Writing and compiling Java program on linux
You need,
1. Java SE Development Kit 4 for linux version
2. A Text editor such as Pico, vi or emacs (all 3 are built in linux)
Now write a program using Pico, vi or emacs, let say you have given name as
HelloWorldApp.javaclass HelloWorldApp {
public static void main(String[] args) {
System.out.println("Hello World!");
}
}
(after installation java. environment variable will automatically register) you can verify these environmental variables by
env or
echoJAVA_HOME=/usr/java/j2se
JAVA_FONTS=/usr/share/fonts/truetype
ANT_HOME=/usr/share/ant
Now compile using javac program,
javac HelloWorldApp.java
After running above program a file will be generated HelloWorldApp.class
Always remember both javac, and java are case sensitive, so HelloworldApp.java is not equal to helloworldapp.java.
Now simply run the program using java
java HelloWorldApp
The end...
