WEBVTT 00:00.110 --> 00:02.780 So guys, we have seen different different data types again. 00:02.810 --> 00:03.500 Hello guys. 00:03.500 --> 00:06.230 So we are going to continue the discussion with respect to Python. 00:06.230 --> 00:08.990 Already in our previous video we have discussed about variables. 00:08.990 --> 00:11.840 Now in this video we are going to discuss about data types. 00:11.870 --> 00:15.140 Now here is the detailed video outline. 00:15.260 --> 00:19.490 First of all we are going to understand the introduction to data types uh importance of data types in 00:19.490 --> 00:20.360 programming. 00:20.390 --> 00:25.220 Then we are going to explore some of the basic data types like integer floating point numbers, strings 00:25.220 --> 00:26.240 and booleans. 00:26.240 --> 00:30.950 And after that, uh, you know, after some number of videos, we are going to see advanced data types 00:31.070 --> 00:33.200 like lists, tuples, sets and dictionaries. 00:33.200 --> 00:36.440 Here there is a lot of operations that we really need to understand. 00:36.440 --> 00:39.890 So I will be discussing about this topic further going ahead. 00:39.890 --> 00:44.750 And then you also have some examples with respect to type conversion and practical example. 00:45.440 --> 00:48.620 Now first of all we need to understand the definition of data types. 00:48.620 --> 00:50.390 What exactly data types are. 00:50.390 --> 00:56.120 So here uh, data types are a classification of data which tells the compiler or interpreter how the 00:56.120 --> 00:58.280 programmer intends to use the data. 00:58.310 --> 00:58.820 Right? 00:58.820 --> 01:02.090 They determine the type of operation that can be performed on the data. 01:02.120 --> 01:06.740 The values that the data can take and the amount of memory needed to store the data. 01:06.770 --> 01:07.220 Right. 01:07.220 --> 01:09.470 And as you all know, there are different different data types. 01:09.560 --> 01:15.020 Like, you know, if I probably say integer floating, they definitely require different amount of memory, 01:15.050 --> 01:15.290 right? 01:15.320 --> 01:20.900 Whenever they are storing some kind of information like you may have int eight bit, you may have float 01:20.900 --> 01:21.920 16 bits right. 01:21.950 --> 01:26.960 So different different bits of information will be there for a specific data type. 01:26.990 --> 01:27.470 Right. 01:27.500 --> 01:30.740 Now let's understand what are the importance of data type in programming. 01:30.740 --> 01:35.120 So data types ensure that the data is stored in a very efficient way. 01:35.150 --> 01:40.580 They help in performing correct operations on data, and proper use of data types can prevent errors 01:40.580 --> 01:41.660 and bugs in the program. 01:41.660 --> 01:45.140 And obviously memory management is also one of the very key term. 01:45.170 --> 01:45.710 Okay. 01:45.740 --> 01:51.200 Now let me just go ahead and show you with respect to the code and how we can basically start with, 01:51.230 --> 01:51.710 okay. 01:51.740 --> 01:58.400 Now the first example that we are going to go ahead, right, with respect to the data types is nothing 01:58.400 --> 01:59.090 but integers. 01:59.120 --> 02:01.880 So here I'm going to basically go ahead and write integers. 02:01.880 --> 02:03.890 So this looks like a plain text. 02:03.920 --> 02:06.020 Let me delete this because I don't want this. 02:06.020 --> 02:07.460 So I will go ahead and create. 02:07.460 --> 02:10.460 So here you will be able to see integers. 