1 00:00:00,140 --> 00:00:06,570 So this loop is going to be actually executed until the value of this response valuable is less than 2 00:00:06,960 --> 00:00:09,210 the value of the lives of these people. 3 00:00:09,300 --> 00:00:10,420 Ari OK. 4 00:00:10,890 --> 00:00:15,770 So the length of these people rates are a the value of the length of these people rates it is 14. 5 00:00:15,810 --> 00:00:16,260 OK. 6 00:00:16,260 --> 00:00:20,430 These people rates rate is going to actually accept 14 integer numbers. 7 00:00:20,430 --> 00:00:27,290 So after each execution of this for loop the value of this response variable is going to be incremented 8 00:00:27,300 --> 00:00:31,400 by 1 OK until it reaches number 15. 9 00:00:31,650 --> 00:00:32,050 OK. 10 00:00:32,070 --> 00:00:33,780 So number 13 is less than 14. 11 00:00:33,780 --> 00:00:34,160 OK. 12 00:00:34,230 --> 00:00:39,410 So this condition evaluates to true and then is going to actually go inside of this for a loop here 13 00:00:39,960 --> 00:00:42,240 and then it can actually execute this line of code here. 14 00:00:42,270 --> 00:00:44,350 So people rates some number first time. 15 00:00:44,370 --> 00:00:45,100 OK. 16 00:00:45,120 --> 00:00:46,680 So people rates brackets. 17 00:00:46,710 --> 00:00:49,460 Number 15 is number six. 18 00:00:49,470 --> 00:00:56,440 OK the value that is inside of the index number 14 of these people rates are 8 is number six. 19 00:00:56,460 --> 00:00:56,940 OK. 20 00:00:57,120 --> 00:01:01,520 And here we have plus plus occurrence stop number six. 21 00:01:01,590 --> 00:01:02,410 OK. 22 00:01:02,580 --> 00:01:05,110 So we have number 6 here. 23 00:01:05,880 --> 00:01:09,350 And then it's going to actually go inside of this occurrence rate. 24 00:01:09,690 --> 00:01:14,650 And then it's going to go inside of the index number six of this occurrence. 25 00:01:14,880 --> 00:01:20,840 So as you can see here we don't have an index number six inside these accounts occurrence. 26 00:01:21,170 --> 00:01:21,600 OK. 27 00:01:21,660 --> 00:01:27,670 We cannot access the value of an index that actually doesn't exist in death in that area. 28 00:01:27,690 --> 00:01:30,900 That's why that our application actually crashed. 29 00:01:31,140 --> 00:01:37,110 As you can see it says every index out of bounds exception lenth six index six. 30 00:01:37,290 --> 00:01:38,850 OK. 31 00:01:39,180 --> 00:01:40,590 So hopefully that makes sense. 32 00:01:40,620 --> 00:01:43,160 And this number six is the cause of the error. 33 00:01:43,170 --> 00:01:43,570 OK. 34 00:01:43,620 --> 00:01:49,050 And here in order to actually catch the error and let the application actually run we can actually use 35 00:01:49,320 --> 00:01:51,620 our TRY CATCH exception here. 36 00:01:51,650 --> 00:01:52,350 OK. 37 00:01:52,860 --> 00:01:56,600 So now that me actually comment out this line of quote here. 38 00:01:56,730 --> 00:02:04,800 And remember we don't usually use try catch exceptions in are actually applications in our programs. 39 00:02:04,800 --> 00:02:10,710 You have to out you have to actually consider writing your codes actually more carefully in order not 40 00:02:10,710 --> 00:02:14,440 to are getting errors like this are out of bounds exception. 41 00:02:14,490 --> 00:02:19,210 But for now I want to actually show you what this try catch exception is actually like. 42 00:02:19,410 --> 00:02:21,650 And here I can just type in try. 43 00:02:21,770 --> 00:02:22,620 OK. 44 00:02:22,830 --> 00:02:27,300 And I need to open and close this try catch exception by using these curly braces. 45 00:02:27,450 --> 00:02:33,760 And after this and in cold embrace of this try here I can just type in church. 46 00:02:34,130 --> 00:02:34,710 OK. 47 00:02:34,850 --> 00:02:41,840 An inside Apprentice's I can just type in every index out of bounds exception as you can see. 48 00:02:41,940 --> 00:02:48,630 This is the type of the error that you actually get for actually accessing the value of an index that 49 00:02:48,660 --> 00:02:51,130 actually doesn't exist in that array. 50 00:02:51,240 --> 00:02:51,630 OK. 51 00:02:51,630 --> 00:02:54,350 And we you to give our name to this error. 52 00:02:54,630 --> 00:03:02,640 For example open and closed his catch statement by using these curly braces and here in say try statement 53 00:03:02,730 --> 00:03:08,800 here inside the tray statement I can actually type in plus plus occurrence. 