WEBVTT 00:00.960 --> 00:01.560 Hi everyone. 00:01.560 --> 00:02.790 Welcome back to this tutorial. 00:02.790 --> 00:08.010 In this tutorial we will code and learn the next class, which is the local time. 00:08.370 --> 00:11.250 What I'm going to do is I'm going to create a class. 00:12.350 --> 00:14.330 Paul local time example. 00:16.110 --> 00:18.900 Local time example. 00:19.200 --> 00:25.170 And then I'm going to make this class executable by adding public static void main method. 00:25.830 --> 00:26.580 There you go. 00:27.360 --> 00:28.980 We put this in presentation mode. 00:29.670 --> 00:38.190 Now we will create the instance of local time, which is going to give you this machine's current time. 00:39.200 --> 00:41.060 Local time. 00:42.600 --> 00:47.280 I'm going to use a known method which we have seen in the previous tutorial and one of the previous 00:47.280 --> 00:48.360 tutorial actually. 00:48.990 --> 00:53.670 And then this is going to give you an instance of local time. 00:53.850 --> 00:58.680 I'm going to create the local time and give it a name. 01:00.170 --> 01:00.680 There you go. 01:01.130 --> 01:03.890 Let's print this and check what is the time it is printing. 01:07.140 --> 01:07.980 Local time. 01:10.410 --> 01:11.410 And local time. 01:11.430 --> 01:13.050 Let's run this and check the result. 01:16.270 --> 01:17.180 We take a look at it. 01:17.200 --> 01:25.480 This gives me the current machines time, which is 447 and 39 seconds, followed by the nanosecond precision. 01:25.960 --> 01:31.750 Now let's take a look at what are the different options that are available in order to create a local 01:31.750 --> 01:32.920 time instance. 01:34.670 --> 01:36.590 Local time dot. 01:36.620 --> 01:40.230 If I give Dot, these are the different options that I have. 01:40.250 --> 01:44.330 I'm going to use the off version of it. 01:44.510 --> 01:51.980 If you take a look at the off there are on minute and the other version is hour, minute and second, 01:51.980 --> 01:56.630 and the other version is hour, minute, second and nanosecond precision. 01:56.630 --> 02:01.580 And the other option is of nano of day of second of day. 02:01.580 --> 02:07.250 Basically, we will we'll pass the nanosecond of the day and will pass the second of the day, which 02:07.250 --> 02:09.710 will give you the appropriate local time. 02:10.460 --> 02:16.280 As a result, we're going to explore these three options now because these are the most common commonly 02:16.280 --> 02:18.410 used methods. 02:18.410 --> 02:25.700 In order to create a local time instance, I'm going to pass the value as 2333. 02:27.230 --> 02:28.070 Local time. 02:29.090 --> 02:29.630 Local time. 02:29.630 --> 02:30.020 One. 02:31.270 --> 02:33.280 Wanna copy this and put it here. 02:35.100 --> 02:38.400 Let's print the local time one. 02:40.100 --> 02:47.170 But on this program, this is going to give me the time instance which we used here of method. 02:47.350 --> 02:52.210 So here, if we take a look at it, the time it printed is 23 and 33. 02:52.210 --> 02:56.010 It did not print the second and nanosecond precision. 02:56.020 --> 02:58.000 Now let's use the other version. 03:00.900 --> 03:05.610 I'm going to give it a name and I'm going to pass the second. 03:08.470 --> 03:10.600 And let's print this and check the result. 03:13.260 --> 03:15.420 Going to be local time too. 03:15.630 --> 03:17.010 And local time, too. 03:17.250 --> 03:20.220 Let's run this and check what is the result. 03:21.730 --> 03:27.230 If you take a look at it, the result is 23, 33, and the second position is also printed. 03:27.250 --> 03:31.240 If you pass a nanosecond, it is going to give you the nanosecond position too. 03:31.420 --> 03:32.950 I'm going to just put it here. 03:34.520 --> 03:40.430 Local time three since it's a nanosecond, I'm going to give the values. 03:43.660 --> 03:44.620 And then. 03:45.600 --> 03:49.620 Put it here so that it will be clear for the whole and the whole screen. 03:49.620 --> 03:54.870 It will fit the whole screen so that you will be able to view it then. 03:56.060 --> 03:56.870 Right here. 03:57.280 --> 03:59.000 Going to be local time three. 04:00.920 --> 04:02.420 And then I'm going to run this. 04:03.870 --> 04:04.900 Run this example. 