F.What is multicasting or multicast transmission? Which Protocol is generally us

Question

F.What is multicasting or multicast transmission? Which Protocol is generally used for multicast? TCP or UDP?
G.Write the missing Code?
import java.______;
import java.______;
class Whois {
public static void main(String args[]) throws Exception {
int c;
// Create a socket connected to internic.net, port 43.
Socket s = new Socket("internic.net", 43);
InputStream in = _____ getInputStream();
OutputStream out = s.getOutputStream();
// Construct a request string.
String str = (args.length == 0 ? "osborne.com" : args[0]) + " ";
byte buf[] = str._________(); // Convert to bytes.
out.write(buf); // Send request
// Read and display response.
while ((c = in.read()) != -1) {
System.out.print((char) c); }
s.close(); } }
H.How to implement an applet into a web page using applet tag?
I.Explain how to implement an applet into a web page using applet tag?
J.How to implement an applet into a Java program?
K.Explain how to set the background color within the applet area?
L.What are the methods that control an applet’s on-screen appearance?
M.Explain how to play sound in an applet?
N.Write the missing code in the following applet.
import java.awt.*;
import java.applet.*;
public class SimpleApplet ________________ {
public void paint(Graphics g) {
_______drawString("A Simple Applet", 20, 20); } }

Questioni answer the following What is multicasting or multicast transmission? Which Protocol s generally used for multicast? TCP or UDP? B. Write the missing code? import java dass Whois public static void main(String aggs0) throws Exception "Create a socket connected to internic net, port 43. new Socket internic net, 430, Construct a request string. String str (args Jength 07 byte buMI -st 0, Convert to bytes. gut write(bu0, Send request Read and display while (c instead(0) Systom out pint(char) c).) C. How to implement pplet into a web page wsing applet tag? D, Explain how to implement an applet into a web page using applet tag? E How to implement pplet into a Java pr F. Explain how to set the background color within the applet G. What are the methods that control an a on-screen appearance? ow to play sound in an applet? l. NWdtethe missing code in the following applet. import java awt import jaya applet. public class SgpleApplet. public void paint(Graphics g) LdaNSlingTA Simple Applet', 20, 200))

Explanation / Answer

F.UDP is used for multicast/

Multicast is a one-to-many communication .

G.

/* package whatever; // don't place package name! */

import java.io.*;
import java.net.*;
class Whois {
public static void main(String args[]) throws Exception {
int c;
// Create a socket connected to internic.net, port 43.
Socket s = new Socket("internic.net", 43);
InputStream in = s.getInputStream();
OutputStream out = s.getOutputStream();
// Construct a request string.
String str = (args.length == 0 ? "osborne.com" : args[0]) + " ";
byte buf[] = str.getBytes(); // Convert to bytes.
out.write(buf); // Send request
// Read and display response.
while ((c = in.read()) != -1) {
System.out.print((char) c); }
s.close(); } }

H

<APPLET CODE="FILENAME.class" WIDTH=100 HEIGHT=100>
</APPLET>

I.

First write the applet program save as .java compile to generate the .class file then place the filename of class file in the CODE=<" "> portion and save ur .html /web page and ope in java enabled browser.

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