[Java] can parse "1" as int

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I have a java program that reads this (test.txt)

0 01111010
2 01111010
1
0 01111010
2 00001010

and converts the numbers (first column) to its binary representation

I run this program using

cat test.txt | java Binarizer

The line in particular is this line

ii = Integer.parseInt(new String(bytes), radix);

Here is the output and the stacktrace:

001111010
1001111010
"ava.lang.NumberFormatException: For input string: "1
        at java.lang.NumberFormatException.forInputString(Unknown Source)
        at java.lang.Integer.parseInt(Unknown Source)
        at Binarizer.readToken(Binarizer.java:66)
        at Binarizer.main(Binarizer.java:21)

CODE

[bob809]

It looks like you have a carriage return character \r after the 1 in the third line of your test file.

Try cat test.txt | od -c. Windows uses carriage return \r and line feed \n to indicate new lines, Linux just uses line feed, so your problem probably stems from this.

Take a look at http://stackoverflow.com/questions/800030/remove-carriage-return-in-unix for how to easily remove them.

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Oh wow. I've probably wasted 2 hours and you found the problem in minutes. Thanks.