开发者学堂课程【大数据实时计算框架 Spark 快速入门：Spark textFile 和排序-4】学习笔记，与课程紧密联系，让用户快速学习知识。

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Spark textFile 和排序-4

ScondSortKey 二次排序相关代码

1 package com. shsxt. study.core;

2

3import java. io.Serializable;

6

7public class SecondSortKey implements Serializable, Ordered{

8

9private static final long serialVersionUID =5431844887224611430L;

10

11private int first;

12private int second;

13@Override

15public String to String()

16return "SecondSortKey [first=" + first + ", second="+ second + "]";

17}

18

19@Override

20public int hashCode() (

21final int prime = 31;

22int result =1;

23result = prime * result + first;

24result =prime * result + second;

25return result;