A test environment and open tools for use
1.1 java environmental issues
Environmental Monitoring java -version
strange troubleshooting
the SET path (Windows)
echo the PATH $ (mac / Linux)
1.2 java environment distinction
j2se standard version such as api jdk provided (no additional introduction)
the J2EE (Java2 Enterprise Edition) Enterprise Edition, such as the mybatis the Spring
J2ME Micro Edition, support for set-top boxes, mobile development, now the main android, ios alternative, but the android operating system language?
jdk: Java Developer's Kit Development Kit
jre: Java Runtime Environment abbreviation Runtime Environment (Minimum Operating Environment)
project to view the source code issue
1.3 Setting code hints
Alt+/(默认)
Content Assist
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