java 随机获取十六进制颜色代码

public class RandomColor {
 
 public String getRandColor() {
  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;
//  return "#" + r + g + b;
  return r+g+b;
 }

}