标签:generate ber key cti rate function number source 如何
import java.security.SecureRandom;
import java.util.Random;
public class RandomString {
public static final String SOURCES =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890";
public static void main(String[] args) {
RandomString rs = new RandomString();
System.out.println(rs.generateString(new Random() SOURCES 10));
System.out.println(rs.generateString(new Random() SOURCES 10));
System.out.println(rs.generateString(new SecureRandom() SOURCES 15));
System.out.println(rs.generateString(new SecureRandom() SOURCES 15));
}
/**
* Generate a random string.
*
* @param random the random number generator.
* @param characters the characters for generating string.
* @param length the length of the generated string.
* @return
*/
public String generateString(Random random String characters int length) {
char[] text = new char[length];
for (int i = 0; i < length; i++) {
text[i] = characters.charAt(random.nextInt(characters.length()));
}
return new String(text);
}
}
标签:generate ber key cti rate function number source 如何
原文地址:http://www.cnblogs.com/qhc1105543773/p/7789151.html