随机数的问题？

[lanyuefang]

如何利用RANDOM产生一个7位或多位密码？

[lsj_smile]

long num = (long)(Math.random() * 10000000);
String pwd = Long.toString(num);
if (pwd.length()<7) 前面补零

要不就是
long num = (long)(Math.random() * 9000000)+1000000;
String pwd = Long.toString(num);

[zhaoyb]

(int)(10000000*Math.random())