How to search for a Key in a Scala Map?

0 votes

Can anyone show how to search for KEY in a Scala Map?

Jul 29 in Apache Spark by Ronita
25 views

1 answer to this question.

0 votes

Hey,

The Map.contains() method will tell you if a certain key exists in the Map. Here is an example:

scala> m.contains("Giti")

res10: Boolean = true

scala> m.contains("Niti")

res11: Boolean = false
answered Jul 29 by Gitika
• 25,340 points

Related Questions In Apache Spark

0 votes
1 answer

How to get ID of a map task in Spark?

you can access task information using TaskContext: import org.apache.spark.TaskContext sc.parallelize(Seq[Int](), ...READ MORE

answered Nov 20, 2018 in Apache Spark by Frankie
• 9,810 points
398 views
0 votes
1 answer

How to remove the elements with a key present in any other RDD?

Hey, You can use the subtractByKey () function to ...READ MORE

answered Jul 22 in Apache Spark by Gitika
• 25,340 points
77 views
0 votes
1 answer

How to append a list in Scala?

Hey, For this purpose, we use the single ...READ MORE

answered Jul 26 in Apache Spark by Gitika
• 25,340 points
44 views
0 votes
1 answer

How to declare a Empty Scala Map?

Hi, You can either declare an empty Scala ...READ MORE

answered Jul 29 in Apache Spark by Gitika
• 25,340 points

edited Jul 29 by Gitika 26 views
0 votes
1 answer
0 votes
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
• 10,670 points
3,002 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
• 10,670 points
334 views
0 votes
10 answers

hadoop fs -put command?

put syntax: put <localSrc> <dest> copy syntax: copyFr ...READ MORE

answered Dec 7, 2018 in Big Data Hadoop by Aditya
14,831 views
0 votes
1 answer

How to execute a function in apache-scala?

Hi, Here is a simple example of how ...READ MORE

answered Jul 1 in Apache Spark by Gitika
• 25,340 points
43 views
0 votes
1 answer

How can you use "for" statement in scala to print list from collection?

Hi, You can use for loop in scala using ...READ MORE

answered Jul 5 in Apache Spark by Gitika
• 25,340 points
33 views