What is an effective way to parse strings in Java?

How should I use java to parse the following string to extract the file path?

？ Represents any number of random characters

_ Represents any number of spaces (no new lines)

?[LoadFile]_file_=_"foo/bar/baz.xml"?

Example:

10:52:21.212 [LoadFile] file = "foo/bar/baz.xml"

Foo / bar / Baz should be extracted xml

Solution

String regex = ".*\\[LoadFile\\]\\s+file\\s+=\\s+\"([^\"].+)\".*";

String regex = ".*\\[LoadFile\\]\\s+file\\s+=\\s+\"([^\"].+)\".*";

Matcher m = Pattern.compile(regex).matcher(inputString);
if (!m.find()) 
    System.out.println("No match found.");
else
    String result = m.group(1);

The string in the result should be your file path (assuming I didn't make any mistakes)

You should check the pattern class for some regular expression help They can be a very powerful string manipulation tool