Java Learning Fourth--java The understanding of environment Java_home and Classpath

1.java_home

environment variable JDK directory used to locate JDK's Bin directory facilitates version changes

Eg: after the value of path is added;%java_home%\bin

Create an environment variable Java_home D:\Program files\java\jdk1.8.0_101

2. Classpath

It is used to locate and set the search location of the class file or storage location is generally not required configuration and careful configuration

Its configuration has a sequential relationship

Eg:classpath.;D: \ Develop retrieve the current directory and retrieve D:\Develop first

Classpath D:\Develop;. Retrieve the D:\Develop and retrieve the current directory first

Java Learning Fourth--java The understanding of environment Java_home and Classpath