StringBuffer getChars() method in Java with Examples

// Java program to demonstrate
// the getChars() Method.

import java.util.*;

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

        // create a StringBuffer object
        // with a String pass as parameter
        StringBuffer
            str
            = new StringBuffer("Geeks For Geeks");

        // print string
        System.out.println("String = "
                           + str.toString());

        // create a char Array
        char[] array = new char[15];

        // initialize all character to .(dot).
        Arrays.fill(array, '.');

        // get char from index 0 to 9
        // and store in array start index 3
        str.getChars(0, 9, array, 1);

        // print char array after operation
        System.out.print("char array contains : ");

        for (int i = 0; i < array.length; i++) {
            System.out.print(array[i] + " ");
        }
    }
}

// Java program to demonstrate
// exception thrown by the getChars() Method.

import java.util.*;

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

        // create a StringBuffer object
        // with a String pass as parameter
        StringBuffer
            str
            = new StringBuffer("Contribute Geeks");

        // create a char Array
        char[] array = new char[10];

        // initialize all character to $(dollar sign).
        Arrays.fill(array, '$');

        try {

            // if start is greater then end
            str.getChars(2, 1, array, 0);
        }

        catch (Exception e) {
            System.out.println("Exception: " + e);
        }
    }
}