02:10.460 --> 02:12.170 Example okay. 02:12.230 --> 02:16.070 And uh first of all let me just go ahead and select the kernel okay. 02:16.100 --> 02:17.480 So the kernel is over here. 02:17.510 --> 02:21.080 Now let me go ahead and create a variable of an integer type. 02:21.080 --> 02:26.660 Right now if I really want to create a variable I hope everybody is I have already told it. 02:26.660 --> 02:28.640 Let's say age is equal to 35. 02:28.640 --> 02:34.940 And if I go ahead and write type of age, this will specifically give me an integer value. 02:34.970 --> 02:39.590 As I always said, whatever topics we are seeing again it will be getting repeated. 02:39.620 --> 02:45.710 You know, we will just be seeing that how uh, more things we can actually learn about this right now. 02:45.710 --> 02:47.840 See, I have already spoken about variables. 02:47.840 --> 02:49.340 I have already spoken about integer. 02:49.340 --> 02:53.690 But since we are learning now about data types here also, you'll be able to see that so many different 02:53.690 --> 02:55.790 things are there right then. 02:55.790 --> 02:58.880 Uh, once I probably create an integer variable. 02:58.880 --> 03:01.040 You can also go ahead and create a floating point number. 03:01.040 --> 03:07.550 So let's say my floating point number over here floating point data type okay. 03:07.850 --> 03:11.120 Floating point data type here I'm going to specifically use it. 03:11.120 --> 03:19.100 And let's say over here I define like uh, you know, um sentiment or let's say I will, I will probably 03:19.100 --> 03:23.180 define the width right, or width or height or anything. 03:23.180 --> 03:24.950 So let's go ahead and define height. 03:24.950 --> 03:29.690 So let's say that if I'm writing 5.11 so this uh will be nothing. 03:29.690 --> 03:32.270 But if I go ahead and print the height. 03:32.390 --> 03:32.840 Right. 03:32.840 --> 03:36.680 And if I go ahead and print the type of the height. 03:36.890 --> 03:37.310 Right. 03:37.310 --> 03:41.540 So here you will be able to see that I will be able to get my floating point number right. 03:41.540 --> 03:44.480 So here you can see I'm able to get 5.11. 03:44.480 --> 03:46.130 And this is nothing but class float. 03:46.130 --> 03:50.720 This class was nothing but INT I've already spoken about type casting also. 03:50.750 --> 03:51.080 Right. 03:51.080 --> 03:56.150 So this is one of the other data type like floating data type uh floating data point example. 03:56.390 --> 04:00.800 Um and the next example that I can probably take is for string. 04:00.800 --> 04:02.840 So string data type example. 04:02.870 --> 04:03.380 Okay. 04:03.770 --> 04:06.020 I will be showing you more examples as we go ahead. 04:06.020 --> 04:08.420 So let me say this is name is Krish. 04:08.450 --> 04:09.140 Okay. 04:09.710 --> 04:14.030 And here you can probably see I'll go ahead and print the name. 04:14.030 --> 04:18.080 And let me just go ahead and see print type of name. 04:19.400 --> 04:19.970 Okay. 04:19.970 --> 04:22.310 So here you can actually see that okay fine. 04:22.310 --> 04:25.460 I'm able to see all these things I'm able to get this information and. 04:25.460 --> 04:26.240 All right. 04:26.240 --> 04:31.970 And similarly one more common data type that we will be specifically using is something called as boolean 04:31.970 --> 04:32.450 data type. 04:32.480 --> 04:32.990 Right. 04:33.140 --> 04:37.430 And again guys I'm not showing you much operations because operations will be coming as we go ahead. 04:37.430 --> 04:43.040 Right when we'll be learning about our next tutorial, right where we'll be learning about operators. 04:43.070 --> 04:48.290 At that time, we'll be discussing more about operations, how we can use this and probably, uh, do 04:48.320 --> 04:49.370 different types of operation. 04:49.370 --> 04:49.490 And. 04:49.490 --> 04:50.060 All right. 04:50.060 --> 04:54.800 So for Boolean, uh, what you can do is that I can directly define true or false. 