java pattern

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class T {

	public static boolean test() {
		String regex = "^[^']{0,50}$";
		Pattern pattern = Pattern.compile(regex);
		Matcher matcher = pattern.matcher("123");
		return matcher.matches();
	}

	public static boolean test2(String regex, String charSequence) {
		Pattern pattern = Pattern.compile(regex);
		Matcher matcher = pattern.matcher(charSequence);
		return matcher.matches();
	}

	public static void main(String[] args) {
		String regex = "^[^']{0,50}$";
		String charSequence = "123";
		System.out.println(test2(regex, charSequence));
	}
}