StringBuffer example

class StringBuf

{

        public static void main(String args[])

        {

                StringBuffer sb = new StringBuffer("Hello World");

                System.out.println(sb + ".capacity() = " + sb.capacity());

                System.out.println(sb + ".length() = " + sb.length());

                System.out.println(sb + ".insert(5,aaa) = " + sb.insert(5,"aaa"));

                System.out.println(sb + ".capacity() = " + sb.capacity());

                System.out.println(sb + ".length() = " + sb.length());

                System.out.println(sb + ".append(bbbb) = " + sb.append("bbbb"));

                System.out.println(sb + ".reverse() = " + sb.reverse());

        }

}