Java StringJoiner - toString() Method

The java.util.StringJoiner.toString() method returns the current value, consisting of the prefix, the values added so far separated by the delimiter, and the suffix, unless no elements have been added in which case, the prefix + suffix or the emptyValue characters are returned.

Syntax

public String toString()

Parameters

No parameter is required.

Return Value

Returns the string representation of this StringJoiner.

Exception

NA

Example:

In the example below, the java.util.StringJoiner.toString() method returns the content of the given StringJoiner.

import java.util.*;

public class MyClass {
  public static void main(String[] args) {
    //creating a StringJoiner object
    StringJoiner joinNames = new StringJoiner(", ", "[", "]");
   
    //Adding values to joinNames
    joinNames.add("John");
    joinNames.add("Marry");
    joinNames.add("Kim");
    joinNames.add("Jo");
    joinNames.add("Ramesh");

    //printing joinNames using toString() method
    System.out.print("joinNames contains: ");
    System.out.println(joinNames.toString());
  }
}

The output of the above code will be:

joinNames contains: [John, Marry, Kim, Jo, Ramesh]