Java 通過Math.random() 生成6位隨機數

public static void main(String[] args) {
        String sjs="";
        
        for (int i = 0; i < 6; i++) {
            int max=9,min=0;
            int ran2 = (int) (Math.random()*(max-min)+min); 
            System.out.println(ran2 );
            sjs=ran2+sjs;
        }
        System.out.println("6位隨機數： "+sjs );
    }