/* package whatever; // don't place package name! */
 
import java.util.*;
import java.util.regex.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
    public static void main(String[] args) {
        String testString = "0.\\tnodeId=\\\"abcde\\\"\\n1.\\txyz_=\\\"help\\\"\\n2.";
        String separatorRegex = "\\\\t";
        Matcher m = Pattern.compile(separatorRegex, Pattern.MULTILINE).matcher(testString);
        if (m.find()) {
            System.out.println("Found pattern!");
        } else {
            System.out.println("Not found!");
        }
    }
}

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