1 00:00:00,660 --> 00:00:06,660 Throughout this course, we'll be getting you involved in a lot of these interactive coding exercises. 2 00:00:07,050 --> 00:00:11,820 And the idea is that you're not just sitting here watching me talk that you're actually putting everything, 3 00:00:11,820 --> 00:00:13,350 you're learning into practice. 4 00:00:13,620 --> 00:00:15,600 That way, it actually becomes your own. 5 00:00:15,900 --> 00:00:21,780 Is a great because we can give you instructions and show you what should happen if you write the correct 6 00:00:21,780 --> 00:00:22,170 code. 7 00:00:22,440 --> 00:00:27,630 What it needs to do and you'll be able to write your code as well as see it run in the console. 8 00:00:28,200 --> 00:00:32,850 Once you're done with your code, you'll be able to submit it and see the tests run. 9 00:00:33,540 --> 00:00:39,720 And if you've written the code correctly, then all of the tests will pass if your code isn't doing 10 00:00:39,720 --> 00:00:40,720 what it's supposed to. 11 00:00:41,070 --> 00:00:45,600 Then when you click Submit, you'll get feedback and you'll see what it's meant to do and what your 12 00:00:45,600 --> 00:00:47,070 code is actually doing. 13 00:00:47,070 --> 00:00:50,280 So you'll be able to use that to figure out what's wrong and fix your code. 14 00:00:50,790 --> 00:00:55,620 And it's through a lot of these exercises that you're going to level up and you're going to become a 15 00:00:55,620 --> 00:00:56,340 better coder. 16 00:00:56,940 --> 00:01:02,100 Now, in order for you to get set up on our coding rooms, we're going to have to get you signed up 17 00:01:02,400 --> 00:01:04,260 and registered with our course. 18 00:01:04,770 --> 00:01:10,830 So in order to do this, I want you to first head over to Coding Room WSJ.com and then sign up for a 19 00:01:10,890 --> 00:01:11,970 student account. 20 00:01:12,690 --> 00:01:18,570 Now this is completely free, and all you have to do is just to click, sign up, put in your email 21 00:01:18,570 --> 00:01:23,820 and password, and then you can choose Student for this question. 22 00:01:23,820 --> 00:01:24,510 Who are you? 23 00:01:25,080 --> 00:01:33,360 And then put in your first name and last name and click Finish next in order to get hold of the joining 24 00:01:33,360 --> 00:01:33,660 link. 25 00:01:33,810 --> 00:01:37,800 I want you to go to the course resources for the current lesson on Udemy. 26 00:01:38,070 --> 00:01:43,530 So the lesson is interactive coding, exercise printing, and then I want you to click on the dropdown 27 00:01:43,530 --> 00:01:48,420 list and you should see step one sign up to coding rooms, which you should have already done. 28 00:01:48,810 --> 00:01:51,770 And then step two is Join our coding group. 29 00:01:51,780 --> 00:01:53,280 So I want you to click on that link. 30 00:01:53,790 --> 00:01:59,640 And once you've clicked on that link, then it should automatically enroll you into our 100 days of 31 00:01:59,640 --> 00:02:06,420 code, the complete Python Pro Bootcamp, and you should now be able to see every day's corresponding 32 00:02:06,420 --> 00:02:08,070 interactive coding exercises. 33 00:02:08,460 --> 00:02:14,250 So, for example, on day one, there are four exercises and they are named exactly the same as what 34 00:02:14,250 --> 00:02:15,690 you see in Udemy. 35 00:02:15,720 --> 00:02:21,720 So this is interactive coding exercise one which is printing, debugging, practice, input function 36 00:02:21,720 --> 00:02:26,970 and variables, and you see all the same ones over here that you'll be able to attempt. 37 00:02:28,050 --> 00:02:32,700 Now, the next time when you log in, all you have to do is just go into your courses and you should 38 00:02:32,700 --> 00:02:38,760 see the interactive coding exercises for the 100 days of code and you will be able to continue where 39 00:02:38,760 --> 00:02:39,360 you left off. 40 00:02:40,110 --> 00:02:42,950 Now let's get started with the first exercise. 41 00:02:42,960 --> 00:02:45,090 That's the objective of this lesson. 42 00:02:45,570 --> 00:02:48,290 So we're going to go into day one and it might be collapsed. 43 00:02:48,300 --> 00:02:53,520 If so, just go ahead and expand it and then click on exercise one printing. 44 00:02:54,060 --> 00:02:59,460 And here you see the instructions for what you need to do in order to complete this coding exercise. 