/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
import java.util.regex.Matcher;
import java.util.regex.Pattern;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String input = "foo \\    \nbar";
 
    String pattern = "\\\\s+$";
 
    Pattern p = Pattern.compile(pattern, Pattern.MULTILINE);
 
      System.out.println(input + "\n\n====> Matches (" + pattern + ")==> " + p.matcher(input).matches());
	}
}

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