You need to use a capturing group ( ) around what you want to capture.
To just match and capture what is between your curly brackets.
String s = "{one}{two}{three}";
Pattern p = Pattern.compile("\\{([^}]*)\\}");
Matcher m = p.matcher(s);
while (m.find()) {
System.out.println(m.group(1));
}
Output
one
two
three
If you want three specific match groups...
String s = "{one}{two}{three}";
Pattern p = Pattern.compile("\\{([^}]*)\\}\\{([^}]*)\\}\\{([^}]*)\\}");
Matcher m = p.matcher(s);
while (m.find()) {
System.out.println(m.group(1) + ", " + m.group(2) + ", " + m.group(3));
}
Output
one, two, three