StringCharacterIterator setIndex() method in Java with Examples

The setIndex() method of java.text.StringCharacterIterator class in Java is used to set the current index that is to be read by this StringCharacterIterator. This method takes the index to be set as a parameter and sets the index of this StringCharacterIterator at that index and then it returns that character. Syntax:

public char setIndex(int index)

Parameter: This method takes the index to be set as a parameter and sets the index of this StringCharacterIterator. Return Value: This method returns the character at the index set by this method. Exception: This method throw IllegalArgumentException if the specified index is not in the valid range (getBeginIndex(), getEndIndex() - 1). Program: Java

// Java program to demonstrate
// the above method

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

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

        StringCharacterIterator
            stringCharacterIterator
            = new StringCharacterIterator(
                "GeeksForGeeks");

        System.out.println("Current Index: "
                           + stringCharacterIterator
                                 .getIndex());

        int index = 5;

        System.out.println("Updated the index to: "
                           + index);

        System.out.println("Character at new current index: "
                           + stringCharacterIterator
                                 .setIndex(index));
    }
}

Reference: https://docs.oracle.com/javase/9/docs/api/java/text/StringCharacterIterator.html#setIndex-int-