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All language subtitles for 16. Exercise 2 - Number of Lines in a file [Solution]

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Would you like to inspect the original subtitles? These are the user uploaded subtitles that are being translated: 1 00:00:00,960 --> 00:00:08,640 So in this solution, I will basically take the previous development that we had and I will just modify 2 00:00:08,640 --> 00:00:09,960 it a little bit, OK? 3 00:00:10,500 --> 00:00:20,220 So instead of count of characters, let's say new lines, new lines equals to let's say one word, let's 4 00:00:20,220 --> 00:00:26,090 call it total lines, total lines in a file, we will initialize it to one. 5 00:00:26,580 --> 00:00:28,490 And so what do we have? 6 00:00:28,680 --> 00:00:37,620 We have a file and we want to know how many lines this file has or better say we can say how many new 7 00:00:37,620 --> 00:00:40,470 line characters these file has. 8 00:00:40,740 --> 00:00:47,370 OK, so we will keep up with our previous suggestion to read a character at the time. 9 00:00:48,180 --> 00:00:57,210 And as long as we do so, we will ask if a given character equals to what? 10 00:00:57,570 --> 00:01:02,810 What do you think is the indicator for working with new lines? 11 00:01:02,850 --> 00:01:04,950 What specifies a new line? 12 00:01:05,790 --> 00:01:08,180 You're right, it's the backslash in character. 13 00:01:08,640 --> 00:01:14,760 So if we read from the file a backslash in character, then in this case what we should do, we should 14 00:01:14,760 --> 00:01:18,000 say total lines plus plus. 15 00:01:18,000 --> 00:01:19,290 Oops, I'm here. 16 00:01:20,880 --> 00:01:28,090 So incrementing total lines by one, if we found out that we have a character that equals to backslash 17 00:01:28,100 --> 00:01:37,380 Lashan because as we also already said at the end of each line here, although we cannot see a specific 18 00:01:37,380 --> 00:01:39,240 and explicit backslash end. 19 00:01:39,330 --> 00:01:46,350 But there is we also saw it in the previous video that we worked with, counting the characters. 20 00:01:46,350 --> 00:01:49,120 You've seen that the backslash was there. 21 00:01:49,500 --> 00:01:51,180 So there is a backslash in here. 22 00:01:51,330 --> 00:01:54,340 So whenever we would see a solution, we get to a new line. 23 00:01:54,660 --> 00:02:01,410 So that's what we want to count the number of times we've encountered the backslash and character. 24 00:02:02,300 --> 00:02:06,010 All right, so then we will say the total number. 25 00:02:07,770 --> 00:02:10,830 The total number of lines in these file. 26 00:02:13,760 --> 00:02:14,330 Is. 27 00:02:15,290 --> 00:02:20,840 What is the total number of lines in this file that we specified total lines. 28 00:02:21,170 --> 00:02:23,520 That's eight guys, so build and run it. 29 00:02:23,540 --> 00:02:26,390 Let's see that it works exactly as we expected. 30 00:02:26,390 --> 00:02:28,070 The total number of lines in these file. 31 00:02:28,280 --> 00:02:30,920 Three, we can also modify it. 32 00:02:30,920 --> 00:02:31,220 I don't know. 33 00:02:31,220 --> 00:02:32,390 Let's copy and paste. 34 00:02:32,720 --> 00:02:38,650 And they had a new line, Lolla, and see that now we have like seven lines. 35 00:02:38,660 --> 00:02:42,070 Let's see that it supports also they separate. 36 00:02:42,080 --> 00:02:45,860 So the total number of lines in this file is seven. 37 00:02:46,610 --> 00:02:47,200 Awesome. 38 00:02:47,690 --> 00:02:48,790 Congratulations. 39 00:02:49,100 --> 00:02:49,980 Good job, guys. 40 00:02:50,730 --> 00:02:51,920 So, yeah. 41 00:02:53,040 --> 00:02:54,330 We will move on. 42 00:02:54,660 --> 00:02:55,280 Good luck. 3666