WEBVTT 00:00.120 --> 00:00.720 Hi everyone. 00:00.720 --> 00:01.360 Welcome back. 00:01.360 --> 00:06.200 In this lecture we are going to be installing the latest version of Java in our machine. 00:06.200 --> 00:07.800 At the time of recording the lecture. 00:07.800 --> 00:11.880 The latest long term stable version is Java 25. 00:12.080 --> 00:13.240 So here is a GitHub repo. 00:13.280 --> 00:16.920 There are the steps to install Java 25 in your machine. 00:16.920 --> 00:20.120 I'll be attaching this link also as a resource in the lecture. 00:20.120 --> 00:22.800 So if you go a little bit down here we have two options. 00:22.800 --> 00:25.880 One is installing the Java using the installer. 00:25.920 --> 00:30.040 The next one is installing the Java using the SDK man. 00:30.200 --> 00:37.080 So here I have the link to the latest LTS version number one is the Java 25 over here. 00:37.080 --> 00:39.040 And number two is Java 21. 00:39.040 --> 00:43.000 And Java 25 is the latest version at the time of recording this lecture. 00:43.000 --> 00:45.600 So you are welcome to follow the steps over here. 00:45.600 --> 00:49.160 So in this case if we go here here we have the Linux version. 00:49.160 --> 00:51.600 And then we have the Mac OS version and the windows version. 00:51.600 --> 00:56.720 All you got to do is download the installable and then you basically go ahead and install it. 00:56.720 --> 01:02.380 But the option that I am going to be doing here is the Java installation using the SDK man. 01:02.420 --> 01:08.620 So the benefit of using Java SDK man is that it is very easy to manage multiple versions of Java in 01:08.620 --> 01:09.420 your machine. 01:09.460 --> 01:12.100 So let's go to this link and then see how it works. 01:12.100 --> 01:15.340 The very first thing is we need to install this SDK man. 01:15.380 --> 01:21.300 So if you go to the home page here this is basically the software development kit manager. 01:21.300 --> 01:23.540 That's what SDK man means. 01:24.060 --> 01:29.420 So here it says that your reliable companion for effortlessly managing multiple software development 01:29.420 --> 01:30.860 kits on Unix systems. 01:30.860 --> 01:35.500 Because when you work on different projects, you may need to switch between different versions because 01:35.500 --> 01:40.460 one of the project might be using the latest version, and some of the projects might still be in the 01:40.460 --> 01:43.660 migration mode, which means it might be in the older version. 01:43.660 --> 01:46.740 So that's when this SDK man comes in really handy. 01:46.940 --> 01:49.260 So now let's go back to the installation steps. 01:49.420 --> 01:53.420 So in here the very first thing is installing the SDK man okay. 01:53.460 --> 01:56.380 And the first thing is we need to run this particular command. 01:56.380 --> 01:59.270 If you're using windows we have two options here. 01:59.270 --> 02:05.950 Number one is that you can install the Windows Subsystem for Linux before attempting the SDK installation. 02:05.950 --> 02:12.070 Or if you have a git bash, you can basically use git bash to run these commands that I'm going to explain 02:12.070 --> 02:15.870 after you have these two solutions or one of the solution available. 02:15.870 --> 02:20.310 So it says that remember SDK man requires a bash environment to run on windows. 02:20.310 --> 02:22.030 It can't be natively installed. 02:22.270 --> 02:26.710 You need WSL or Msys plus min GW. 02:26.910 --> 02:28.630 We no longer support Cygwin. 02:28.630 --> 02:30.750 That's what they say okay let's go to the top. 02:30.870 --> 02:34.550 So and then I'm going to copy this command, go back here and then run this command. 02:34.550 --> 02:37.270 So you can see that it gave me this message immediately. 02:37.270 --> 02:40.790 This means I already have the SDK installed. 02:40.790 --> 02:43.950 So that's why I got this message already readily available. 02:43.950 --> 02:48.990 If you have not done this before, then it might take a little while to download the dependencies for 02:48.990 --> 02:49.230 you. 02:49.270 --> 02:52.350 Once that step is done, the next step is to run this one. 02:52.350 --> 02:57.070 Basically, this is going to source the SDK man initialized in your terminal. 02:57.070 --> 03:00.330 And then the next step is let's run this one SDK version. 03:00.370 --> 03:01.050 I run this one. 03:01.050 --> 03:04.330 So the version that I'm using at this point is this version. 03:04.330 --> 03:09.370 When you install, you might have a latest version being installed, but you need to see a message like 03:09.370 --> 03:09.690 this. 03:09.730 --> 03:10.250 Okay. 03:10.290 --> 03:15.250 So now let's go back to the browser and then let's go back to the Java installation tab. 03:15.250 --> 03:19.730 So first thing is we are going to be running the SDK list Java Java. 03:19.890 --> 03:22.290 It's going to list a bunch of versions over here. 03:22.290 --> 03:27.810 So these are the different vendors that provide different versions of Java available for us to choose 03:27.810 --> 03:28.250 and install. 