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PartitionDemo.java
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39 lines (27 loc) · 1.07 KB
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package com.guava;
import com.google.common.collect.Lists;
import com.sun.org.apache.xml.internal.security.utils.JavaUtils;
import org.apache.commons.collections.CollectionUtils;
import java.util.ArrayList;
import java.util.List;
public class PartitionDemo {
public static void main(String[] args) {
testPartition();
}
public static void testNewArray() {
ArrayList<String> arrayList = Lists.newArrayList("1", "2", "3");
List<String> list = Lists.newArrayList("lin","chen","wu","zhang","qiu");
}
public static void testPartition() {
//初始化list
List<String> list = Lists.newArrayList("lin","chen","wu","zhang","qiu");
//分页，每页2个元素
List<List<String>> partitionList = Lists.partition(list, 2);
if (CollectionUtils.size(partitionList) > 0) {
//下标是从0开始的,先判断集合的size，避免数组越界。
List<String> partList = partitionList.get(0);
//结果为 [lin, chen]
System.out.println(partList);
}
}
}