vi /etc/profile
change JAVA_HOME to your JDK installation directory
restart your pc
btw, did you use the same user when install jdk and run "java -version"?
change JAVA_HOME to your JDK installation directory
restart your pc
btw, did you use the same user when install jdk and run "java -version"?
change JAVA_HOME to your JDK installation directoryvi /etc/profile
压根没有JAVA_HOME这一项。
来保证java路径一楼的叫人家重启有点过了吧;-)
export CLASSPATH=$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/lib
export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH:$HOMR/bin2.修改所有用户的环境变量# vi /etc/profile在该文件中加入:export JAVA_HOME=/usr/java/j2sdk1.4.2_04
export CLASSPATH=$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/lib
export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH:$HOMR/bin一定要在CLASSPATH路径中加入$CLASSPATH:之前我因为没有加入这个东东,在解释执行class文件时总是报错。现在来看看java是不是完全安装好了,编写一个最奸的java文件:HelloDate.java-----------------------------------------//HelloDate.java
import java.util.Date;public class HelloDate {
public static void main(String[] args) {
System.out.println("Hello, it's: ");
System.out.println(new Date());
}
}------------------------------------------在kunp用户下编译执行该文件:# su - kunp$ javac HelloDate.java
$ java HelloDate
Hello, it's:
Thu Jun 10 14:21:21 CST 2004 OK,Java环境搭建好啦。开始写你的java程序吧。