import java.util.regex.Pattern;
import java.util.regex.Matcher;
// b[aeou]y: This pattern looks for strings that match the following:
// b: The letter "b".
// [aeou]: Any single character that is either "a", "e", "o", or "u".
// y: The letter "y".
public class Program {
public static boolean checkPattern(String pattern, String text) {
Pattern re = Pattern.compile(pattern, Pattern.CASE_INSENSITIVE);
Matcher matcher = re.matcher(text);
return matcher.find();
}
public static void main(String[] args) {
String pattern = "b[aeou]y";
System.out.println(checkPattern(pattern, "A smart boy")); // b o y
System.out.println(checkPattern(pattern, "I want to buy this laptop")); // b u y
System.out.println(checkPattern(pattern, "baay"));
System.out.println(checkPattern(pattern, "baeouy"));
System.out.println(checkPattern(pattern, "baey"));
System.out.println(checkPattern(pattern, "This is beauty"));
System.out.println(checkPattern(pattern, "A programming book"));
}
}
/*
run:
true
true
false
false
false
false
false
*/
