Examples of java.lang.StringBuffer

java.lang.StringBuffer
A thread-safe, mutable sequence of characters. A string buffer is like a {@link String}, but can be modified. At any point in time it contains some particular sequence of characters, but the length and content of the sequence can be changed through certain method calls.
String buffers are safe for use by multiple threads. The methods are synchronized where necessary so that all the operations on any particular instance behave as if they occur in some serial order that is consistent with the order of the method calls made by each of the individual threads involved.
The principal operations on a StringBuffer are the append and insert methods, which are overloaded so as to accept data of any type. Each effectively converts a given datum to a string and then appends or inserts the characters of that string to the string buffer. The append method always adds these characters at the end of the buffer; the insert method adds the characters at a specified point.
For example, if z refers to a string buffer object whose current contents are "start", then the method call z.append("le") would cause the string buffer to contain "startle", whereas z.insert(4, "le") would alter the string buffer to contain "starlet".
In general, if sb refers to an instance of a StringBuffer, then sb.append(x) has the same effect as sb.insert(sb.length(), x).
Whenever an operation occurs involving a source sequence (such as appending or inserting from a source sequence) this class synchronizes only on the string buffer performing the operation, not on the source.
Every string buffer has a capacity. As long as the length of the character sequence contained in the string buffer does not exceed the capacity, it is not necessary to allocate a new internal buffer array. If the internal buffer overflows, it is automatically made larger. As of release JDK 5, this class has been supplemented with an equivalent class designed for use by a single thread, {@link StringBuilder}. The StringBuilder class should generally be used in preference to this one, as it supports all of the same operations but it is faster, as it performs no synchronization. @author Arthur van Hoff @version 1.101, 11/17/05 @see java.lang.StringBuilder @see java.lang.String @since JDK1.0

    private String formatColor(String[] saSide) {
        StringBuffer sb = new StringBuffer(19);
        return sb.append(border).append(saSide[0]).append(color).toString();
    }
    private String formatWidth(String[] saSide) {
        StringBuffer sb = new StringBuffer(19);
        return sb.append(border).append(saSide[0]).append(width).toString();
    }

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        StringBuffer sb = new StringBuffer(19);
        return sb.append(border).append(saSide[0]).append(width).toString();
    }


    private String formatStyle(String[] saSide) {
        StringBuffer sb = new StringBuffer(19);
        return sb.append(border).append(saSide[0]).append(style).toString();
    }

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        }
        return sessionBean;
    }


    public String toString() {
        StringBuffer sb = new StringBuffer( 128 );
        sb.append( "[ " );
        sb.append( "sessionName( " + getSessionName() + " )" );
//        sb.append( ", status( " + getStatus() + " )" );
        sb.append( ", uid( " + uid + " )" );
        sb.append( ", startDate( " + getStartDateString() + " )" );
        sb.append( ", endDate( " + getEndDateString() + " )" );
        sb.append( ", playbackFile( " + playbackFile + " )" );
        sb.append( ", recordFile( " + recordFile + " )" );
        sb.append( ", testUser( " + getTestUser() + " )" );
        sb.append( ", recordDesc( " + recordSessionBean.getDescription() + " )" );
        sb.append( ", state( " + getSessionState() + " )" );
        sb.append( ", testCount( " + testCount() + " )" );
        sb.append( ", recorded test count( " + playbackSessionBean.getRecordedTestCount() + " )" );
        sb.append( ", passed( " + playbackSessionBean.getPassedCount() + " )" );
        sb.append( ", failed( " + playbackSessionBean.getFailedCount() + " )" );
        sb.append( ", inProgress( " + inProgressCnt() + " )" );
        sb.append( " ]" );
        return sb.toString();
    }

