Random String

import java.io.*; import java.security.SecureRandom; public class
RandomString {
  public static void main( String args[] )
  {
    StringBuilder str = new StringBuilder();
    String symbols = "aAbBcCdDeEfFgGhHkK";
    SecureRandom r = new SecureRandom();
    int loc = -1;
    char c = 0;
    for ( int k=0; k<8; k++)
    {
      loc = r.nextInt( symbols.length() ) ;
      c= symbols.charAt( loc ) ;
      str.append( c );
    }
    System.out.print( str );
  }
}