com.google.guava概解

<!-- https://mvnrepository.com/artifact/com.google.guava/guava -->
<dependency>
	<groupId>com.google.guava</groupId>
	<artifactId>guava</artifactId>
	<version>27.1-jre</version>
</dependency>

 

Lists.partition

    /**
     * Lists.partition
     * @author zhangjianhui6
     * @date 2019/9/9.
     */
    @Test
    public void test07(){
        List<Integer> numList = Lists.newArrayList(1, 2, 3, 4, 5, 6, 7, 8);
        List<List<Integer>> lists = Lists.partition(numList,3);
        System.out.println(JSONObject.toJSONString(lists)); // [[1, 2, 3], [4, 5, 6], [7, 8]]
    }