2 replies to this topic

[SoiledShip]

I'm working on a USACO program and i have it working all except for this stupid NumberFormatException, the program is to calculate palindromic squares when given a base between 2 & 20. this is the line spitting the error

CODE

int i = ctr+1;
String str = Integer.toString(i);
int b = Integer.parseInt(str,base);

Will this not work? it throws the error when base!=10.

[Kraicheck]

If your base is lower than 10 how do you expect digits equal to or larger than your base number to be parsed correctly?
Example; with base = 2 any number containing 2,3,...,9 will rightfully throw an exception.

[SoiledShip]

i should have removed this, sorry. a friend of mine explained to me that Integer.parseInt() has a built in base conversion to goto base 10. but Integer.toString() has a built in base conversion to go from base 10 to what ever you want. i just had to switch parseInt() with toStirng(). thanks for the help anyway