public class Main {

  public static void main(String[] args) {

    char[] myArray = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'};

    System.out.println(myArray);

​

    String myStr = "Hello, World!";

    myStr.getChars(7, 12, myArray, 4);

    System.out.println(myArray);

  }

}

​