https://www.eclipse.org/downloads/index-packages.php
Once you have downloaded is a compressed file, decompress and put to storage directory with the software, double-click to open the directory after extracting eclipse.exe (32bit recommended into the C: \ Program Files (x86), and 64bit on C: \ under Program Files, C drive personally feel really good software great place to stay, did not imagine the more loaded the card, only format the C drive is a new environment when reinstalling the system, slowly re-download software);
https://www.oracle.com/technetwork/java/javase/downloads/index.html
Right turn on jdk11.0.2, run as administrator
After selecting an installation path, click "Next." Remember that the installation path, you need to use when setting environment variables.
Open the "Control Panel" -> "System and Security" -> "System." Then click the left of the "Advanced System Settings" in the pop-up box, click the "Environment Variables"
Create a system variable JAVA_HOME. Jdk enter the installation path, e.g.: D: \ Program Files \ Java \ jdk-11.0.2
java jdk path eclipse the like are used JAVA_HOME software, to change the path so that when jdk only need to modify the value of the JAVA_HOME.
Found in the system variable Path variable, and click "Edit" in the pop-up box editing system variables, variable values in the pop-up box, add the final surface:
;%JAVA_HOME%\bin;
Open a command line with cmd, input javac, out of a list of command-line installation was successful.