Re: Strings: how to check for non-numeric chars..
On Sat, 10 Nov 2007 23:54:32 -0500, maya <maya778899@yahoo.com> wrote,
quoted or indirectly quoted someone who said :
String numChars[] = {"1","2","3","4","5","6","7","8","9"};
public boolean checkNonNum(String FileName) {
for (int i=0; i < numChars.length; i++) {
if (FileName.indexOf(numChars[i]) == -1) {
return false;
}
}
return false;
}
First you can simplify the test to:
char c = filename.charAt(i);
if ( '0' <= c && c <= '9' )
You can exit early if you find a numeric or if you find a non-numeric
with either true or false.
You can return either true or false if you fall out the bottom of the
loop.
With that you should be able to construct the combination you desire.
Note that FileName should start with a lower case f, and Sun always
spells filename with a lower case n.
see http://mindprod.com/jgloss/codingconventions.html
What gives? Don't they teach these? Newbies rarely seem to be aware
of them.
--
Roedy Green Canadian Mind Products
The Java Glossary
http://mindprod.com