54 00:03:09,070 --> 00:03:15,750 OK brackets people rates brackets respond. 55 00:03:16,090 --> 00:03:16,970 OK. 56 00:03:17,080 --> 00:03:22,200 If we actually put the same line of code that you actually put here and inside of the catch statement 57 00:03:22,810 --> 00:03:28,940 I can actually output the informations that are actually related to this exception to the lock. 58 00:03:28,980 --> 00:03:32,800 OK so I can't just type in log that's I. 59 00:03:33,350 --> 00:03:34,170 OK. 60 00:03:34,210 --> 00:03:37,860 At inside Apprentice's I just need to put in two double quotes. 61 00:03:38,000 --> 00:03:40,560 Oh gee what a comma. 62 00:03:41,040 --> 00:03:44,290 And here refers to the name of this exception here E.. 63 00:03:44,830 --> 00:03:47,200 That's too strange. 64 00:03:47,450 --> 00:03:48,270 OK. 65 00:03:48,630 --> 00:03:51,820 And I need to actually put in a semicolon at the end of my statement. 66 00:03:51,840 --> 00:03:55,680 So now it's actually one of project and see what happens. 67 00:03:55,770 --> 00:03:56,820 OK everyone. 68 00:03:56,820 --> 00:04:04,500 Now as you can see our application is actually running on this emulator and this time fortunately our 69 00:04:04,500 --> 00:04:06,010 application didn't crash. 70 00:04:06,030 --> 00:04:06,360 OK. 71 00:04:06,390 --> 00:04:12,010 Despite the fact that we had we have this number six in sight these people rates are. 72 00:04:12,260 --> 00:04:12,840 OK. 73 00:04:13,080 --> 00:04:20,010 Our application did it didn't crash because we actually used try catch here try catch statement here 74 00:04:20,400 --> 00:04:26,050 in order to actually catch the error and output the description of that error to the log. 75 00:04:26,160 --> 00:04:26,930 OK. 76 00:04:27,150 --> 00:04:31,680 So here inside the log this local level here choose for. 77 00:04:31,860 --> 00:04:32,290 OK. 78 00:04:32,370 --> 00:04:37,790 And inside the search bar I can just type in L or g with capital letters. 79 00:04:37,800 --> 00:04:43,950 Now as you can see we can actually see the descriptions of the error Java like that are index out of 80 00:04:43,950 --> 00:04:47,250 bounds exception LeDuff 6 index 6. 81 00:04:47,430 --> 00:04:52,830 So we just are here as you can see our application is run successfully and our application is actually 82 00:04:52,830 --> 00:04:53,680 working right. 83 00:04:53,710 --> 00:04:55,380 And we just caught the error here. 84 00:04:55,530 --> 00:05:02,420 As you can see in line 49 fluid 14 free as you can see we just catch the either of type Arey index out 85 00:05:02,420 --> 00:05:08,090 of bounds exception OK instead of just actually writing an hourly index out of an exception I could 86 00:05:08,170 --> 00:05:11,060 I could just type an exception exception. 87 00:05:11,300 --> 00:05:11,810 OK. 88 00:05:11,930 --> 00:05:16,640 And in this way we could actually get the descriptions about the error so let's actually do it on our 89 00:05:16,640 --> 00:05:17,330 project. 90 00:05:17,330 --> 00:05:21,370 So as you can see here our application is actually unique on this emulator. 91 00:05:21,380 --> 00:05:26,300 And again we can see the descriptions of of this error here inside the lock. 92 00:05:26,390 --> 00:05:27,370 OK. 93 00:05:27,620 --> 00:05:34,670 So by using Truscott's statement we actually can catch the errors but this is not the right way to actually 94 00:05:34,670 --> 00:05:35,670 write our own code. 95 00:05:35,690 --> 00:05:36,180 OK. 96 00:05:36,320 --> 00:05:44,330 We should actually write code in a way that is actually completely perfect and cannot actually result 97 00:05:44,480 --> 00:05:45,010 in an error. 98 00:05:45,020 --> 00:05:45,460 OK. 99 00:05:45,500 --> 00:05:50,660 And here I just wanted to show you how you can actually use Tractate statement in order to actually 100 00:05:50,930 --> 00:05:53,720 output the descriptions of those errors to their log. 101 00:05:53,780 --> 00:05:54,240 OK. 102 00:05:54,380 --> 00:05:57,350 So I think that's enough for this theater the. 103 00:05:57,560 --> 00:06:02,930 And if you have any questions please post the discussion in the course and I'll do my best to answer 104 00:06:02,990 --> 00:06:04,460 all of your questions. 105 00:06:04,460 --> 00:06:08,460 Thank you very much for watching and I'll see you in the next year to Hollywood.