import java.util.*;
import java.util.regex.*;
class Ideone
{
{
String s
= "abc:1234567,cd:2345678,efg:3456789012"; Pattern pattern = Pattern.compile("\\b(?<!abc:)\\d{7}\\b");
Matcher matcher = pattern.matcher(s);
while (matcher.find()){
System.
out.
println(matcher.
group()); }
}
}
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