==true)         a[i]+=10;      else         a[i]-=10;     }    repaint();  }  public void paint(Graphics g){   mycolor=new Color(a[0],a[1],a[2]);   g.setColor(mycolor);   g.fillOval(x-10,y-10,20,20);  }}