import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
class Ideone
{
{
String regex
= "[/_](\\d{1,2}[.]\\d{1,2}[.]\\d{1,2})(?=/)"; String string
= "name_1.1.1/9.10.0/abc";
Pattern pattern = Pattern.compile(regex);
Matcher matcher = pattern.matcher(string);
while (matcher.find()) {
System.
out.
println(matcher.
group(1)); }
}
}
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