Download the architecture-appropriate file above, save it somewhere, then run one of the following two commands to extract the package archive. How to Install JDK 8 (on Windows. Mac OS, Ubuntu) and Get Started with Java Programming. Java Development Kit (JDK), officially named "Java Platform Standard Edition (Java SE)", which is freely available from Sun Microsystems (now part of Oracle), is needed for writing Java programs. The mother site for JDK (Java SE) is http: //www. JDK" or "JRE"? JRE (Java Runtime) is needed for running Java programs. JDK (Java Development Kit), which includes JRE plus the development tools (such as compiler and debugger), is need for writing as well as running Java programs. In other words, JRE is a subset of JDK. Since you are supposed to write Java Programs, you should install JDK, which includes JRE. JDK Versions. The various JDK versions are: JDK Alpha and Beta (1. Sun announced Java in September 2. JDK 1. 0 (January 2. Originally called Oak (named after the oak tree outside James Gosling's office). Renamed to Java 1 in JDK 1. JDK 1. 1 (February 1. ![]() ![]() Download Skype for your desktop. Available for Windows, Mac, or Linux computers. Skype makes it easy to keep in touch with video calls, IM and more. OwnCloud is a great cloud syncing service. This ownCloud setup guide will show you how to setup ownCloud step-by-step. Whilst this ownCloud setup guide is. This page provides general information about notable Linux distributions in the form of a categorized list. Distributions are organized into sections by the major. Introduced AWT event model, inner class, Java. Bean, JDBC, and RMI. J2. SE 1. 2 (JDK 1. December 8, 1. 99. Re- branded as "Java 2" and renamed JDK to J2. SE (Java 2 Standard Edition). Also released J2. EE (Java 2 Enterprise Edition) and J2. ME (Java 2 Micro Edition). Included JFC (Java Foundation Classes - Swing, Accessibility API, Java 2. D, Pluggable Look and Feel and Drag and Drop). Introduced Collection Framework and JIT compiler. J2. SE 1. 3 (JDK 1. May 8, 2. 00. 0): Introduced Hotspot JVM. J2. SE 1. 4 (JDK 1. February 6, 2. 00. Introduced assert, non- blocking IO (nio), logging API, image IO, Java webstart, regular expression support. J2. SE 5. 0 (JDK 1. September 3. 0, 2. Officially called 5. Introduced generics, autoboxing/unboxing, annotation, enum, varargs, for- each loop, static import. Java SE 6 (JDK 1. December 1. 1, 2. Renamed J2. SE to Java SE (Java Standard Edition). Java SE 7 (JDK 1. July 2. 8, 2. 01. First version after Oracle purchased Sun (called Oracle JDK). Java SE 8 (JDK 1. March 1. 8, 2. 01. Lambda expressions, default and static methods in interfaces, improved collection, and Java. Script runtime. Java SE 9: Expected in July 2. How To Install JDK on Windows. Step 0: Un- Install Older Version(s) of JDK/JREI recommend that you install only the latest JDK. Although you can install multiple versions of JDK/JRE concurrently, it is messy. If you have previously installed older version(s) of JDK/JRE, un- install ALL of them. Goto "Control Panel" ⇒ "Programs" ⇒ "Programs and Features" ⇒ Un- install ALL programs begin with "Java", such as "Java SE Development Kit ..", "Java SE Runtime ..", "Java X Update ..", and etc. Step 1: Download JDKGoto Java SE download site @ http: //www. Under "Java Platform, Standard Edition" ⇒ "Java SE 8u{xx}", where {xx} is the latest update number ⇒ Click the "JDK Download" button. Look for the latest "Java SE Development Kit 8u{xx}" ⇒ Check "Accept License Agreement". Choose the JDK for your operating system, e. Windows x. 64" (for 6. Windows OS) or "Windows x. Windows OS). You can check whether your Windows OS is 3. Control Panel" ⇒ (Optional) System and Security ⇒ System ⇒ Under "System Type". Step 2: Install JDK and JRERun the downloaded installer (e. JDK and JRE. By default, the JDK will be installed in directory "C: \Program Files\Java\jdk. JRE in "C: \Program Files\Java\jre. Accept the defaults and follow the screen instructions to install JDK and JRE. Check the JDK installed directory by inspecting these folders using File Explorer. Take note of your JDK installed directory, in particular, the upgrade number, which you will need in the next step. I shall refer to the JDK installed directory as < JAVA_HOME> , hereafter, in this article. Step 3: Include JDK's "bin" Directory in the PATHWindows Shell searches the current directory and the directories listed in the PATHenvironment variable (system variable) for executable programs. JDK's programs (such as Java compiler javac. Java runtime java. JAVA_HOME> \bin" (where < JAVA_HOME> denotes the JDK installed directory). You need to include "< JAVA_HOME> \bin" in the PATH to run the JDK programs. To edit the PATH environment variable in Windows 7/8/1. Launch "Control Panel" ⇒ (Optional) System and Security ⇒ System ⇒ Click "Advanced system settings" on the left pane. Switch to "Advanced" tab ⇒ Push "Environment Variables" button. Under "System Variables" (the bottom pane), scroll down to select "Path" ⇒ Click "Edit..". For Windows 1. 