java随机生成十六进制颜色

 1 public static void main(String[] args) {
 2         
 3           String r,g,b;  
 4           Random random = new Random();  
 5           r = Integer.toHexString(random.nextInt(256)).toUpperCase();  
 6           g = Integer.toHexString(random.nextInt(256)).toUpperCase();  
 7           b = Integer.toHexString(random.nextInt(256)).toUpperCase();  
 8             
 9           r = r.length()==1 ? "0" + r : r ;  
10           g = g.length()==1 ? "0" + g : g ;  
11           b = b.length()==1 ? "0" + b : b ;  
12             
13           System.out.println( r+g+b);;  
14         
15     }

3A9890

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