2019-05-28 ASCII encoded symbols

public class AsciiSymbolConstants {

    public static final String DISPLAY_SYMBOL = "\u0020\u0021"
            + "\""
            + "\u0023\u0024\u0025\u0026\u0027\u0028\u0029\u002a\u002b\u002c\u002d\u002e\u002f"
            + "\u003a\u003b\u003c\u003d\u003e\u003f\u0040\u005b"
            + "\\"
            + "\u005d\u005e\u005f\u0060\u007b\u007c\u007d\u007e";

    public static final String NOT_DISPLAY_SYMBOL =
            "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\u0008\u0009"
                    + "\n" + "\u000b\u000c"
                    + "\r" + "\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f";
}