Getting Started with Java 1day

Java installation and environment variable configuration

1. Installation

2. Environment variable Configuration

1) Right-click Computer--Properties (R)--Advanced system settings--advanced--environment variables

2) System variables (or user variables)--New
Variable name: java_home
Variable Value: C:\Program files\java\jdk1.6.0_21 (choose Java installation Address, folder named ' jdk***** ')
3) Select the "Path" variable
First, when you need to add a new variable value to the value of the variable, you need to first add ";" No.
Variable Value:
C:\Program Files\java\jdk1.6.0_21\bin;
C:\Program Files\java\jdk1.6.0_21\jre\bin
4) System Variables--New
Variable name: Class_path
Variable value:.; C:\Program Files\java\jdk1.6.0_21\lib\dt.jar;
C:\Program Files\java\jdk1.6.0_21\lib\tools.jar
"." Represents the current path
".." The delegate returns to the last directory
5) Verification
java Command-->javac command-->java-version

Getting Started with Java 1day