public class StringBufferExample {
  public static  void main(String [] args) {
    String hello = "Love Java";
    StringBuffer helloBuffer = new StringBuffer(hello);
    
    System.out.println("append: "+ helloBuffer.append(" Beans!"));
    System.out.println("delete: "+ helloBuffer.delete(5, helloBuffer.length()) );
    System.out.println("insert: "+ helloBuffer.insert(5, "coffee Beans "));
    System.out.println("reverse:"+ helloBuffer.reverse() );
    
  }
}