CharacterIterator first() method in Java with Examples

The first() method of java.text.CharacterIterator interface in Java is used to get the character at the beginning of this CharacterIterator. This method sets the position of the iterator to the first character, using getBeginIndex(), and then returns that character.

Syntax:

public char first()

Parameter: This method do not accept any parameter.

Return Value: This method sets the position of the iterator to the first character, using getBeginIndex(), and then returns that character.

Exception: This method do not throw any Exception.

Program:

// Java program to demonstrate
// the above method

import java.text.*;
import java.util.*;

public class CharacterIteratorDemo {
    public static void main(String[] args)
    {

        CharacterIterator characterIterator
            = new StringCharacterIterator(
                "GeeksForGeeks");

        System.out.println("First character: "
                           + characterIterator
                                 .first());
    }
}

Output:

First character: G

Reference: https://docs.oracle.com/javase/9/docs/api/java/text/CharacterIterator.html#first–

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