Java EE Development Environment (i) JDK

Method/Step

1. Install JDK two installation prompts will appear during installation of the installation directory. The first time is to install the JDK, and the second is to install the JRE. It is recommended that all two are installed in a different folder in the same Java folder. (cannot be installed in the Java folder root directory, JDK and JRE installed in the same folder will be error)

As shown

2.

(1) Install JDK Optional directory simply change the default installation directory \java the directory before

(2) Install jre→ change →\java before directory and install JDK directory is the same

Note: If no installation directory is required, all default settings are available. No need to make any changes, two times directly point to the next step.

3. Configure environment variables after installation of JDK computer → properties → advanced system settings → advanced → environment variables

4, system variable → new java_home variable.

Variable value fill in the JDK installation directory (e.g. E:\Java\jdk1.7.0)

5. System variable → find Path variable → edit

Enter%java_home%\bin;%java_home%\jre\bin at the end of the variable value ;

(Note that the original path has no value at the end of the variable ; Number, if not, enter it first, and then enter the code above)

6. System variables → new CLASSPATH variable

Variable values are filled in .; %java_home%\lib;%java_home%\lib\tools.jar(Note that there is a point in the front)

System Variable Configuration complete

7, check whether the configuration is successfully run cmd input java-version (there are spaces between Java and-version)

If the version information is displayed, the installation and configuration are successful.

Successful installation and configuration of the JDK

Java EE Development Environment (i) JDK