04:54.800 --> 04:56.360 So if I probably use true right. 04:56.370 --> 04:58.500 So this is basically a boolean value, right. 04:58.500 --> 05:00.810 If I go ahead and see the type right. 05:00.810 --> 05:01.710 So type. 05:01.710 --> 05:03.330 So here you can see it is a bool value. 05:03.360 --> 05:03.690 Right. 05:03.690 --> 05:05.520 So this is one way how you can define it. 05:05.520 --> 05:09.150 Let's say I define saying that is true right. 05:09.150 --> 05:11.640 And I may assign it to true right. 05:11.640 --> 05:18.930 And if I go ahead and see the type of is true type of is underscore true, you will be able to see, 05:18.960 --> 05:22.140 hey, fine, I'm actually able to get the boolean value right. 05:22.170 --> 05:23.310 This is one way. 05:23.310 --> 05:28.920 The other way is that I may go ahead and directly assign a bool variable. 05:28.950 --> 05:29.520 Right. 05:29.520 --> 05:32.790 And let me just go ahead and execute this okay. 05:32.790 --> 05:37.020 So here you can see uh when we use a boolean variable right. 05:37.020 --> 05:38.610 Or let me do like this. 05:38.910 --> 05:39.300 Right. 05:39.300 --> 05:43.320 So let's say uh I want to go ahead and define a boolean variable. 05:43.320 --> 05:45.990 So I will go ahead and write bool okay. 05:46.020 --> 05:50.040 And if I go ahead and execute it right by default it is probably coming as false. 05:50.070 --> 05:56.820 Right now I can also give some other conditions like let's say uh, I have two variables, right? 05:57.240 --> 05:59.280 Uh, let's say I have two variables. 05:59.310 --> 06:00.660 Let me define it out. 06:00.690 --> 06:03.540 A is equal to ten, okay. 06:03.570 --> 06:04.830 And B is equal to ten. 06:04.860 --> 06:05.370 Okay. 06:05.400 --> 06:07.530 Now if I. 06:07.560 --> 06:10.410 Sorry this is getting added I don't know why. 06:10.440 --> 06:11.760 So B is equal to ten. 06:11.790 --> 06:12.000 Okay. 06:12.030 --> 06:13.680 So there is some built in functions and all. 06:13.680 --> 06:15.330 I think that is why it is getting applied. 06:15.330 --> 06:18.360 If I write a double equal to B right. 06:18.390 --> 06:20.220 So over here I'm able to get true. 06:20.250 --> 06:20.670 Right. 06:20.670 --> 06:25.680 And even though I see when I'm doing this specific operation, if I go and see the type it is again 06:25.680 --> 06:26.160 Boolean. 06:26.190 --> 06:26.520 Right. 06:26.550 --> 06:30.000 So Boolean is another one data type which we can specifically use. 06:30.000 --> 06:32.130 And this is just for true and false right. 06:32.340 --> 06:34.710 Uh that is why Boolean is specifically used right. 06:34.740 --> 06:37.920 So we will be seeing more of this kind of examples as we go ahead. 06:37.950 --> 06:38.730 Right. 06:40.590 --> 06:45.960 And I know you are excited to see a lot of operations, but let's go from basics. 06:45.960 --> 06:48.570 And then we will try to build up more and more concepts. 06:48.600 --> 06:52.140 Right at the end of the day, you really need to try and work hard, right? 06:52.140 --> 06:56.220 And the more you work hard, uh, it is more like you'll become more perfect in it. 06:56.250 --> 06:56.670 Right. 06:56.670 --> 07:00.900 So let's see some of the common errors that we may probably face. 07:00.930 --> 07:06.210 You know, some of the common errors that we may get, uh, whenever we are working with, uh, different 07:06.210 --> 07:12.840 different data types, let's say, uh, my result is something called as hello right now for this particular 07:12.840 --> 07:13.200 result. 07:13.230 --> 07:13.650 Right. 07:13.650 --> 07:18.060 And uh, let's say I want to go ahead and add five. 07:18.090 --> 07:18.330 Okay. 07:18.360 --> 07:19.200 Now what will happen. 