The add(CharSequence newElement) of StringJoiner adds a copy of the given CharSequence value as the next element of the StringJoiner value. If newElement is null, then “null” is added.
public StringJoiner add(CharSequence newElement)
Parameters: This method takes a mandatory parameter newElement which is the element to be added.
Returns: This method returns a reference to this StringJoiner
Below programs illustrate the add() method:
Example 1: To demonstrate add() with delimeter ” ”
Geeks for Geeks
Example 2: To demonstrate add() with delimeter “,”
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