03:28.250 --> 03:33.010 And if you go a little bit down, the one that I'm going to be using is the version which is an open 03:33.010 --> 03:33.650 source version. 03:33.650 --> 03:34.090 There you go. 03:34.130 --> 03:39.450 So in my machine I already have the Java 25 installed, but I will still show you the steps for how 03:39.450 --> 03:40.530 to install this one. 03:40.530 --> 03:44.890 And I also have the Java 21 and I also have the Java 17. 03:45.210 --> 03:50.570 I'll show you how we can switch between these versions very easily using the SDK man. 03:50.610 --> 03:53.090 Okay, so I have exited that list. 03:53.090 --> 03:57.460 The next step is go back to the page and then I'm going to be running this command. 03:57.460 --> 04:00.820 What I'm doing over here is that we did the SDK list Java. 04:00.820 --> 04:01.060 Right. 04:01.060 --> 04:03.860 And I'm going to be grep the string 25. 04:03.900 --> 04:06.820 When I do that it's going to give me from the result. 04:06.820 --> 04:09.460 What are all the different 25 versions available. 04:09.500 --> 04:10.380 So if we do this. 04:10.380 --> 04:14.100 So these are the different versions of Java 25 readily available. 04:14.100 --> 04:20.100 And these are the vendors we have Corretto, Graalvm Microsoft Oracle everyone have different versions. 04:20.100 --> 04:21.860 I'm going to be using the tamarin version. 04:21.900 --> 04:25.380 If you're wondering about what is a tamarin version let's go ahead and search for it. 04:27.660 --> 04:28.700 Tamarin JDK. 04:28.700 --> 04:30.700 So this is from the RTM one okay. 04:30.740 --> 04:36.860 And then if you click here what we do over there Adoptiom champions open source Java solutions empowering 04:36.860 --> 04:40.500 business with a cutting edge technology and collaborative innovation. 04:40.500 --> 04:43.020 So this is basically a project from adopt. 04:43.020 --> 04:49.460 OpenJDK was established in 2017, following years of discussions about the general lack of an open and 04:49.460 --> 04:52.980 reproducible build and test system for OpenJDK. 04:53.020 --> 04:54.780 So this is coming from the open JDK. 04:54.900 --> 04:57.120 That's why I prefer this particular vendor. 04:57.160 --> 05:00.400 Let's go back here and then I'm going to be running another command. 05:00.440 --> 05:03.080 Let's go back to the installation steps here. 05:03.080 --> 05:06.760 And then I'm going to be running SDK install Java 25. 05:07.080 --> 05:08.280 Let's run this over here. 05:08.320 --> 05:08.800 There you go. 05:08.840 --> 05:11.840 I already have 25 installed. 05:11.840 --> 05:13.320 That's why I get this message. 05:13.320 --> 05:17.800 If you're running it for the very first time, it will take a little while for the installation to complete. 05:17.840 --> 05:22.200 Okay, so now what I'm going to do is I'm going to be running Java version. 05:22.200 --> 05:23.120 So if we do it. 05:23.120 --> 05:26.960 So this is the version I have in my machine which is Java 25. 05:27.000 --> 05:32.560 Now if I go back to steps over here now let's say I want to switch to a different version. 05:32.600 --> 05:33.080 Okay. 05:33.120 --> 05:34.680 So now I want to switch to 21. 05:34.720 --> 05:35.520 How do I do it. 05:35.520 --> 05:39.480 So in this case I'm going to be copying this if I do a install. 05:39.520 --> 05:41.320 So it's just giving me this message. 05:41.320 --> 05:48.000 So in my machine for some reason the older ones that I have installed using SDK man it is actually having 05:48.000 --> 05:50.120 this particular text which is local. 05:50.120 --> 05:51.880 So these are the different versions I have. 05:51.920 --> 05:52.400 Right. 05:52.440 --> 05:55.850 So now let's say if I want to switch to Java 21. 05:55.850 --> 05:57.930 So what I need to use is that SDK. 05:57.970 --> 05:59.010 Use this one. 05:59.010 --> 06:03.290 So if I give this now this is going to be I believe the command is SDK. 06:03.330 --> 06:06.010 Use Java and then provide this one. 06:06.050 --> 06:06.570 There we go. 06:06.570 --> 06:09.490 Now we have use Java version in the shell. 06:09.490 --> 06:14.810 So now if we so if we do Java version it's going to give you the version as this one. 06:14.810 --> 06:17.530 Now let's say I want to switch back to Java 25. 06:17.570 --> 06:18.170 What do we do. 06:18.170 --> 06:21.570 So I'm going to do the same thing over here SDK this one. 06:21.570 --> 06:23.930 And then it's going to be 25. 06:24.210 --> 06:26.890 So now we have switched to Java 25 version. 06:26.890 --> 06:30.010 So in this case Java version we do this. 06:30.010 --> 06:33.010 This is going to give you the version as Java 25. 06:33.050 --> 06:36.930 This means that this particular shell is going to be using Java 25. 06:36.930 --> 06:42.370 So this is how much easy to switch between different versions when you're using SDK man. 06:42.410 --> 06:46.690 So this is my recommended way of managing Java versions in your local machine. 06:46.690 --> 06:52.170 So we have successfully installed the latest long term stable version which is Java 25. 06:52.330 --> 06:53.650 This marks the end of this lecture. 06:53.650 --> 06:54.450 Thank you for watching.