java随机生成十六进制颜色

public static void main(String[] args) {  String r,g,b;    Random random = new Random();    r = Integer.toHexString(random.nextInt(256)).toUpperCase();    g = Integer.toHexString(random.nextInt(256)).toUpperCase();    b = Integer.toHexString(random.nextInt(256)).toUpperCase();        r = r.length()==1 ? "0" + r : r ;    g = g.length()==1 ? "0" + g : g ;    b = b.length()==1 ? "0" + b : b ;        System.out.println( r+g+b);;  }

3A9890

http://wandejun1012.iteye.com/blog/1179801