public class StrBuf

{

            public static void main (String args[])

            {

            StringBuffer sbuf = new StringBuffer(25);

            System.out.println("Isi: " + sbuf.toString());

            System.out.println("Kapasitas : " + sbuf.capacity());

            System.out.println("Panjang   : " + sbuf.length());

            System.out.println("");

            sbuf.append("Selamat ");

            sbuf.append("Belajar Java");

            System.out.println("Isi: " + sbuf.toString());

            System.out.println("Kapasitas : " + sbuf.capacity());

            System.out.println("Panjang   : " + sbuf.length());

            System.out.println("");

            sbuf.delete(7,20);

            System.out.println("Isi: " + sbuf.toString());

            System.out.println("Kapasitas : " + sbuf.capacity());

            System.out.println("Panjang   : " + sbuf.length());

            }

}