The previous() method of java.text.StringCharacterIterator class in Java is used to get the previous character that is to be read by this StringCharacterIterator. This method decrements this iterator to one index backwards and returns that previous character. Syntax:

public char previous()

Parameter: This method do not accept any parameter. Return Value: This method returns the previous character that is to be read by this StringCharacterIterator. Exception: This method do not throw any Exception. Program:

 

// 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");

​

        stringCharacterIterator.next();

​

        System.out.println("Current character: "

                           + stringCharacterIterator

                                 .current());

​

        System.out.println("Previous character: "

                           + stringCharacterIterator

                                 .previous());

    }

}

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