How to check String is null in Scala? Last Updated : 26 Mar, 2024 Summarize Comments Improve Suggest changes Share Like Article Like Report In this article, we will learn how to check if a string is null in Scala. In Scala, you can check if a string is null using the following methods: Table of Content 1. Using the == operator:2. Using the eq method (recommended):3. Using Pattern Matching:1. Using the == operator: Scala object Main { def main(args: Array[String]) { val str: String = null if (str == null) { println("String is null") } else { println("String is not null") } } } Output: String is null2. Using the eq method (recommended):The eq method is a null-safe way of comparing objects in Scala. It returns true if both operands are null, or if the operands point to the same object instance. Scala object Main { def main(args: Array[String]) { val str: String = null if (str eq null) { println("String is null") } else { println("String is not null") } } } Output: String is null3. Using Pattern Matching: Scala object Main { def main(args: Array[String]) { val str: String = null str match { case null => println("String is null") case _ => println("String is not null") } } } Output: String is nullIt's generally recommended to use the eq method or pattern matching for checking null references, as they provide a more concise way of handling null values in Scala. Comment More infoAdvertise with us Next Article How to Check Datatype in Scala? M mdshoaibansari0307 Follow Improve Article Tags : Scala Similar Reads How to Check for Null in a Single Statement in Scala? In Scala, null is a Special type value that represents the absence of a value or a reference or the unavailability of a value for a variable. It is important to handle null values in programming otherwise it can lead to NullPointerException. In this article, we are going to see different examples th 2 min read How to Check Datatype in Scala? In this article, we will learn to check data types in Scala. Data types in Scala represent the type of values that variables can hold, aiding in type safety and program correctness. Table of Content Checking Datatype in ScalaApproach 1: Use Pattern Matching in ScalaApproach 2: Use the getClass Metho 3 min read How to check dataframe is empty in Scala? In this article, we will learn how to check dataframe is empty or not in Scala. we can check if a DataFrame is empty by using the isEmpty method or by checking the count of rows. Syntax: val isEmpty = dataframe.isEmpty OR, val isEmpty = dataframe.count() == 0 Here's how you can do it: Example #1: us 2 min read How to use Is Not Null in PySpark In data processing, handling null values is a crucial task to ensure the accuracy and reliability of the analysis. PySpark, the Python API for Apache Spark, provides powerful methods to handle null values efficiently. In this article, we will go through how to use the isNotNull method in PySpark to 4 min read How to resolve type mismatch error in Scala? A type mismatch error in Scala is a compile-time error that occurs when the compiler detects an inconsistency between the expected type and the actual type of an expression, variable, or value. There are different methods to resolve type mismatches in Scala. In this article, we are going to discuss 3 min read Scala - String Methods with Examples In Scala, as in Java, a string is a sequence of characters. In Scala, objects of String are immutable which means a constant and cannot be changed once created. In the rest of this section, we discuss the important methods of java.lang.String class. char charAt(int index): This method is used to ret 12 min read Like