String text = "Hallo 100 World 77 gjgj";
System.out.println("Text: " + text);
java.util.regex.Pattern p = java.util.regex.Pattern.compile("\\d+");
System.out.println("Find: " + p.pattern());
for (java.util.regex.
Matcher m = p.matcher(text); m.find();) {
System.out.println("Found: " + m.group() + ", start: " + m.start() + ", end: " + m.end());
}
Text: Hallo 100 World 77 gjgj
Find: \d+
Found: 100, start: 6, end: 9
Found: 77, start: 16, end: 18