04:04.920 --> 04:05.540 There you go. 04:05.550 --> 04:10.410 It gives you the nanosecond value of the time. 04:10.860 --> 04:17.280 Now, these are the different options that we have in order to create the local time instance. 04:17.310 --> 04:26.070 Now let's explore how can we get the hour, minute or second and many other parameters from the time 04:26.070 --> 04:27.450 instance that we created here. 04:27.450 --> 04:33.840 I'm going to use the local time as an example, and then I'm going to get the hour minute and the second 04:33.840 --> 04:34.410 from it. 04:34.590 --> 04:35.880 How do we get it? 04:36.450 --> 04:38.910 I'm going to give a simple code comment here. 04:39.690 --> 04:40.620 I'm going to be. 04:41.710 --> 04:43.390 Getting the values. 04:45.180 --> 04:45.750 From. 04:47.510 --> 04:50.120 Local time instance. 04:51.750 --> 04:54.000 So I'm going to use a local time. 04:54.360 --> 04:58.650 I'm going to press dot and then see what are the methods that it supports. 04:58.650 --> 05:01.530 It has a lot of methods, actually. 05:01.530 --> 05:07.260 Now let's explore some of the methods to get the value from the local time instance. 05:07.380 --> 05:13.620 As soon as I type in the get, it gives me the option of get second get or get long get minute and get 05:13.650 --> 05:14.040 nano. 05:14.820 --> 05:21.210 Let's say I want to I want to see what is the hour that this particular local time instance has. 05:21.480 --> 05:25.770 So in that case we'll use the get method. 05:27.980 --> 05:34.760 And then using this, we'll print the R of this local time instance. 05:35.590 --> 05:37.060 Let's run this and check the result. 05:40.010 --> 05:40.670 Take a look at it. 05:40.670 --> 05:45.290 The r value it gave us for that's what. 05:46.150 --> 05:50.380 That is what is the current local times current machines local time. 05:50.410 --> 05:52.690 Now what we'll do we will see. 05:53.110 --> 05:54.400 What is a minute? 05:54.580 --> 05:55.150 Right. 05:55.150 --> 05:57.670 I'm going to use the get minute field. 05:57.670 --> 05:58.960 This is going to return me. 05:58.990 --> 06:02.200 What is a minute of the local time instance? 06:04.220 --> 06:05.150 Put it here. 06:05.390 --> 06:07.280 Let's run this and check the result. 06:09.520 --> 06:10.480 You run this. 06:11.020 --> 06:15.580 It gave the result as 52, which is the machine's current minute. 06:16.450 --> 06:17.140 No. 06:18.500 --> 06:20.000 There are a lot of other methods, right? 06:20.030 --> 06:26.690 Local time dot as you type in the get it is going to give you the option to get the second and it is 06:26.690 --> 06:28.590 going to give you the option to get the Nano. 06:28.610 --> 06:32.920 Now if you take a look at the get method, it accepts something called temporal field. 06:32.930 --> 06:36.890 If you remember from the previous tutorial, we have seen one of the previous tutorial. 06:36.890 --> 06:42.530 We have seen something called the Chrono Field where you can pass the field and then get the actual 06:42.530 --> 06:44.040 value from that local time. 06:44.060 --> 06:48.380 This is one other option basically, but it is going to give you the same result. 06:48.380 --> 06:49.100 Actually. 06:49.250 --> 06:51.050 Let's go ahead and explore this option to. 06:52.080 --> 06:55.320 And then it's going to be Chrono Field. 06:56.440 --> 06:57.100 Dot. 06:58.060 --> 07:02.020 Let's say you want to clock out of the day, you cannot get a day of the month from a time instance. 07:02.020 --> 07:04.510 It's going to give you that unsupported type exception. 07:04.510 --> 07:11.200 So you should pass only the fields that are actually related to the time instance. 07:11.200 --> 07:13.570 So I'm going to give the clock hour of the day. 07:16.160 --> 07:17.840 Run this and check the result. 07:20.680 --> 07:21.430 But here. 07:26.040 --> 07:29.130 And then I'll copy this and put it inside. 07:30.090 --> 07:30.960 There we go. 07:31.350 --> 07:31.800 Run this. 07:31.800 --> 07:38.520 It is going to give me the clock of the day from the actual local time instance. 07:38.520 --> 07:45.210 And the value is for this result is similar to this result, but it is just another alternative to get 07:45.210 --> 07:48.230 the R from the time instance. 07:48.240 --> 07:52.320 Let's say you want to represent this whole time in seconds. 