How to use assert about jdk1.4

Question

I write a Test java file to test the assert statement but fail to compile.
public class Test{
public static void main(String args[]){
int i = new Integer(args[0]).intValue();
assert true;
if(i%3==0){
System.out.println("good");
}else if(i%3==1){
System.out.println("better");
}else{
System.out.println("best");
What's the problem, and how to fix it?
Thanks!

Answer 1

you need to tell pass the compiler the -source 1.4 flag to get it
compile a class with assert.
see here
http://java.sun.com/j2se/1.4.1/docs/guide/lang/assert.html#compiling