New to Java

I am trying to store some hex values in a byte array:

public static final byte[][] hexValue= {
{03, 01, 106, 00, 49,},
{C3, 01, 01, 73, 00, 01},
{46, 00, 01, 01, 6F, 03},
};

I am able to store values which are less than 128 (range of byte) but I also want to store values abouve this value.

Can anyone suggest a workaround for this.

Thanks