WEBVTT 00:00.350 --> 00:00.860 Hi everyone. 00:00.860 --> 00:02.260 Welcome back to this tutorial. 00:02.270 --> 00:08.420 In this tutorial, we will code and explore the new DateTime libraries that got introduced as part of 00:08.420 --> 00:09.440 Java eight. 00:10.300 --> 00:18.070 The new date time libraries are local date, local time and local date and time, and these are available 00:18.070 --> 00:20.710 in the Java dot time package. 00:22.740 --> 00:29.070 These new classes are created with inspiration from the Joda Time External library. 00:30.430 --> 00:35.560 All these classes are immutable, which promotes the functional programming. 00:37.060 --> 00:43.390 There are many more supporting classes that are part of the Java runtime package, such as Instant duration 00:43.540 --> 00:45.440 period and et-cetera. 00:45.460 --> 00:49.720 We will be coding each and every one of it in the following tutorials. 00:52.640 --> 00:58.400 Prior to these time libraries, the most common date and time libraries that were part of Java are date 00:58.400 --> 00:59.360 and calendar. 00:59.390 --> 01:05.390 Both of these classes have many limitations and it is always confusing to choose between the two. 01:05.420 --> 01:08.660 I'm not going to focus on the limitations of these classes. 01:08.670 --> 01:15.820 Then came the external time Libraries like Joda time solved many problems which date and calendar had, 01:15.830 --> 01:20.450 but the Java date and calendar libraries were not great. 01:20.480 --> 01:25.760 That inspired the Java creators to come up with these excellent additions. 01:26.900 --> 01:33.410 Local data is used to represent the date and local time is used to represent the time and local date 01:33.460 --> 01:33.830 time. 01:33.830 --> 01:37.040 Class is used to represent the date and time. 01:37.040 --> 01:43.190 Let's go ahead and explore some of the code samples in this tutorial and we will explore more advanced 01:43.280 --> 01:46.760 date and calendar functionalities in the future tutorials. 01:47.660 --> 01:48.780 Want to go to the village. 01:48.850 --> 01:49.690 There you go. 01:49.720 --> 01:55.990 What I'm going to do the first thing, I'm going to create a package called dates. 01:56.900 --> 02:04.850 And then I'm going to create a class called New Date Time example. 02:07.380 --> 02:10.890 Let's make this class executable by adding public static void main method. 02:12.550 --> 02:14.140 Put this in presentation mode. 02:15.460 --> 02:19.240 So the first thing is I'm going to create the local date instance. 02:19.690 --> 02:20.770 And then. 02:21.980 --> 02:29.420 The local time instance and then the local date time instance. 02:29.750 --> 02:31.920 How do we create the local date instance? 02:31.940 --> 02:36.830 There is a handy factory method that is part of the local date class itself. 02:36.860 --> 02:37.430 We give the. 02:37.460 --> 02:40.220 Now there are three different overloaded versions. 02:40.220 --> 02:43.430 We'll be covering all those different versions in the future tutorials. 02:43.430 --> 02:44.870 But for now, let's. 02:46.200 --> 02:50.070 Although no method which doesn't take any input parameter. 02:51.090 --> 02:54.900 And then this is going to return you a local date instance. 02:57.490 --> 02:58.990 I'm gonna print it here. 02:59.940 --> 03:04.320 But this one is going to give you the current machines, local data. 03:04.470 --> 03:05.520 That's what it's going to do. 03:09.280 --> 03:11.110 Copy this and put it here. 03:14.770 --> 03:19.270 If you run this program, it is going to print this machine's local data. 03:19.600 --> 03:20.320 There you go. 03:20.560 --> 03:22.470 Go to the local date.now method. 03:22.840 --> 03:28.420 So it gives the system's default zone and then it is going to give you the current. 03:29.420 --> 03:29.750 It. 03:31.210 --> 03:32.620 Of this machine in here. 03:32.620 --> 03:38.260 If you take a look at the local date, local date implements a lot of other features like temporal. 03:38.290 --> 03:42.040 Temporal adjusters, Chrono, local date and serializable. 03:42.100 --> 03:47.010 We'll be focusing on all these different things in the future tutorials, but for now you need to know. 03:47.030 --> 03:49.540 Local date is a type of temporal. 03:51.580 --> 03:53.120 And then it printed the date here. 03:53.140 --> 03:55.540 Now we will explore the local time. 03:55.690 --> 03:57.580 The local time is again. 03:59.630 --> 04:05.320 Is going to it's going to be similar like the local date, but it is going to give you the time of this 04:05.320 --> 04:06.100 machine. 04:06.100 --> 04:10.990 So there is a handy method local time dot Now I'm going to call this method. 04:10.990 --> 04:15.520 This one is going to give you the current time of this machine. 04:16.640 --> 04:19.280 Then I'm going to put it here and put it here. 04:19.280 --> 04:20.810 Let's run this and check. 04:21.930 --> 04:22.710 You run this. 04:22.720 --> 04:23.280 There you go. 04:23.290 --> 04:26.080 It gave you the current time of this machine. 04:26.080 --> 04:31.360 Again, if you go to this now method, it is going to give you the system default zone. 04:31.720 --> 04:37.840 There are many different versions of overloading the zone to a totally different zone and getting that 04:37.840 --> 04:39.430 zone time actually. 04:39.440 --> 04:42.280 So we'll be covering all those different scenarios in the future. 04:42.280 --> 04:43.150 Tutorials. 04:43.240 --> 04:44.800 For now, you need to know this. 04:44.920 --> 04:48.250 The local date again is a type of temporal. 04:48.250 --> 04:54.100 It implements all these four interfaces and if you take a look at it, it implements a comparable local 04:54.100 --> 04:54.580 time. 04:56.640 --> 04:58.230 Next comes the local date. 04:58.260 --> 04:58.560 Time. 04:58.560 --> 04:59.250 Local date. 04:59.280 --> 05:01.530 Time is a combination of both, actually. 05:01.560 --> 05:04.080 So how can we get how can we do it? 05:04.200 --> 05:05.820 How can we create an instance of it? 05:05.970 --> 05:07.200 I'm going to give it a name. 05:07.200 --> 05:10.380 It's going to be local date time dot now. 05:12.130 --> 05:15.460 And then I'm going to copy this line and then put it here. 05:16.370 --> 05:19.580 Going to be local date time and local date time. 05:19.700 --> 05:20.510 We run this. 05:20.540 --> 05:24.890 It's going to give you the machine's date and time together. 05:25.070 --> 05:25.440 There you go. 05:25.460 --> 05:27.920 It gave you the time and date together. 05:29.140 --> 05:32.680 So this is all about the local date and time before we wind up. 05:32.680 --> 05:38.140 This one would like to go inside this class and explain about what are the different interfaces that 05:38.140 --> 05:45.370 it implements is again implementing the temporal temporal adjust adjuster and chrono local date and 05:45.370 --> 05:46.660 time and serializable. 05:47.140 --> 05:51.100 I'll be focusing on all these things in the future tutorials, but for now you need to know this. 05:53.080 --> 05:55.540 So this is all about the local date. 05:55.570 --> 05:59.050 Local time and local date time. 05:59.320 --> 06:02.380 Classes that got introduced as part of the Java eight. 06:02.890 --> 06:06.220 Let's focus on more advanced use cases in the future tutorials. 06:06.250 --> 06:08.230 With this we came to the end of this tutorial. 06:08.260 --> 06:09.430 Thank you for watching.