package { import flash.display.MovieClip; public class Main extends flash.display.MovieClip { function Main() { var x:int; for(x=0;x<3;x++) { switch(String(x*x)) { case "0": trace("ok 1/5");break; case "1": try { trace("ok 2/5"); throw new Error(); } catch(e:Error) { trace("ok 3/5"); } case "4": trace("ok 4/5"); case "fallthrough": trace("ok 5/5"); } } } } }