Hi, Andrei,
As I suspected, readLine() retains the newline character, and
parseInt() doesn't like it. You need to strip that newline
away.
Igor
Andrei Blackness <k7...@yahoo.com> wrote on 12/02/2009 11:17:30 AM:
> Thank you for your response Igor. I didnt realize it trunked my
> message. I will repost the code. I added it the x10 file as an
attachment too.
>
> public class Hello {
> public static def main(args:Rail[String]!){
> if(args.length>0){
> Console.OUT.println("The first arg is: "+args(0));
> }
> Console.OUT.println("Enter a number: ");
> val h = new Hello(); // final variable
> h.myMethod();
> }
> /** x10doc comment for myMethod */;
> public def myMethod(){
> try{
> val limit:String = Console.IN.readLine();
> Console.OUT.println("The read number is: "+limit);
> Console.OUT.println("The sum of the first "+limit+" numbers is:
");
> var s:int=0;
> val n:int = Int.parseInt(limit);
> for(var i:int=0;i<n;i++){
> s=s+i;
> }
> Console.OUT.println(s);
> }
> catch(e:IOException){}
> }
> }
>
> The version of the language is 2.0.
>
> The error message is
>
> The read number is: 10
>
> The sum of the first 10
> numbers is:
> java.lang.NumberFormatException: For input string: "10
> "
> at java.lang.NumberFormatException.forInputString(Unknown Source)
> at java.lang.Integer.parseInt(Unknown Source)
> at java.lang.Integer.parseInt(Unknown Source)
> at Hello.myMethod(Hello.java:130)
> at Hello.main(Hello.java:93)
> at Hello$Main$2.apply(Hello.java:52)
> at x10.runtime.Runtime$4.apply(Runtime.java:310)
> at x10.runtime.Activity.run(Activity.java:127)
> at x10.runtime.Runtime$25.apply(Runtime.java:1599)
> at x10.runtime.impl.java.Runtime.runAt(Runtime.java:101)
> at x10.runtime.Runtime.run(Runtime.java:1566)
> at x10.runtime.Worker.loop(Worker.java:302)
> at x10.runtime.Worker.apply(Worker.java:193)
> at x10.runtime.Pool.apply(Pool.java:207)
> at x10.runtime.Runtime.start(Runtime.java:317)
> at Hello$Main.main(Hello.java:35)
> at x10.runtime.impl.java.Runtime.run(Runtime.java:46)
> at java.lang.Thread.run(Unknown Source)
--
Igor Peshansky (note the spelling change!)
IBM T.J. Watson Research Center
XJ: No More Pain for XML's Gain (http://www.research.ibm.com/xj/)
X10: Parallel Productivity and Performance (http://x10.sf.net/)
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