Java StringJoiner - length() Method
The java.util.StringJoiner.length() method 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.
Syntax
public int length()
Parameters
No parameter is required.
Return Value
Returns the length of the current value of StringJoiner.
Exception
NA
Example:
In the example below, the java.util.StringJoiner.length() method is used to find out the length 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");
//printing joinNames
System.out.println("joinNames contains: " + joinNames);
//printing the length of joinNames
System.out.print("length of joinNames: ");
System.out.println(joinNames.length());
}
}
The output of the above code will be:
joinNames contains: [John, Marry, Kim] length of joinNames: 18
❮ Java.util - StringJoiner
