What is the substring method in Scala?

Scala offers many functions for string manipulation, the substring function being one of them. We can use the substring function to take out a required part of a string, using the starting index.

Syntax

String substring(int startIndex, int endIndex)

Parameter

The substring function takes two parameters: the index at which the required part of the string starts, and the index at which it ends.

Return value

The substring function returns the substring that begins at the specified index and ends at the specified index (or at the end of the main string, if the end index is not specified).

Code

The following code shows the implementation of the substring function.

// Example code for substring() function
object Main extends App{
        // Using substring function without end index
        val sub_string = "This is an Edpresso shot".substring(11)
        // Using substring function with end index
        val sub_string2 = "This is an Edpresso shot".substring(11, 15)
          
        // Displays the substrings
        println(sub_string)
        println(sub_string2)
}

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