45 00:03:00,030 --> 00:03:03,600 Now, I want you to go ahead and click on Open Assignment Workspace. 46 00:03:04,260 --> 00:03:09,390 And here you'll be able to see the instructions on one side of the pain. 47 00:03:09,750 --> 00:03:12,990 You'll be able to have your mind up high, which is where you write your code. 48 00:03:13,260 --> 00:03:16,260 So all the lines below here, you can just type your code out. 49 00:03:16,530 --> 00:03:23,460 And then once you're done writing your code, I want you to test it by running your code. 50 00:03:23,730 --> 00:03:30,600 So hitting this run button and you'll see the result of your code being run in the console down here. 51 00:03:30,900 --> 00:03:35,820 Now, once you think you've completed the coding exercise, according to all the instructions over here, 52 00:03:36,180 --> 00:03:41,700 I want you to go ahead and test your code and you can test your code by simply hitting submit. 53 00:03:42,600 --> 00:03:47,310 Now, don't worry about all of this where it says the submission will count towards your grade for the 54 00:03:47,310 --> 00:03:47,870 assignment. 55 00:03:47,880 --> 00:03:50,160 There are no grazes, no time limits. 56 00:03:50,580 --> 00:03:52,770 Nobody is going to check what you've done. 57 00:03:53,040 --> 00:03:58,800 It's all for the benefit of your learning, so you can submit your code to as many times as you like. 58 00:03:59,400 --> 00:04:04,530 So once you hit submit, it's going to run the automated test that we've set up behind the scenes, 59 00:04:04,830 --> 00:04:09,080 and it's going to check to make sure that your code is doing what it's supposed to. 60 00:04:09,930 --> 00:04:17,580 So for example, in this case, my tests have not passed because there's a cross here and note that 61 00:04:17,580 --> 00:04:21,360 sometimes they'll be more than one test so you can scroll down and see the other ones. 62 00:04:21,960 --> 00:04:27,690 And the reason why I didn't pass, as they've shown here is this is my actual output. 63 00:04:27,690 --> 00:04:28,980 This is what my coded. 64 00:04:29,490 --> 00:04:32,640 And this is what the expected output is supposed to be. 65 00:04:32,850 --> 00:04:34,560 And there's a whole bunch of differences. 66 00:04:34,830 --> 00:04:37,050 This does not look like this. 67 00:04:37,590 --> 00:04:39,630 So then we have to go and fix it. 68 00:04:40,020 --> 00:04:43,680 And I've left some feedback in some of the lessons to help you in case you get stuck. 69 00:04:43,950 --> 00:04:46,440 But also, there are hints in some of the instructions. 70 00:04:46,470 --> 00:04:48,840 So just make sure that you read everything. 71 00:04:49,080 --> 00:04:54,630 Now, if you want to, or if you get really, really stuck, you can take a look at the solution. 72 00:04:54,900 --> 00:04:59,550 Now, I don't recommend looking at the solution code unless you actually just checking to make sure 73 00:04:59,820 --> 00:04:59,940 that. 74 00:05:00,010 --> 00:05:05,830 Something hasn't gone majorly wrong or you're not completely stuck or just for whatever reason, I really, 75 00:05:05,830 --> 00:05:11,290 really want you to persevere and try your best to actually write the code yourself and to solve the 76 00:05:11,290 --> 00:05:14,290 issues and figure out how to make all the test pass. 77 00:05:14,860 --> 00:05:19,410 But if you need to look at the solution, they are available on Split. 78 00:05:19,420 --> 00:05:23,440 So just click on this link and it'll take you to the solution page. 79 00:05:23,620 --> 00:05:28,300 In order to see the files, you can either fork the apple as you have done before. 80 00:05:28,570 --> 00:05:35,890 You'll get a copy of this solution file or what I think is much simpler is simply click on show files 81 00:05:36,370 --> 00:05:39,550 and then click on this main maned py file. 82 00:05:39,670 --> 00:05:45,970 And then you will see the solution code on this page without having to fork a copy of this rappel. 83 00:05:46,000 --> 00:05:47,860 But you can do it any number of ways. 84 00:05:47,860 --> 00:05:50,620 Whichever way suits you best is fine. 85 00:05:50,740 --> 00:05:57,370 Now, once you have written your code correctly, you should be able to see all the tests pass and passing. 86 00:05:57,670 --> 00:06:02,860 It means that there's a little tick along each of these and you'll see in this one, there's only one 87 00:06:02,860 --> 00:06:05,960 test and this is passed, so you get a score of 100 percent. 