package ex12_01;import java.awt.*;import java.awt.event.*;import java.applet.*;import java.util.*;public class myapplet extends Applet {  boolean isStandalone = false;  /**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 myapplet() {  }  /**Initialize the applet*/  public void init() {    try {      jbInit();    }    catch(Exception e) {      e.printStackTrace();    }    //