java regex
// Java program to demonstrate
// Pattern.compile() method
import java.util.regex.*;
public class GFG {
public static void main(String[] args)
{
// create a REGEX String
String REGEX = ".*www.*";
// creare the string
// in which you want to search
String actualString
= "www.geeksforgeeks.org";
// compile the regex to create pattern
// using compile() method
Pattern pattern = Pattern.compile(REGEX);
// get a matcher object from pattern
Matcher matcher = pattern.matcher(actualString);
// check whether Regex string is
// found in actualString or not
boolean matches = matcher.matches();
System.out.println("actualString "
+ "contains REGEX = "
+ matches);
}
}
import java.util.regex.*;
public class RegexExample1{
public static void main(String args[]){
//1st way
Pattern p = Pattern.compile(".s");//. represents single character
Matcher m = p.matcher("as");
boolean b = m.matches();
//2nd way
boolean b2=Pattern.compile(".s").matcher("as").matches();
//3rd way
boolean b3 = Pattern.matches(".s", "as");
System.out.println(b+" "+b2+" "+b3);
}}