WEBVTT 00:00.170 --> 00:00.710 Hi everyone. 00:00.710 --> 00:02.080 Welcome back to this tutorial. 00:02.090 --> 00:08.990 In this tutorial we will code and explore how to format and parse the local date time using date time 00:09.020 --> 00:09.860 parameter. 00:10.010 --> 00:16.190 For this purpose, what I'm going to do, I'm going to create a class called formatting. 00:18.360 --> 00:18.840 Local. 00:20.050 --> 00:21.400 Date time. 00:25.520 --> 00:28.880 Make this class executable by adding public static void main method. 00:30.770 --> 00:33.050 Now let's create two methods. 00:34.410 --> 00:35.040 For that. 00:35.990 --> 00:37.040 Presentation mode. 00:37.280 --> 00:40.850 Here the two methods are going to be static methods. 00:41.240 --> 00:42.740 Public static. 00:43.860 --> 00:49.350 Void pass local date time. 00:50.660 --> 00:52.730 And then the next method is going to be. 00:54.620 --> 00:55.140 Format. 00:55.190 --> 00:56.300 Local date and time. 00:57.500 --> 00:58.000 Thus. 01:00.200 --> 01:01.610 Going to be format. 01:02.910 --> 01:04.350 Local date and time. 01:05.350 --> 01:08.110 So now I'm going to create a string. 01:08.110 --> 01:10.930 So first thing is we are going to convert a string to a local date. 01:11.980 --> 01:13.300 So let's give it a name. 01:13.690 --> 01:16.210 Going to be 2018. 01:17.170 --> 01:18.130 Zero four. 01:19.530 --> 01:21.140 1880. 01:21.360 --> 01:27.440 We all know the local dating format by default puts this T in between the date and time. 01:27.450 --> 01:30.860 I'm going to have the time as 1433 and 33. 01:30.870 --> 01:33.360 So this is a local date time. 01:33.360 --> 01:35.100 We want to parse this. 01:35.100 --> 01:37.230 So this is a local date time string. 01:37.230 --> 01:41.100 We want to convert this to a local date time instance, right? 01:41.100 --> 01:42.630 So how do we do it? 01:42.840 --> 01:48.150 Let's use the local date time dot parse method and then parse this date time. 01:48.150 --> 01:51.210 So even the parse method has two different versions of it. 01:51.240 --> 01:56.010 One without the date time formatter and with the date time formatter, you go to this parse method, 01:56.040 --> 01:58.950 it uses the local date and time. 01:58.980 --> 02:01.050 We take a look at the local date and time. 02:01.050 --> 02:05.760 It uses the local date and local time which is separated by a key. 02:07.230 --> 02:12.150 So in here, let's see what is the output that it is going to give. 02:12.540 --> 02:16.650 So here we are trying to convert a string to a local date time instance. 02:17.070 --> 02:21.900 I'm going to print this in the console so that we can validate what is a value that gets mapped. 02:23.200 --> 02:25.360 Now I'm going to call these two methods. 02:25.830 --> 02:27.940 First one is going to be parse. 02:29.560 --> 02:33.310 Local date and time, and the next one is going to be format, local date and time. 02:34.120 --> 02:36.370 Want to run this example and check the result. 02:38.290 --> 02:39.520 We take a look at the result? 02:40.390 --> 02:43.870 Pass the string to a date time. 02:43.900 --> 02:48.880 Now what I'm going to do, I'm going to use the another version of the parse method. 02:49.390 --> 02:54.280 Local datetime dot parse, which takes in the string and the datetime formatter. 02:54.550 --> 02:57.400 So that's going to be the datetime again. 02:57.610 --> 03:00.880 Followed by that I'm going to use the datetime formatter. 03:01.420 --> 03:02.680 Not going to be the date. 03:02.680 --> 03:05.020 It's going to be local date time. 03:06.300 --> 03:06.600 Right. 