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     * Log a particular message
     *
     * @param mail the mail to process
     */
    public void service(Mail mail) {
        log(new StringBuffer(160).append("Logging mail ").append(mail.getName()).toString());
        if (comment != null) log(comment);
        try {
            if (headers) log(getMessageHeaders(mail.getMessage()));
            if (body) {
                int len = bodyMax > 0 ? bodyMax : mail.getMessage().getSize();
                StringBuffer text = new StringBuffer(len);
                InputStream is = mail.getMessage().getRawInputStream();
                byte[] buf = new byte[1024];
                int read = 0;
                while (text.length() < len && (read = is.read(buf)) > -1) {
                    text.append(new String(buf, 0, Math.min(read, len - text.length())));
                }
                log(text.toString());
            }
        }
        catch (MessagingException e) {
            log("Error logging message.", e);
        }

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     * 
     * @param message
     */
    private String getMessageHeaders(MimeMessage message) throws MessagingException {
        Enumeration heads = message.getAllHeaderLines();
        StringBuffer headBuffer = new StringBuffer(1024).append("\n");
        while(heads.hasMoreElements()) {
            headBuffer.append(heads.nextElement().toString()).append("\n");
        }
        return headBuffer.toString();
    }

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     * to <code>DISCONNECTED_STATE</code>.
     ***/
    public POP3()
    {
        setDefaultPort(DEFAULT_PORT);
        __commandBuffer = new StringBuffer();
        __popState = DISCONNECTED_STATE;
        _reader = null;
        __writer = null;
        _replyLines = new Vector();
        _commandSupport_ = new ProtocolCommandSupport(this);

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      st . nextElement();
      return( st . hasMoreElements() ) ? Boolean.TRUE : null;
   }
   /** Convenience method.  token in values must be name tokens */
   final public void setEnumeration(String values){
      StringBuffer sb = new StringBuffer(";");
      if ( values == null || values.trim().length() == 0 ) {
         setSubProp( null , ENUM , Property.constraint);
         setSubPropEval( ENUM , null );
         setSubPropMerge( ENUM , null );
         return;
      }
      enableSubProp( "XMLString.ENUM" );
      values = values.trim();
      StringTokenizer st = new StringTokenizer( values , xmlWhitespace );
      while ( st . hasMoreElements() ) {
         String str = (String) st . nextElement();
         if ( str . equals("") || !isNm( "A"+str , null ).booleanValue() ) {
            throw new RuntimeException("Attempt to create enumeration with non-NMTOKEN value >" + str + "<\n");
         }
         sb . append( str );
         sb . append( ";" );
      }
      setSubProp( sb . toString() , ENUM , Property.constraint );
   }

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        m_setterString = "addLiteralResultAttribute";


        return m_setterString;
      }


      StringBuffer outBuf = new StringBuffer();


      outBuf.append("set");


      if ((m_namespace != null)
              && m_namespace.equals(Constants.S_XMLNAMESPACEURI))
      {
        outBuf.append("Xml");
      }


      int n = m_name.length();


      for (int i = 0; i < n; i++)
      {
        char c = m_name.charAt(i);


        if ('-' == c)
        {
          i++;


          c = m_name.charAt(i);
          c = Character.toUpperCase(c);
        }
        else if (0 == i)
        {
          c = Character.toUpperCase(c);
        }


        outBuf.append(c);
      }


      m_setterString = outBuf.toString();
    }


    return m_setterString;
  }

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     * to <code>DISCONNECTED_STATE</code>.
     ***/
    public POP3()
    {
        setDefaultPort(DEFAULT_PORT);
        __commandBuffer = new StringBuffer();
        __popState = DISCONNECTED_STATE;
        _reader = null;
        __writer = null;
        _replyLines = new Vector();
        _commandSupport_ = new ProtocolCommandSupport(this);

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     * @return The last server response.
     ***/
    public String getReplyString()
    {
        Enumeration en;
        StringBuffer buffer = new StringBuffer(256);


        en = _replyLines.elements();
        while (en.hasMoreElements())
        {
            buffer.append((String)en.nextElement());
            buffer.append(SocketClient.NETASCII_EOL);
        }


        return buffer.toString();
    }

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