0 (newer releases): You shall see a TABLE listing all the existing PATH entries (if not, goto next step). Click "New" ⇒ Enter the JDK's binary directory "c: \Program Files\Java\jdk. Replace xx with your installation number!!!) ⇒ Select "Move Up" to move this entry all the way to the TOP. Prior to Windows 1. CAUTION: Read this paragraph 3 times before doing this step! Don't push "Apply" or "OK" until you are 1. There is no UNDO!!!)(To be SAFE, copy the content of the "Variable value" to Notepad before changing it!!!)In "Variable value" field, INSERT "c: \Program Files\Java\jdk. Replace xx with your installation number!!!)IN FRONT of all the existing directories, followed by a semi- colon (; ) which separates the JDK's binary directory from the rest of the existing directories. DO NOT DELETE any existing entries; otherwise, some existing applications may not run. Variable name : PATH. Variable value : c: \Program Files\Java\jdk. My Notes: Starting from JDK 1. Program. Data\Oracle\Java\javapath" and added to the PATH. It contains only JRE executables (java. NOT the JDK executables (e. Step 4: Verify the JDK Installation. Launch a CMD shell via one of the following means: Click "Search" button ⇒ Enter "cmd" ⇒ Choose "Command Prompt", orright- click "Start" button ⇒ run.. Prior to Windows 1. Start" button ⇒ All Programs ⇒ Accessories (or Windows System) ⇒ Command Prompt, or(Windows 1. Start" button ⇒ Windows System ⇒ Command Prompt. Issue the following commands to verify your JDK installation: Issue "path" command to list the contents of the PATH environment variable. Check to make sure that your < JAVA_HOME> \bin is listed in the PATH. Don't type prompt> , which denotes the command prompt!!! Key in the command (highlighted) only. PATH=c: \Program Files\Java\jdk. Issue the following commands to verify that JDK/JRE are properly installed and display their version. Java(TM) SE Runtime Environment (build 1. Java Hot. Spot(TM) 6. Bit Server VM (build 2. Step 5: Write a Hello- World Java Program. Create a directory to keep your works, e. Project", or "c: \my. Project", or any directory of your choice. Do NOT save your works in "Desktop" or "Documents" as they are hard to locate. The directory name shall not contain blank or special characters. Use meaningful but short name as it is easier to type. Launch a programming text editor (such as Text. Pad, or Note. Pad++, or Sublime Text, or Atom). Begin with a new file and enter the following source code. Save the file as "Hello. Project). public class Hello {. String[] args) {. System. out. println("Hello, world!"). Step 6: Compile and Run the Hello- World Java Program. To compile the source code "Hello. Start a CMD Shell (Click the "Start" button ⇒ "run.." ⇒ Enter "cmd"). Set the Current Drive to the drive where you saved your source file "Hello. For example, suppose that your source file is saved in drive "d", enter "d: " as follow. Don't enter prompt> , which denotes the command prompt. Set the Current Working Directory to the directory that you saved your source file via the cd (Change Directory) command. For example, suppose that your source file is saved in directory "d: \my. Project". D: \xxx> cd \my. Project. D: \my. Project> Issue a dir (List Directory) command to confirm that your source file is present in the current directory. D: \my. Project> dir. PM 2. 77 Hello. Invoke the JDK compiler "javac" to compile the source code "Hello. D: \my. Project> javac Hello. The compilation is successful if the command prompt returns. Otherwise, error messages would be shown. Correct the errors in your source file and re- compile. Check "Common JDK Installation Errors", if you encounter problem compiling your program. The output of the compilation is a Java class called "Hello. Issue a dir (List Directory) command again to check for the output. D: \my. Project> dir. PM 4. 16 Hello. PM 2. 77 Hello. To run the program, invoke the Java Runtime "java". D: \my. Project> java Hello. Hello, world! Everything that can possibly go wrong will go wrong: Read "JDK Installation Common Errors".
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