Scala when to use x 2 and x 2

0 votes
Could you please explain when to use x(2) and x._2? As functionality is the same for both, but sometimes it fails one or other.
Jul 22, 2019 in Apache Spark by Esha
512 views

1 answer to this question.

0 votes

image

In the above statement, x(2) is specifying an array and hence it cannot be compared with a string. It represents the second element of the rdd and if you didn't specify the second element, how can it be compared. If you still want to execute this statement then you will have to use split function.

The below statement is the same as the above statement after using split function. x._2 represents the value of the second element of the rdd.

image

Hope it helps!

If you want to know more about Apache Spark Scala, It's highly recommended to go for Apache Spark certification course today.

Thanks!!

answered Jul 22, 2019 by Yogi

Related Questions In Apache Spark

0 votes
1 answer

When not to use foreachPartition and mapPartition?

With mapPartion() or foreachPartition(), you can only ...READ MORE

answered Apr 30, 2018 in Apache Spark by Data_Nerd
• 2,390 points
5,632 views
0 votes
0 answers

How can we optimize and minimize the memory when work with scala use case?

When we calculate some use case with ...READ MORE

Jul 5, 2019 in Apache Spark by nilam
188 views
0 votes
1 answer

How to use yield keyword in scala and why it is used instead of println?

Hi, The yield keyword is used because the ...READ MORE

answered Jul 6, 2019 in Apache Spark by Gitika
• 65,950 points
723 views
0 votes
1 answer
+1 vote
2 answers
+1 vote
1 answer

Hadoop Mapreduce word count Program

Firstly you need to understand the concept ...READ MORE

answered Mar 16, 2018 in Data Analytics by nitinrawat895
• 11,380 points
7,910 views
0 votes
1 answer

hadoop.mapred vs hadoop.mapreduce?

org.apache.hadoop.mapred is the Old API  org.apache.hadoop.mapreduce is the ...READ MORE

answered Mar 16, 2018 in Data Analytics by nitinrawat895
• 11,380 points
1,333 views
+2 votes
11 answers

hadoop fs -put command?

Hi, You can create one directory in HDFS ...READ MORE

answered Mar 16, 2018 in Big Data Hadoop by nitinrawat895
• 11,380 points
62,870 views
0 votes
1 answer

How can we optimize and minimize the memory when work with scala use case?

Hi, There is a term in Scala that is ...READ MORE

answered Jul 5, 2019 in Apache Spark by Gitika
• 65,950 points
232 views
0 votes
1 answer

How to use Scala anonymous functions and why do we use it?

Hi, Anonymous functions in Scala is the lightweight ...READ MORE

answered Jul 26, 2019 in Apache Spark by Gitika
• 65,950 points
236 views