Java programming in Linux

To Http://www.sun.comDownload the installation package for./jdk-1_5_0-linux-i586-rpm.bin run./jdk-1_5_0-linux-i586-rpm.bin type Yes press enter to install.
After the execution, there will be a jdk-1_5_0-linux-i586-rpm file in the current directory, you can use the LS command to view. Then execute
Rpm-IVH jdk-1_5_0-linux-i586-rpm
In this way, JDK is installed in the/usr directory by default. The directory is/usr/Java/jdk1.5.0.
Add system environment variables and edit the/etc/profile file
VI/etc/profile
Add the following content at the end. Change the JDK path to your corresponding path.
Export java_home =/usr/Java/jdk1.5.0
Export classpath =.: $ java_home/lib/dt. jar: $ java_home/lib/tools. Jar
Export Path = $ java_home/bin: $ path:
Save and exit
Edit Java small ProgramFor example, hello. Java
Class Test
{
Public static void main (string [] ARGs)
{
System. Out. println ("Hello world! ");
}
}
# Javac hello. Java
# Java hello