03:06.600 --> 03:10.320 And then this is going to give us the local daytime as the output. 03:11.210 --> 03:12.220 I'm gonna give it a name. 03:12.240 --> 03:13.050 There you go. 03:14.770 --> 03:16.660 And let's print this and check the result. 03:20.750 --> 03:21.890 Take a look at the result. 03:24.310 --> 03:25.300 This and check the result. 03:27.160 --> 03:29.780 Though it gave the result as yet. 03:29.830 --> 03:34.420 Now we are going to play with the custom date time format. 03:36.800 --> 03:38.390 Going to be custom. 03:43.030 --> 03:43.570 Format. 03:43.600 --> 03:47.410 So in here, what I'm going to do, I'm going to create a string, right? 03:47.620 --> 03:47.920 String. 03:47.920 --> 03:49.270 And let's give it a name. 03:50.050 --> 03:51.040 Date time one. 03:51.830 --> 03:53.840 And then this is going to be. 03:56.420 --> 03:58.190 Similar kind, but. 03:59.440 --> 04:00.580 In the place of colon. 04:00.580 --> 04:02.140 I'm going to have pipe. 04:03.600 --> 04:03.930 Pipe. 04:05.830 --> 04:06.160 Pipe. 04:07.170 --> 04:14.670 So now we have to build our own datetime formatter instance because these are not these won't be available 04:14.670 --> 04:18.120 as part of the DateTime formatter as a predefined format. 04:18.150 --> 04:23.150 Now what we are going to do, we are going to create an instance within formatter. 04:23.160 --> 04:24.240 Let's give it a name. 04:24.690 --> 04:27.990 It's going to be datetime formatter dot of pattern. 04:27.990 --> 04:32.880 So the pattern is y y y y hyphen. 04:33.000 --> 04:37.560 The month we always represent in capital M followed by that date. 04:37.590 --> 04:42.300 We represent that in small D and going to be. 04:43.580 --> 04:50.060 A church which is in the 24 hour hour format and then followed by the let's give the pipe. 04:50.900 --> 04:51.110 More. 04:51.170 --> 04:52.250 Lemon And then. 04:52.280 --> 04:52.680 Yes. 04:53.870 --> 04:58.670 So this maps to the actual format that we have here. 04:58.700 --> 05:06.920 Now, what we will do, we will call local date time dot parse will parse the date time one, which 05:06.920 --> 05:08.120 is the new format. 05:08.120 --> 05:12.200 And then we use the date time formatter that we just created. 05:12.530 --> 05:15.680 So this is going to give you the local date time. 05:16.310 --> 05:17.240 Give it a name. 05:18.100 --> 05:18.400 Go. 05:18.850 --> 05:20.590 Let's print this and check the result. 05:23.080 --> 05:24.910 So daytime won in local. 05:24.910 --> 05:25.630 Daytime won. 05:25.780 --> 05:26.290 There you go. 05:26.320 --> 05:27.400 Let's run this. 05:29.260 --> 05:29.830 You run this? 05:29.860 --> 05:31.500 We ran into an issue. 05:31.510 --> 05:31.750 Okay. 05:31.750 --> 05:34.150 Let's take a look at the issue in here. 05:34.150 --> 05:39.010 We did not mention the T, That's mandatory, right? 05:39.010 --> 05:41.740 If you do not, then it is going to have some issues. 05:43.000 --> 05:44.320 Again, we have an issue. 05:45.490 --> 05:48.910 If you take a look at the line which is causing the issue, the line is 25. 05:48.940 --> 05:50.970 That is our new format. 05:50.980 --> 05:55.660 I believe we have to provide this in single quotes, otherwise it's going to cost. 05:57.530 --> 05:57.930 There you go. 05:57.950 --> 06:01.820 It was able to successfully format the string. 06:02.710 --> 06:09.880 Of our own format and it converted that to a local date using the datetime formatter that we just created. 06:10.030 --> 06:15.880 Keep in your mind, whenever you are working with a local datetime, this is really important. 06:15.880 --> 06:22.510 If you want to have the string to be successfully converted to a local date time. 06:22.540 --> 06:25.360 Now I'm going to have another string. 