Spark language APIs

Spark has integration with a variety of programming languages such as Scala, Java, Python, and R. Developers can write their Spark program in either of these languages. This freedom of language is also one of the reasons why Spark is popular among developers. If you compare this to Hadoop MapReduce, in MapReduce, the developers had only one choice: Java, which made it difficult for developers from another programming languages to work on MapReduce.