88 00:06:06,400 --> 00:06:12,580 And the actual output that your code is created in the console now looks exactly same as expected. 89 00:06:12,940 --> 00:06:18,670 So you are now done and you can go back to your other assignments and you can continue. 90 00:06:19,360 --> 00:06:26,350 So this is a really simple interface, and we've switched to this from Split because it actually disabled 91 00:06:26,410 --> 00:06:30,280 their classroom technology, which looks basically exactly the same as this. 92 00:06:30,700 --> 00:06:35,080 And we wanted to provide you the best learning experience possible. 93 00:06:35,090 --> 00:06:37,060 So we've switched over to coding rooms. 94 00:06:37,450 --> 00:06:41,050 And you should be able to sign up and get started without any issue. 95 00:06:41,440 --> 00:06:47,890 Now, remember, at the end of the lesson, I will go through the solution with you step by step, explaining 96 00:06:47,890 --> 00:06:48,880 the solution as well. 97 00:06:49,150 --> 00:06:50,050 So if you get stuck? 98 00:06:50,230 --> 00:06:52,840 Don't worry, I'm here for you every step of the way. 99 00:06:53,140 --> 00:06:59,140 But now it's time for you to pause the video and make sure that you've signed up for coding rooms already 100 00:06:59,140 --> 00:07:05,290 registered for a student account and then click on the link in Step two in the course resources and 101 00:07:05,290 --> 00:07:12,160 sign up for our course and then go over to the first exercise printing and give it a go. 102 00:07:12,340 --> 00:07:13,570 All right, pause the video now. 103 00:07:14,080 --> 00:07:14,500 All right. 104 00:07:14,530 --> 00:07:15,550 How did you get on? 105 00:07:16,030 --> 00:07:20,890 I really hope you gave this a good go because it's in these moments where you're going to be learning 106 00:07:20,890 --> 00:07:21,340 the code. 107 00:07:21,700 --> 00:07:26,240 Unfortunately, no amount of listening to me talk is actually going to give you these skills. 108 00:07:26,260 --> 00:07:31,630 It's only when you actually try it out and get the computer to do the thing that you wanted to do. 109 00:07:31,870 --> 00:07:35,680 That's when you become the master of the computer, also known as a programmer. 110 00:07:36,250 --> 00:07:38,740 So in this case, the instructions are pretty simple. 111 00:07:38,830 --> 00:07:44,740 We have to use what we learn about the print statement to output these three lines and notice how, 112 00:07:44,740 --> 00:07:48,340 in the skip, the lines are printing out in separate lines. 113 00:07:48,850 --> 00:07:54,280 This one gets printed than this one than this one, but because it happened so fast, it seems like 114 00:07:54,280 --> 00:07:56,560 as if they're getting printed as a single block. 115 00:07:57,130 --> 00:08:02,800 So we're told to write our code below this line, and we know that in order to print something, we 116 00:08:02,800 --> 00:08:05,960 use the print function with a set of parentheses. 117 00:08:06,280 --> 00:08:10,600 And inside the parentheses is where we tell it what we want it to print. 118 00:08:11,020 --> 00:08:15,850 So in the first instance, it's day one space. 119 00:08:15,910 --> 00:08:23,740 Then it's now it's really easy to make spelling mistakes, but I really encourage you to actually type 120 00:08:23,740 --> 00:08:28,960 out anything that you put into your code rather than just simply copying and pasting it. 121 00:08:29,350 --> 00:08:31,670 Now, of course, it works exactly the same way. 122 00:08:31,690 --> 00:08:39,370 I could just copy and paste the code in here, but it's often in these cases where you make mistakes 123 00:08:39,370 --> 00:08:44,590 like, for example, forgetting to add the double quotes around the text that you want to print. 124 00:08:45,220 --> 00:08:50,260 I really recommend just typing out the code for practice whenever you're doing these code challenges. 125 00:08:51,640 --> 00:08:55,750 Now, the last line that we want to print is a little bit complicated. 126 00:08:56,080 --> 00:09:02,050 It's almost like print inception, because what we want to print is this function. 127 00:09:02,140 --> 00:09:04,240 This is how we write our function. 128 00:09:04,750 --> 00:09:08,980 And that has to go inside here inside a set of double quotes. 