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public static Integer i ;
static{
i = -1;
}
public static void main(String[] args) {
Vector<Integer> v = new Vector<Integer>();
v.add(1);
v.add(2);
i = (i +1)%v.size();
System.out.println(v.get(i));
i ++;
if(i >= v.size())
i = -1;
}
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import="java.util.*"%>
<%!
private static int index = -1;
%><%
Vector<Integer> v = new Vector<Integer>();
v.add(1);
v.add(2);
out.println(v.get(++index));
if(index >= v.size()-1)
index = -1;
%>
private static int index = 0;
public static void main(String[] args) {
Vector<Integer> v = new Vector<Integer>();
v.add(1);
v.add(2);
System.out.println(v.get(index++));
if(index >= v.size())
index = 0;
}
class Number{
private static int number = 1;
public static int getNumber(){
if(number > 2) number >>= 1;
return number++;
}
}
这个貌似可以得到你要求的 12121212...