RegularExpressions.java

package com.jetbrains.editing;

/**
 * Created by hadihariri on 09/09/16.
 */
public class RegularExpressions {

    public void regularExpressions() {

        String creditCard = "^4[0-9]{12}(?:[0-9]{3})?$";

        String grouping = "(?<test>Something \\k<";

    }
}