07:52.350 --> 07:54.330 There is an handy option for that one too. 07:54.780 --> 08:01.710 So the method that you have to call is to two seconds to second of day. 08:01.740 --> 08:06.060 Basically, this is this will represent the current time in seconds. 08:08.060 --> 08:09.400 Go ahead and run this example. 08:09.410 --> 08:17.270 So two seconds is going to give you it's going to represent the time in seconds. 08:20.390 --> 08:21.260 Run this. 08:22.210 --> 08:26.560 And the value is 17,006 85. 08:27.930 --> 08:33.540 Now we have seen the different we have seen different options of getting the values from the local time 08:33.540 --> 08:34.150 instance. 08:34.170 --> 08:39.120 Let's go ahead and check how do we modify the time once it is created? 08:39.120 --> 08:41.400 Right now the time is four 5445. 08:41.400 --> 08:41.910 Right. 08:41.940 --> 08:43.740 How can we modify those times? 08:43.890 --> 08:51.090 There are handy options or handy methods that are available in order to modify the value of the local 08:51.090 --> 08:51.600 time. 08:52.530 --> 08:56.700 Modify values of local time. 08:59.790 --> 09:05.040 So if you remember from the local data instance, we are going to use similar kind of methods. 09:05.040 --> 09:09.690 So I would highly recommend you guys to explore all the methods in this local time instance. 09:09.690 --> 09:14.280 But I'm going to give you I'm going to give you the exposure to a few of the methods at this moment, 09:14.280 --> 09:20.100 but please go ahead and run all the different methods that are available so that it will give you the 09:20.100 --> 09:25.500 clarity of how which method to choose on what kind of use case that you are. 09:26.330 --> 09:28.580 Using in your application. 09:28.760 --> 09:32.960 So it's going to be local time, dot minus. 09:32.960 --> 09:35.150 I'm going to subtract the hours by two. 09:36.080 --> 09:41.370 So in that case I can give like minus hours and then pass the long value. 09:41.390 --> 09:49.010 This is going to subtract the hours by two, and the result that it is going to print is something which 09:49.010 --> 09:50.570 we are going to take a look at it now. 09:52.090 --> 09:53.760 Going to be minus hours. 09:57.900 --> 10:00.300 And I'm going to run this example. 10:01.470 --> 10:05.130 Let's check the result and the time is subtracted. 10:05.130 --> 10:11.670 So if you take a look at the current time, the current time is 456 and we subtracted the hours to 256 10:11.670 --> 10:13.740 and again, local time is immutable. 10:13.740 --> 10:16.830 It doesn't change the actual time of that instance. 10:17.040 --> 10:19.110 Now let's say you want to see. 10:20.850 --> 10:24.900 You want to perform the same minus using another alternative approach. 10:24.930 --> 10:28.560 There is a handy way if we give minus. 10:28.590 --> 10:29.250 There you go. 10:29.620 --> 10:33.840 We're going to use this same approach which we have covered in the local date. 10:33.870 --> 10:36.510 There is a similar option which is available in local time too. 10:36.510 --> 10:40.110 So minus long amount to subtract. 10:40.110 --> 10:41.640 And then the temporal unit. 10:41.850 --> 10:42.470 Right. 10:42.480 --> 10:44.370 Let's select that in here. 10:44.370 --> 10:53.820 I want to subtract the hours by two hours and then the unit something which is called Chrono Unit Dot. 10:54.770 --> 10:57.890 Let me put this below so that it will be visible to the. 10:59.600 --> 11:02.530 Students Pronoun unit Dart ahs. 11:05.270 --> 11:08.600 Okay, I'm going to copy this and put it here. 11:09.470 --> 11:12.710 So we are subtracting the hours by two. 11:15.560 --> 11:16.370 There you go. 11:16.550 --> 11:19.280 Give the value as two 5738. 11:19.430 --> 11:20.720 Again, it's all immutable. 11:20.720 --> 11:25.310 It is not going to change the state of the local time instance now. 11:26.400 --> 11:29.610 The Czechs were one of the wet method. 11:31.780 --> 11:36.280 The white matter is something which we explored in the local date video. 11:36.580 --> 11:43.810 Again, we have the similar kind of methods available in local time with and then I'm going to use the. 11:45.700 --> 11:50.260 Local time instance with local time dot. 11:50.770 --> 11:51.610 We take a look at it. 11:51.610 --> 11:57.120 You can give if you want to make this time to be the midnight time, then you can just give this. 11:57.130 --> 12:01.540 So what this is going to do, this is going to change the time to the midnight. 