129 00:09:09,430 --> 00:09:13,120 So let's open up a double quotes and then write our print statement. 130 00:09:13,690 --> 00:09:17,740 And in this case, I'm actually using a single quote. 131 00:09:18,250 --> 00:09:21,490 And I'll tell you just in a little moment why that is. 132 00:09:22,420 --> 00:09:24,020 So let's add that simple quote. 133 00:09:24,040 --> 00:09:30,370 And finally, the closing parentheses this now is the entire code that you would need to be able to 134 00:09:30,370 --> 00:09:31,330 print something out. 135 00:09:31,930 --> 00:09:37,060 And when I go ahead and click run, you can see that the output looks exactly the same as what we've 136 00:09:37,060 --> 00:09:38,080 got here in the GIF. 137 00:09:38,410 --> 00:09:43,900 This is what we want, and when I click submit, you'll see that my tests all pass. 138 00:09:44,200 --> 00:09:48,760 And I can now submit my assignment, and I've now completed the coding challenge. 139 00:09:49,420 --> 00:09:55,750 Now, coming back to this single quote, why is it that I've got a single quote here rather than a double 140 00:09:55,750 --> 00:09:58,180 quote, which is what we've been using all this time? 141 00:09:58,630 --> 00:09:59,350 Well, because in. 142 00:09:59,550 --> 00:10:07,280 Python, it doesn't actually care whether if you enclose the strings, so these pieces of text are not 143 00:10:07,280 --> 00:10:13,280 to be interpreted as code inside single quotes or inside double quotes. 144 00:10:13,550 --> 00:10:15,920 It is identical to the computer. 145 00:10:16,220 --> 00:10:18,290 This honey badger literally doesn't care. 146 00:10:18,950 --> 00:10:27,140 But if you had a set of double quotes and then you wanted another set of double quotes inside the double 147 00:10:27,140 --> 00:10:27,560 quotes. 148 00:10:27,980 --> 00:10:34,400 So, for example, if I replace this with double quotes, you'll see that already the syntax highlighting 149 00:10:34,400 --> 00:10:35,900 is already screaming out to us. 150 00:10:36,200 --> 00:10:44,960 This something that's not quite right here because the colors are not the same as here, where the print 151 00:10:44,960 --> 00:10:47,420 function is in a particular color. 152 00:10:47,750 --> 00:10:54,290 The parentheses are in a particular color, and the text that is to be printed is in a yet another different 153 00:10:54,290 --> 00:10:54,650 color. 154 00:10:55,010 --> 00:10:59,210 In this case, it looks all jumbled up and we're getting some errors here. 155 00:10:59,870 --> 00:11:03,320 So now if I hit run, you'll get syntax errors. 156 00:11:04,250 --> 00:11:12,860 And the problem here is, of course, this is, of course, all code things at the end of this string 157 00:11:12,860 --> 00:11:13,640 is here. 158 00:11:14,150 --> 00:11:17,450 And so it doesn't know what on earth is going on afterwards. 159 00:11:18,290 --> 00:11:21,440 And instead, it's seeing this as a string. 160 00:11:21,860 --> 00:11:26,690 This as a string, and this is being interpreted as code. 161 00:11:27,770 --> 00:11:34,310 So when we want to use some double quotes inside another set of double quotes, commonly you'll see 162 00:11:34,310 --> 00:11:37,820 people switch to single quotes instead. 163 00:11:38,390 --> 00:11:45,590 So you could, for example, write the print statement like so and use double quotes if you want to 164 00:11:45,590 --> 00:11:46,520 print those out. 165 00:11:47,120 --> 00:11:52,820 Or you can do it the other way, which is what I had before, where we use all double quotes on the 166 00:11:52,820 --> 00:11:54,980 outside and single quotes on the inside. 167 00:11:55,490 --> 00:11:58,520 So have a play around with that, if that's at all confusing. 168 00:11:58,850 --> 00:12:03,130 But once you've tried it a few times and switched it around a few times, it should become clear of 169 00:12:03,140 --> 00:12:04,220 what it's actually doing. 170 00:12:05,000 --> 00:12:07,340 How did you get on with this challenge? 171 00:12:07,820 --> 00:12:11,570 If you ever need to see the solution, it's always down here as a link. 172 00:12:12,440 --> 00:12:15,360 So I hope you enjoy this challenge in the next lesson. 173 00:12:15,380 --> 00:12:21,620 We're going to get back to learning about Python, and we'll get to learn about strings and string manipulation. 174 00:12:22,220 --> 00:12:23,570 All of that and more. 175 00:12:23,690 --> 00:12:24,350 I'll see you there.