random number generator for special characters [duplicate]

Question

I am trying to generate random number with special characters

what i do for simple integers is

Random randomGenerator = new Random();
int randomNumber = randomGenerator.nextInt();

what can i do to get some thing like this in my random numbers

String salt = "Random$SaltValue#WithSpecialCharacters12@$@4&#%^$*";

thanks

Answer 1

You can try the following:

• Init your special characters set.
• Create a StringBuilder to contain your desired string.
• Get random character and append to StringBuilder object.

The code:

final String alphabet = "<Your special characters>";
final int N = alphabet.length();
Random rd = new Random();
int iLength = <length you want>;
StringBuilder sb = new StringBuilder(iLength);
for (int i = 0; i < iLength; i++) {
    sb.append(alphabet.charAt(rd.nextInt(N)));
}