Here i am with another silly question

class HelloWorld
{
static Void main()
{
  Env.cur.out.print("Insert a number: ")    
  x := (Env.cur.in.readLine).toInt
  if (x < 0) echo ("Number is < 0")
  else if (x == 0) echo ("Number is 0")
  else echo("Number is > 0")
}
}

i won't use echo (coz it goes with newline) so i tried another way.. it's very strange (to me) that running this code the program hangs waiting for the input BEFORE writing the string "Insert a number"... then, when i put a number from the keyboard and press enter my strings appears one after the other, this way:

D:\fantom1063\bin>fan iftest.fan
-5
Insert a number: Number is < 0

why?

thx again.

Might to try flush:

Env.cur.out.print("...").flush

Ok, tk u. Why this behaviour?

Because your output is buffered in memory and not written to console until you either explicitly flush it or a call like printLine flushes it.