12:04.960 --> 12:05.470 Night. 12:06.100 --> 12:10.900 I'm going to run this example and this is going to give you the time set. 12:10.900 --> 12:12.520 The time as midnight. 12:14.230 --> 12:16.330 Let's say using the width itself. 12:16.360 --> 12:19.240 You want to change the hour of the day? 12:19.960 --> 12:20.620 How do we do it? 12:20.830 --> 12:24.580 So then in that case, we are going to use the two parameter width option. 12:24.610 --> 12:28.330 Let's type in the width and then check if we type in the width. 12:29.250 --> 12:30.360 So there are. 12:30.810 --> 12:32.720 So we just saw this option. 12:32.730 --> 12:38.130 Now we are going to take a look at this option with which takes in the temporal field, followed by 12:38.130 --> 12:39.030 that value. 12:39.330 --> 12:44.490 So we should always, since we are working with the time instance, we should always pass the field 12:44.490 --> 12:49.920 which is of type time, the Chrono Field dot or of day. 12:49.920 --> 12:51.360 I'm going to use the hour of day. 12:51.720 --> 12:54.660 And if you take a look at it, there are a lot of different options. 12:54.660 --> 13:01.080 I would highly recommend you to go through each and every one of it and use the fields that map to the 13:01.080 --> 13:04.020 local time instance, not the date instance. 13:04.050 --> 13:07.440 If we give date, you're going to get something like unsupported type. 13:07.740 --> 13:13.380 So I'm going to use the clock hour or the clock or the hour of day, right? 13:14.280 --> 13:15.260 Hour of day. 13:15.270 --> 13:18.060 And I'm going to set the value as 22. 13:21.720 --> 13:24.140 Gonna run this example and check the result. 13:24.690 --> 13:25.490 We check the result. 13:25.490 --> 13:28.550 It is going to change a time to 22 hours. 13:28.820 --> 13:35.210 So if you take a look at it, it change a time from 459 to 2259. 13:35.540 --> 13:39.350 Now if you want to add some minutes, how do we do it? 13:39.530 --> 13:40.340 Right? 13:42.980 --> 13:44.030 Now, copy this. 13:44.180 --> 13:46.040 Local time, Dot. 13:47.060 --> 13:47.390 Diamond. 13:47.390 --> 13:50.990 Plus, it gives you the all of the different options plus minutes. 13:50.990 --> 13:53.270 And then I'm going to give the value as to. 13:53.390 --> 13:57.110 I'm adding the minutes by to let's go ahead and check the result. 13:57.110 --> 14:02.090 Otherwise I'm going to add the minutes as 30 so that it will be a big difference so that you can easily 14:02.090 --> 14:04.490 compare with the current time. 14:07.790 --> 14:13.400 So if you take a look at the result, the current time is five and the plus minutes, which change at 14:13.400 --> 14:16.100 minutes from zero 0 to 513. 14:16.760 --> 14:26.360 So this is how you add minutes to the local time so you can add our time, our second nanosecond and 14:26.360 --> 14:27.140 all those things. 14:27.170 --> 14:30.860 Now what I'm going to do, I'm going to use the with our method. 14:32.050 --> 14:34.240 The change are of the time. 14:35.020 --> 14:35.890 How do we do it? 14:38.640 --> 14:44.130 The local time dart with R, so it has those methods. 14:44.130 --> 14:50.460 You can directly parse the value and change the hour, minute, nanosecond and second. 14:50.490 --> 14:56.490 So this is again an alternative, but ultimately it is going to give you the same result with R, I'm 14:56.490 --> 14:59.220 going to change the R to ten. 15:00.690 --> 15:03.510 But let's run this example and check the result. 15:05.380 --> 15:06.520 We take a look at it. 15:06.550 --> 15:09.430 It changes a time from zero 5 to 10. 15:10.220 --> 15:12.390 So there are a lot of additional methods. 15:12.410 --> 15:13.280 What are we covered in? 15:13.280 --> 15:16.640 Local date also is supported in local time. 15:16.640 --> 15:22.580 Basically the equal is after, is before and is leap year and all those things. 15:22.580 --> 15:27.230 But leap year doesn't apply here because that's related to the date kind of functionality. 15:27.440 --> 15:31.460 So this is all about the local time instance. 15:31.460 --> 15:33.590 With this, we came to the end of this tutorial. 15:33.620 --> 15:34.790 Thank you for watching.