need a regular expression for extracting strings.

[john sal]

I am not very familiar with the regular expression in java...

I want to get all the string tokens froma an expression eg.

from exression (abc+def)/abc then what will be the regular expression that returns only stings from the expression say

abc def abc ?

[Rob Spoor]

Have you already read the Javadoc page of java.util.regex.Pattern?

Basically the solution is pretty simple:

final String regex = ... // fill this in yourself ;)
Pattern pattern = Pattern.compile(regex);
Matcher matcher = pattern.matcher(input);
while (matcher.find())
{
    System.out.println(matcher.group());
}