Replace period with white space

I am trying to replace a period in a string with a white space. It does not want to work with a period but works just fine with a comma!

Please can somebody tell me what I am doing wrong.

This is the code that I am using:

System.out.println("Unicode:" +"\u002E");

CharSequence inputStr ="12.345,67";

String patternStr ="\u002E";

String replacementStr =" ";

//Compile regular expression

Pattern pattern = Pattern.compile(patternStr);

//Replace all occurrences of pattern in input

Matcher matcher = pattern.matcher(inputStr);

String output = matcher.replaceAll(replacementStr);

System.out.println("output:" + output);

[918 byte] By [leofoxa] at [2007-10-3 3:02:10]