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hello and welcome into our second lecture today’s today we are going to install JDK fourteen point zero point one it is a very latest version of the JDK in last lecture we already discussed the basic of a Java in that we discussed that what is Java history of Java and the creators of Java who invent it and all those things we will we already discussed today we are going to install a JDK 14 so before start this installation we must know that what is JDK in this today’s lecture we will discuss that what is JDK then we also know that we also we also see in today’s lecture that what are the different components the JDK includes and then we are going to install the JDK 14 so now start what is JDK so we can say that the JDK forms an extended subset of a software development kit the delicate forms an extended subset of a software development kit that is is BK then what the JDK has JDK includes the tools for developing debugging and monitoring the Java applications the JDK has tools that we are used for developing debugging and monitoring the Java applications so to define this JDK we have two definitions we have first definition it is an technical definition we can say to define a JDK we have to say that the JDK is an implementation of Java platform specifications including compiler and class libraries ok the JDK is an implementation of Java platform specification including compiler and class libraries we have another definition we can say it has everyday definition they with the definition of a JDK is the JDK is a software package you download in order to create Java based application so to define the JDK we can say that the JDK is in a software package which is required to develop or to create Java based applications okay so then in the next slide we will see what are the major components the JDK has so the JDK has JVM that is Java Virtual Machine is the Java platform component that executes program to eight develops our Java programs we need this java virtual machine because of this java virtual machine it is possible to run a program written in any computer

can be executed without modification on any other computer okay the JVM is an important component the JDK includes the JRE means the Java Runtime environment is the on this part of Java that creates the Java Virtual Machine ok the Java Runtime environment is the on disk part of a java that creates the java virtual machine and then a jdk allows developers to create Java programs that can be executed and run by the java virtual machine and java runtime environment to elaborate or to explain our this concept that what is jdk and its components we have an image this is image this image is here in this image we can see that in the yellow part of this image java virtual machine is there java virtual machine has Java interpreter just-in-time compiler garbage collectors and thread synchronization in a blue part of this image we will see we can see there the j r e JRE means the java runtime environment java runtime environment has an class loader bytecode verifier java api and runtime libraries are present in the java runtime environment in the green part of this image we see the jdk jdk has an various tools or we can say that are the commands or tools JDK has java javac JDB appletviwer and so much tools are there so from this image we can say that the jdk is a bunch of different tools that are useful to develop debug or monitor our java applications so now we will going to install the JDK 14 JDK14 is an very latest Java development kit software so we will install this JDK 14 so if you like this video please share subscribe Java development kit 14 we have to start our browser then type this address HTTPS colon double slash https://www.oracle.com/java/technologies/javase-jdk14-downloads.html after writing this after writing this address on the address bar you will get this web page where you can see that Java is a development kit 14 downloads on this page we have to search for the package which is available for operating system you are using

Here I am using windows 64-bit so I am going to install this window x64 installer it has an 162 MB so I have to download on this link JDK 14 dot 0 dot1 so clicking on this exe file we will get these dialog box where we have to take this check box after clicking on this the link will be get activated to download so click on this download we will get this exe we have to save the file and the downloading is going on this will take the time depending on the your networks okay this completes our download so we have to click on this or you can click on the folder so you can open the containing folder I just click on this installation starts welcome to the installation wizard for Java SE development kit fourteen point zero point one so this is the setup program of Java development kit we have to click here on next here the installation directory it is showing you can change this directly if you want to and then press next installing the components for registration or registry updating coping the files it will take some time okay Java SE development kit fourteen point zero point one 64-bit successfully installed so this completes our installation of JDK JDK the Java development kit so we have to click on close after downloading JDK we have to check whether the installation is correct or not so we have to first check on the C Drive of our system we have to go at C drive in C drive we have to search Program Files Program Files in Program Files we have to search a Java folder or Java directory in a Java directory we found JDK 14 10.1 this installation we done it if you see such kind of folder after installation then Java is installed on your computer so we have to set the environment variable or system variable for running

the java applications so we have to click on this JDK folder then we found the bin bin directory bin directory we have to click on this directory and we have to copy this path that is path of JDK which we installed earlier on this computer so we have to copy this copy this path and we have to click on the this PC properties then we have to click on the advanced system settings after that we get the system property window and in this we have environmental environment variables we have to click in a system variables we have to find the paths we have to select the path click on and the edit button after clicking on the edit you will get the edit environment variable so we have to click on new here after clicking on new you have to paste the path that we copy and then press ok on this window we have to press ok on system property we also press ok and now we have to check whether the Java compiler or the JDK is completely installed or correctly installed or not so we have to go on the command line for that we have to press window key + R and we have to type here CMD + enter now we are at a command prompt so here we have to just type Java space dash version v e r s i o n version then we have to press Enter now here it shows the JDK version that present or that installed on that system here the version of the JDK is showing here installed jdk 14-point 0.1 version on this system so it will display the version of the Java so now we have to check for whether the Java compiler is running or not so we have to click we have to type the command Java C means Java compiler and we have to press ENTER if you found this response such a response from the command Java C then the Java compiler is okay or correctly installed on your system so this way we have to install the JDK 14 onto your computer

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