06:27.420 --> 06:31.860 And then in here, it's going to be day time to the place of tea. 06:31.890 --> 06:33.660 It is going to have A, B, C. 06:34.620 --> 06:36.450 In that case, will this work? 06:37.170 --> 06:38.010 Won't work. 06:38.040 --> 06:43.860 So in order to make this work, basically what we have to do, we have to provide ABC here. 06:44.070 --> 06:46.890 That's the only way to make it work. 06:46.890 --> 06:49.950 So we have this data formatter defined. 06:49.980 --> 06:56.370 Now what we will do create a local datetime instance, give it a name, and then I'm going to use the 06:56.370 --> 06:59.070 local datetime dot parse. 07:00.000 --> 07:04.890 When I use this and then pass the date time to followed by that. 07:04.890 --> 07:07.380 Let's pass the date time formatter. 07:07.960 --> 07:08.550 One. 07:10.880 --> 07:13.220 Then let's print this and check the result. 07:13.740 --> 07:14.320 We print this. 07:14.330 --> 07:17.360 It is going to give me the result that I'm looking for. 07:19.930 --> 07:21.730 Run this and check the result. 07:22.450 --> 07:23.050 There you go. 07:23.090 --> 07:28.810 Was able to successfully format and if you take a look at it, the local datetime will always have tea 07:28.810 --> 07:32.080 in between the date and time. 07:32.080 --> 07:33.610 So that's what it has here. 07:33.610 --> 07:40.900 Even though you have the string here as ABC, it will actually convert that to a appropriate local datetime 07:40.900 --> 07:42.820 instance when it gets converted. 07:42.820 --> 07:44.920 This will be replaced by tea. 07:45.100 --> 07:48.850 So this is all about parsing a local datetime. 07:48.850 --> 07:52.630 Now we will talk about how to convert a date to a string. 07:52.960 --> 07:54.280 So I'm going to use. 07:55.330 --> 07:57.430 Not date date time to a string. 07:57.530 --> 07:59.770 So I'm going to use a same formatter here. 07:59.770 --> 08:03.940 And then what I'm going to do, I'm going to create an instance of local date time. 08:05.510 --> 08:06.580 Want to give it a name? 08:07.400 --> 08:09.470 Going to be local date time. 08:10.380 --> 08:11.370 Not now. 08:12.950 --> 08:16.520 And then what we are going to do, we are going to use. 08:17.880 --> 08:21.430 I'm going to define a converted datetime. 08:22.050 --> 08:30.360 So in here I'm going to use the local datetime dot going to be the format and pass the formatter. 08:31.900 --> 08:37.480 No, it is going to give you the string back with ABC in it in the place of T, because when the local 08:37.480 --> 08:43.180 date time creates an instance, it's going to have a T by default and we are replacing that with ABC. 08:44.350 --> 08:46.090 So I'm going to copy this. 08:50.290 --> 08:51.580 Run this and check the result. 08:52.520 --> 08:54.670 And thus we take a look at it. 08:54.680 --> 09:01.160 It was able to successfully convert the local date time to the string format that we have defined here. 09:01.160 --> 09:03.770 And then in the place of colon is a default rate. 09:03.800 --> 09:09.080 We have pipe here was able to successfully convert that to a string. 09:09.200 --> 09:12.230 So this is my current machines time, which is zero eight. 09:12.230 --> 09:15.830 That's the reason why it is different from 1433 to this one. 09:16.760 --> 09:23.840 So this is all about converting a local datetime to a string and string to a local datetime using datetime 09:23.840 --> 09:24.570 parameter. 09:24.590 --> 09:26.510 But this we came to the end of this tutorial. 09:26.540 --> 09:27.410 Thank you for watching.