The length() of StringJoiner is used to find out the length of the StringJoiner in characters. It returns the length of the String representation of this StringJoiner. Note that if no add methods have been called, then the length of the String representation (either prefix + suffix or emptyValue) will be returned. The value should be equivalent to toString().length().
Syntax:
public int length()
Returns: This method returns the length of the current value of StringJoiner
Below programs illustrate the length() method:
Example 1: To demonstrate length() with delimiter ” “
Java
// Java program to demonstrate// length() method of StringJoinerimport java.util.StringJoiner;public class GFG { public static void main(String[] args) { // Creating StringJoiner with delimiter " " StringJoiner str = new StringJoiner(" "); // Adding elements in the StringJoiner str.add("Geeks"); str.add("for"); str.add("Geeks"); // Print the StringJoiner System.out.println("StringJoiner: " + str.toString()); // Printing the length of str // using length() method System.out.println(str.length()); }} |
Output:
StringJoiner: Geeks for Geeks 15
Example 2: To demonstrate length() with delimiter “, “
Java
// Java program to demonstrate// length() method of StringJoinerimport java.util.StringJoiner;public class GFG { public static void main(String[] args) { // Creating StringJoiner with delimiter "" StringJoiner str = new StringJoiner(", "); // Adding elements in the StringJoiner str.add("Geeks"); str.add("for"); str.add("Geeks"); str.add("A"); str.add("Computer"); str.add("Portal"); // Print the StringJoiner System.out.println("StringJoiner: " + str.toString()); // Printing the length of str // using length() method System.out.println(str.length()); }} |
Output:
StringJoiner: Geeks, for, Geeks, A, Computer, Portal 38
