package experiment2;

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

            StringBuffer buffer = new StringBuffer(20);
            buffer.append('S');
            buffer.append("tringBuffer");
            System.out.println(buffer.charAt(1));
            System.out.println(buffer.capacity());
            System.out.println(buffer.indexOf("tring12345"));
            System.out.println("buffer = " + buffer.toString());
            System.out.println(buffer.length());
        }

    }