07:19.230 --> 07:20.520 Let's check okay. 07:20.520 --> 07:27.120 And if I go ahead and execute this here you'll be able to see that I am getting an error right. 07:27.210 --> 07:31.710 It is saying can only concatenate string right not integer. 07:31.710 --> 07:35.760 And here you can see on the left hand side it is basically a string. 07:35.760 --> 07:40.560 And on the right hand side when I'm performing this specific operation I'm actually giving an integer. 07:40.560 --> 07:46.530 So if I really need to fix this error, all I have to do is that go ahead and write this okay. 07:46.590 --> 07:50.610 And over here I need to do the typecasting right. 07:50.640 --> 07:56.910 So let's say if I go ahead and write str of five Then this issue will definitely get fixed, right? 07:56.910 --> 08:00.150 And if I go ahead and print it, print the result. 08:00.510 --> 08:03.780 Okay, so here you will be able to see I'm able to get hello five. 08:03.810 --> 08:06.060 Now that is the power of type casting. 08:06.090 --> 08:10.770 See in this particular case when I was trying to concatenate or add five over here. 08:10.800 --> 08:11.100 Right. 08:11.100 --> 08:14.490 And obviously it is not possible because this is a string and this is a numerical value. 08:14.520 --> 08:16.500 We cannot perform any mathematical operation. 08:16.530 --> 08:16.980 Right. 08:16.980 --> 08:20.070 And here you can actually see that I am able to get this. 08:20.070 --> 08:25.410 So these are some of the common errors like minimal common errors that you may be facing. 08:25.590 --> 08:29.430 Uh but we will deep dive more into different different operations. 08:29.430 --> 08:31.830 And one more thing that I really want to talk about. 08:32.040 --> 08:36.390 Uh, let's say if I want to define a string, right, let's say like, hello. 08:36.420 --> 08:39.150 Okay, now you'll be able to see string dot. 08:39.180 --> 08:41.280 There are so many different, different methods. 08:41.280 --> 08:41.820 Right. 08:41.820 --> 08:45.270 If I probably go ahead and see there are so many different, different methods. 08:45.270 --> 08:51.600 If I go ahead and see over here, see so many different different methods like is digit is uh, uh is 08:51.630 --> 08:55.740 alphanumeric is, uh, you know, case fold, center clear. 08:55.770 --> 08:57.990 Copy count difference, difference. 08:57.990 --> 08:58.470 Update. 08:58.470 --> 09:04.020 So we will also be seeing this kind of operations once we go ahead towards the advanced data type. 09:04.020 --> 09:08.250 Because see we need to understand all these methods because all these methods once you understand you 09:08.250 --> 09:12.450 will be able to understand it how you will be using in different different operations. 09:12.450 --> 09:16.620 But right now, since we are just discussing with the basics and we are just in the fourth tutorial, 09:16.650 --> 09:22.950 uh, I want to go a little bit slowly, uh, with definition, with examples, show you multiple things 09:22.950 --> 09:28.080 and make sure that you learn things in a way that it it matters a lot to you. 09:28.110 --> 09:28.590 Right? 09:28.590 --> 09:33.360 And again, as I said, uh, uh, be patience with respect to this. 09:33.360 --> 09:35.610 I know many people will be excited saying that. 09:35.610 --> 09:37.410 Hey, Krish, quickly complete fast. 09:37.410 --> 09:37.950 Right. 09:38.460 --> 09:42.090 But let me go a little bit slowly so that you will be able to understand things. 09:42.120 --> 09:42.600 Okay. 09:42.630 --> 09:45.780 So, uh, yes, this was it from my side. 09:45.780 --> 09:48.390 I hope you like this particular video. 09:48.570 --> 09:49.770 Um, yes. 09:49.770 --> 09:51.840 I will see you all in the next video. 09:51.840 --> 09:52.500 Thank you.