qq_46152881的博客

计算公式： Random rand = new Random(); int i = rand.nextInt(max-min+1)+min; i = rand.nextInt()*(max-min+1)+min; double j = rand.nextDouble()*(max-min+1)+min;

一、static 1、static修饰变量 即静态变量， public class Person { private static int sum = 0; private String name; public Person(String name) { this.name = name; sum++; } public static void main(String[] args) { // TODO Auto-generated method stub Person[] pe