java 对ArrayList进行分页实例代码

  List<E> subList(int fromIndex, int toIndex);

public class TestArrayList {  public static void main(String[] args) {    List<Long> datas = Arrays.asList(new Long [] {1L,2L,3L,4L,5L,6L,7L});  }}

import java.util.Arrays;import java.util.List;public class TestArrayList {  private static final Integer PAGE_SIZE = 3;  public static void main(String[] args) {    List<Long> datas = Arrays.asList(new Long [] {1L,2L,3L,4L,5L,6L,7L,8L});    //总记录数    Integer totalCount = datas.size();    //分多少次处理    Integer requestCount = totalCount / PAGE_SIZE;    for (int i = 0; i <= requestCount; i++) {      Integer fromIndex = i * PAGE_SIZE;      //如果总数少于PAGE_SIZE,为了防止数组越界,toIndex直接使用totalCount即可      int toIndex = Math.min(totalCount, (i + 1) * PAGE_SIZE);      List<Long> subList = datas.subList(fromIndex, toIndex);      System.out.println(subList);      //总数不到一页或者刚好等于一页的时候,只需要处理一次就可以退出for循环了      if (toIndex == totalCount) {        break;      }    }  }}