import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = ".*told me to say.*";
final String string = "ex1: I am * years old\n"
+ "valid matches:\n"
+ "- \"I am 24 years old\"\n"
+ "- \"I am twenty four years old\"\n\n"
+ "ex2: what color is [my|your|his|her] (bright red|blue|green|lemon chiffon) *\n"
+ "valid matches:\n"
+ "- \"what color is his lemon chiffon car\"\n"
+ "- \"what color is my some random text till the end of string\"\n\n"
+ "ex3: [*] told me to say *\n"
+ "valid matches:\n"
+ "- \"Bob and Alice told me to say hallelujah\"\n"
+ "- \"told me to say by nobody\"";
final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE);
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