Please help me answer question 6 a,b from the last picture. I have included all the other necessary things on the other pictures. THANK YOU

logic for the server. In from the soc to the sender. Since there is no connection involv to interact with different clients in successive iteit is concurrent service sessions. Figure S.23 illus current clients of this lII it is t, ddr ket and then writes the ive iterations, resul a scenario w a to intrent service ses implementation, A and B, interleave Wheren with an instance of EchaServert Figure 5.20 EchoClient 1,java import java.io.* this module contains the presentation logic 5 eauthor M. L.Liu of an Echo c 7 public class Echoclient1 ( 8 static final String endMessage ". 9 public static void main(stringt 1 args) 10 Inputs 11 BufferedReader br new BufferedReader (is) treamReader is-new InputstreamReader (s ader (System.in) 12 try f System.out.printin("Welcome to the Echo client.Iln* + "What is the name of the server host?") String hostName = br.readLine(); if (hostName .length () 0) // ?f user did not enter a a hostName"localhost": I7 use the default host nane System.out.printin("Enter the port number of the server bor string portNum br.readLine() if (portNum.1ength)0) portNum- 7": /I default port number EchoClientHelper1 helper = nev EchoclientHelperl(hostName, portNum) boolean done false; String message, echo while (Idone) t System.out.println("Enter a line to receive an from the server," +"or a single peroid to quit.")i message br.readLine( )i (message.trim()) equals endMessage) 31 done = true; helper.done) else t echo helper.getEcho( message)i System.out.printin(echo) i logic for the server. In from the soc to the sender. Since there is no connection involv to interact with different clients in successive iteit is concurrent service sessions. Figure S.23 illus current clients of this lII it is t, ddr ket and then writes the ive iterations, resul a scenario w a to intrent service ses implementation, A and B, interleave Wheren with an instance of EchaServert Figure 5.20 EchoClient 1,java import java.io.* this module contains the presentation logic 5 eauthor M. L.Liu of an Echo c 7 public class Echoclient1 ( 8 static final String endMessage ". 9 public static void main(stringt 1 args) 10 Inputs 11 BufferedReader br new BufferedReader (is) treamReader is-new InputstreamReader (s ader (System.in) 12 try f System.out.printin("Welcome to the Echo client.Iln* + "What is the name of the server host?") String hostName = br.readLine(); if (hostName .length () 0) // ?f user did not enter a a hostName"localhost": I7 use the default host nane System.out.printin("Enter the port number of the server bor string portNum br.readLine() if (portNum.1ength)0) portNum- 7": /I default port number EchoClientHelper1 helper = nev EchoclientHelperl(hostName, portNum) boolean done false; String message, echo while (Idone) t System.out.println("Enter a line to receive an from the server," +"or a single peroid to quit.")i message br.readLine( )i (message.trim()) equals endMessage) 31 done = true; helper.done) else t echo helper.getEcho( message)i System.out.printin(echo)