Getting Java 5 to work

Can anyone help me. Im trying to use Java 1.5 on OS X

I recently downloaded and installed Java 5.0 for OS X from
http://www.apple.com/support/downloads/java2se50release1.html

I am trying to complie a .java file in Terminal using the javac
command. I keep getting the following error:

Shaun-Computer:~ Shaun$ javac /Users/Shaun/Desktop/IconicProgram.java
/Users/Shaun/Desktop/IconicProgram.java:1: cannot resolve symbol
symbol : class Scanner
location: package util
import java.util.Scanner;
^
/Users/Shaun/Desktop/IconicProgram.java:7: cannot resolve symbol
symbol : class Scanner
location: class IconicProgram
Scanner scan = new Scanner(System.in);
^
/Users/Shaun/Desktop/IconicProgram.java:7: cannot resolve symbol
symbol : class Scanner
location: class IconicProgram
Scanner scan = new Scanner(System.in);
^
3 errors

I tried going into the Java Prefrences that is
under/Applications/Utilities/Java/J2SE 5.0 and setting the version to
J2SE 5.0

I tried doing it in Xcode and it gives me the error:
"cannot resolve symbol : class scanner"

I also tried using the "java -version:1.5/5.0" command


Does anyone know how I can get it to work?

Thank you