How can I split string like key and value using scala in efficient way:

Question

I would like to split below emp string into key value pair.

var emp = "Map(employees -> [{"id":"100","name":"Alex","state":"MA"},{"id":"101","name":"Agni","state":"CA"},{"id":"102","name":"Sharo","state":"TX"}])"

Need to parse like below :

key: employees 
value : [{"id":"100","name":"Alex","state":"MA"},{"id":"101","name":"Agni","state":"CA"},{"id":"102","name":"Sharo","state":"TX"}]

I don't understand the question, emp looks like it's already in the format you're asking for. — Floegipoky
– Floegipoky, Commented Apr 21, 2022 at 20:25
Hi Musa, I think you mistakenly have put the Map you want to obtain instead of the string you want to parse. Or did I misunderstand your question? — Decly
– Decly, Commented Apr 21, 2022 at 20:27
Im new to scala. String looks like below. Here Map is just word. "Map(employees -> [{"id":"100","name":"Alex","state":"MA"},{"id":"101","name":"Agni","state":"CA"},{"id":"102","name":"Sharo","state":"TX"}])" — Musa
– Musa, Commented Apr 21, 2022 at 20:32

Decly · Accepted Answer · 2022-04-22 12:33:01Z

1

This code parse the string into 2 others (key and value):

object Parser extends App {
  
    val emp = "Map(employees -> {\"id\":\"100\",\"name\":\"Alex\",\"state\":\"MA\"},{\"id\":\"101\",\"name\":\"Agni\",\"state\":\"CA\"},{\"id\":\"102\",\"name\":\"Sharo\",\"state\":\"TX\"}])"
    
    val key = emp.substring(emp.indexOf("(") + 1, emp.indexOf(" -> "))
    val value = emp.substring(emp.indexOf(" -> ") + 4, emp.indexOf(")"))

    println(s"key: $key");
    println(s"value: $value")
}

edited Apr 22, 2022 at 12:33

answered Apr 21, 2022 at 21:06

Decly

3793 silver badges12 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Musa Over a year ago

Thanks @Decly ... How can I convert into Map(String,String) in single line ?

Decly Over a year ago

You can do something like Map(emp.substring(emp.indexOf("(") + 1, emp.indexOf(" -> ")) -> emp.substring(emp.indexOf(" -> ") + 4, emp.indexOf(")")))

Collectives™ on Stack Overflow

How can I split string like key and value using scala in efficient way:

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related