<applet> (<applet code=”app.class” height=500 width=500>)tag is used to pass parameter in an applet. We use <PARAM> tag to pass anapplet parameters. The <PARAM> (<PARAM NAME= firstname VALUE=”REKHA”>)tag has two attributes one is NAME and other is VALUE.

<Param> tag Example in Java

import java.awt.*;

import java.applet.*;

public class app extends Applet

{

                String firstn,lastn,sex,add,city,phone,email;

                Font f1,f2;

                public void init()

                {

                                f1=new Font(“Arial”,Font.PLAIN,16);

                                f2=new Font(“Arial”,Font.BOLD,20);

                }

                public void start()

                {

                                firstn=getParameter(“firstName”);

                                if(firstn==null)

                                firstn=”Not Found”;

                                lastn=getParameter(“lastName”);

                                if(lastn==null)

                                lastn=”Not Found”;

                                sex=getParameter(“sex”);

                                if(sex==null)

                                sex=”Not Found”;

                                add=getParameter(“add”);

                                if(add==null)

                                add=”Not Found”;

                                city=getParameter(“city”);

                                if(city==null)

                                city=”Not Found”;

                                phone=getParameter(“phone”);

                                if(phone==null)

                                phone=”Not Found”;

                                email=getParameter(“email”);

                                if(email==null)

                                email=”Not Found”;

                }

                public void paint(Graphics g)

                {

                                g.setFont(f2);

                                g.drawString(“-:Detail Information about User :- “, 75,20);

                                g.setFont(f1);

                                g.drawString(” First Name of the user:”+firstn,5,60);

                                g.drawString(” Last Name of the user:”+lastn,5,80);

                                g.drawString(“Sex:”+sex,5,100);

                                g.drawString(“Address:”+add,5,120);

                                g.drawString(“City:”+city,5,140);

                                g.drawString(“Contact  no:”+phone,5,160);

                                g.drawString(“Email:”+email,5,180);

                }}

/*<applet code=”app.class” height=500 width=500>

                <PARAM NAME= firstname VALUE=”REKHA”>

                <PARAM NAME= lastname VALUE=”SETIA”>

                <PARAM NAME= sex VALUE=”FEMALE”>

                <PARAM NAME= add VALUE=”A=CIVIL”>

                <PARAM NAME= city VALUE=”PUNJAB”>

                <PARAM NAME= phone VALUE=”9876553500″>

                <PARAM NAME= email VALUE=”rekhasetia2011@gmail.com”>

</applet>

*/

Explanation….

In the above example, the user information is passed as a parameter of the <PARAM> tag. The gerParameter()retrieves the value of each parameter and displays this value on an applet. We can use <PARAM> tag in HTML document. When you are working with the <PARAM>tag, you can change the contents that are displayed on an applet by changing the parameter values in the HTML file.