Android生成随机数
此方法通过把当前时刻长整型数传给Random对象,让它产生的值随着时间而变化。
String s = "";
Random ran =new Random(System.currentTimeMillis());
for (int i = 0; i < 10; i++) {
s =s + "\n" + ran.nextInt(100);
}
Toast.makeText(UiTestActivity.this,"Random: \n" + s, Toast.LENGTH_LONG).show();