import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "([a-zA-Z0-9\\._%+-]+@[a-zA-Z0-9\\.-]+\\.[a-zA-Z]{2,4})[\\ \\:\\;\\?\\!]?";
final String string = "I got this plain text from wich I want to delete all email adresses (or replace by E). I want to keep everything else in the text file. The email adresses can be followed by a space, colon, semicolon, question or exclamation mark.\n"
+ "1.aasdf@blub.de\n"
+ "I work with 2.blub@blub.de gnuwin and tried grep but didn't got the right result\n"
+ "I got this plain text from wich I want to delete all email adresses (or replace by E). I want to keep everything else in the text \n"
+ "3.blub@blub.de file. The email adresses can be followed by a space, colon, semicolon, question or exclamation mark. I work with gnuwin and 4.blub.blub@blub.sdff de tried grep but didn't got the right result\n"
+ "5.blub@blub.de";
final Pattern pattern = Pattern.compile(regex);
final Matcher matcher = pattern.matcher(string);
while (matcher.find()) {
System.out.println("Full match: " + matcher.group(0));
for (int i = 1; i <= matcher.groupCount(); i++) {
System.out.println("Group " + i + ": " + matcher.group(i));
}
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html