1
00:00:01,020 --> 00:00:03,180
To spice things up a little bit,

2
00:00:03,240 --> 00:00:07,470
I've prepared some fun examples. For each example,

3
00:00:07,470 --> 00:00:13,380
I'll read the task, and then I'll show you what the result should look like.

4
00:00:13,450 --> 00:00:20,050
Anyway, you can always find the solutions attached to this very lesson.

5
00:00:20,220 --> 00:00:22,300
Task number one.

6
00:00:22,440 --> 00:00:25,490
Whatever text we send to the Server,

7
00:00:25,650 --> 00:00:29,070
Server returns it in ALL CAPS.

8
00:00:29,340 --> 00:00:42,030
Let's see what that looks like.

9
00:00:42,060 --> 00:00:44,820
I'm going to run several clients right away,

10
00:00:47,590 --> 00:00:59,200
and I'm going to go to - for example - the second client, and I'm going to say "hi" - it returns it in upper

11
00:00:59,200 --> 00:01:06,690
case. And then I'm going to say "exit". It returns "exit" in upper case and then the socket for this client

12
00:01:06,780 --> 00:01:08,730
is closed.

13
00:01:08,730 --> 00:01:17,820
I'm going to go to the first client, and I'm going to say something else - and then I'm going to type "EXIT"

14
00:01:17,910 --> 00:01:19,250
in all caps.

15
00:01:19,410 --> 00:01:28,630
It returns the same thing, and then the socket is closed.

16
00:01:28,640 --> 00:01:32,510
That was the first one - let me close these.

17
00:01:32,510 --> 00:01:34,950
And then let's go to the second.

18
00:01:34,970 --> 00:01:45,020
Our second task is to send some text to the server, and then the server should revert that text backwards,

19
00:01:45,380 --> 00:01:48,050
and send it back to the client.

20
00:01:48,080 --> 00:01:53,190
We end the program by typing in "exit" in the client.

21
00:01:53,240 --> 00:01:59,290
Let's see what that looks like.

22
00:01:59,530 --> 00:02:06,490
Again, I'm going to run ServerMain first, and then one client is enough.

23
00:02:06,660 --> 00:02:09,090
Let's go to clients console.

24
00:02:09,420 --> 00:02:17,970
I'm going to type in "hi", and then "blah blah" and then I'm gonna type in "exit".

25
00:02:18,080 --> 00:02:22,460
So this is what our program for the second task should look like.

26
00:02:22,460 --> 00:02:28,730
I'm going to close the client, terminate the server, and then close the server too.

27
00:02:28,880 --> 00:02:34,830
And I'm also going to close these classes.

28
00:02:34,940 --> 00:02:38,950
Let's look at our third task.

29
00:02:38,980 --> 00:02:47,890
It says that we need a client to connect to the server and then ask the client to guess a number from

30
00:02:47,890 --> 00:02:53,030
1 to 20 - each client gets their own secret

31
00:02:53,040 --> 00:02:55,070
number to guess.

32
00:02:55,120 --> 00:02:56,260
All right.

33
00:02:56,260 --> 00:03:00,560
Let's see what the solution looks like.

34
00:03:00,620 --> 00:03:05,660
I'm going to run ServerMain and then a client.

35
00:03:06,270 --> 00:03:14,760
And then another client. OK I guess this is my second client.

36
00:03:14,770 --> 00:03:16,720
Let's start with guessing.

37
00:03:22,740 --> 00:03:25,380
As soon as I guessed the number I got

38
00:03:25,410 --> 00:03:26,550
"You got it!!!"

39
00:03:26,550 --> 00:03:35,760
message from the server, and then the socket closed. So I can close this client, but I'm left with my first

40
00:03:35,760 --> 00:03:39,570
client so I'm going to try to guess the number here too.

41
00:03:43,720 --> 00:03:44,170
OK.

42
00:03:44,170 --> 00:03:46,650
This time it was eight.

43
00:03:46,690 --> 00:03:51,730
I'm going to close this client too, and terminate the server.

44
00:03:51,820 --> 00:04:02,090
So this is what bonus example 2a should look like.

45
00:04:02,110 --> 00:04:12,360
Let's go to our fourth example, or 2b. This time all of the clients are going after the same number.

46
00:04:12,400 --> 00:04:20,230
So we need to generate one secret number, and you probably can guess it already -

47
00:04:20,260 --> 00:04:26,170
this time we're going to have to generate that number in the ServerMain class.

48
00:04:26,170 --> 00:04:35,620
And then when we run clients - each of the clients is going to be chasing the same number. As soon as one

49
00:04:35,620 --> 00:04:37,900
of the clients guesses the number,

50
00:04:37,900 --> 00:04:39,530
the game is over.

51
00:04:39,550 --> 00:04:41,870
Let's see what that will look like.

52
00:04:41,890 --> 00:04:46,620
I'm going to open my three classes.

53
00:04:46,780 --> 00:04:53,260
I'm going to run ServerMain once, and then I'm going to run two clients

54
00:04:58,370 --> 00:04:58,930
here.

55
00:04:58,940 --> 00:05:11,520
I'm going to say "Harvey" for example, and then I'm going to go to my second client and I'm going to say

56
00:05:13,030 --> 00:05:13,790
"Samantha",

57
00:05:13,820 --> 00:05:15,270
for example.

58
00:05:15,760 --> 00:05:16,260
OK.

59
00:05:16,350 --> 00:05:19,410
Let's get to the guessing part.

60
00:05:36,410 --> 00:05:37,160
OK, I was beginning to think it was going to be the very last number.

61
00:05:37,170 --> 00:05:40,680
OK, I was beginning to think it was going to be the very last number.

62
00:05:40,680 --> 00:05:41,280
OK, I was beginning to think it was going to be the very last number.

63
00:05:41,280 --> 00:05:43,470
So Samantha got the number.

64
00:05:43,470 --> 00:05:46,200
Let's see what's going on with Harvey.

65
00:05:46,200 --> 00:05:51,890
If I try and guess a number here - it's already been guessed.

66
00:05:52,020 --> 00:05:59,820
And this is the message that I get from the server - that Samantha has already guessed the number.

67
00:05:59,820 --> 00:06:02,520
That's all the explanations you'll need.

68
00:06:02,520 --> 00:06:06,410
You can find the solutions attached to this lesson,

69
00:06:06,420 --> 00:06:13,860
but if you have any additional questions, just send me a message or post your question in the Q&A section.

70
00:06:13,860 --> 00:06:14,460
but if you have any additional questions, just send me a message or post your question in the Q&A section.