How to get same string generated by pseudo random generator with some initialized string?

How to get same string generated by pseudo random generator with some initialized string in java. I want something like this

I get this code from somewhere. It produces fine random string but what I want is that whenever I pass some string let suppose "Name" with it, it gives me the same random string generated with this function. Means I want same random string with "Name".

public static String RandomAlphaNumericString(int numChars)
{
    char[] All = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456879".toCharArray();
    SecureRandom srand = new SecureRandom();
    Random rand = new Random();
    char[] buff = new char[numChars];
    for (int i = 0; i < numChars; ++i) {
        // reseed rand once you've used up all available entropy bits
        if ((i % 10) == 0) {
          rand.setSeed(srand.nextLong()); // 64 bits of random!
        }
        buff[i] = All[rand.nextInt(All.length)];
    }
    return new String(buff);
}