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import java.util.*;
import java.lang.*;
import java.io.*;
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String myString = "HAIRCUT $42 PER PERSON";
		myString = myString.replaceAll("^((?![\|\=\;])[\p{L}\p{N}\p{M}\p{P}\p{Zs}])+$", "");
 
		System.out.println(myString);
	}
}

Main.java:10: error: illegal escape character
		myString = myString.replaceAll("^((?![\|\=\;])[\p{L}\p{N}\p{M}\p{P}\p{Zs}])+$", "");
		                                       ^
Main.java:10: error: illegal escape character
		myString = myString.replaceAll("^((?![\|\=\;])[\p{L}\p{N}\p{M}\p{P}\p{Zs}])+$", "");
		                                         ^
Main.java:10: error: illegal escape character
		myString = myString.replaceAll("^((?![\|\=\;])[\p{L}\p{N}\p{M}\p{P}\p{Zs}])+$", "");
		                                           ^
Main.java:10: error: illegal escape character
		myString = myString.replaceAll("^((?![\|\=\;])[\p{L}\p{N}\p{M}\p{P}\p{Zs}])+$", "");
		                                                ^
Main.java:10: error: illegal escape character
		myString = myString.replaceAll("^((?![\|\=\;])[\p{L}\p{N}\p{M}\p{P}\p{Zs}])+$", "");
		                                                     ^
Main.java:10: error: illegal escape character
		myString = myString.replaceAll("^((?![\|\=\;])[\p{L}\p{N}\p{M}\p{P}\p{Zs}])+$", "");
		                                                          ^
Main.java:10: error: illegal escape character
		myString = myString.replaceAll("^((?![\|\=\;])[\p{L}\p{N}\p{M}\p{P}\p{Zs}])+$", "");
		                                                               ^
Main.java:10: error: illegal escape character
		myString = myString.replaceAll("^((?![\|\=\;])[\p{L}\p{N}\p{M}\p{P}\p{Zs}])+$", "");
		                                                                    ^
8 errors

Standard output is empty