Example usage for java.lang StringBuffer StringBuffer

Introduction

In this page you can find the example usage for java.lang StringBuffer StringBuffer.

Prototype

public StringBuffer(CharSequence seq) 

Source Link

Document

Constructs a string buffer that contains the same characters as the specified CharSequence .

Usage

From source file:Main.java

public static void main(String args[]) {
    Set set = new HashSet();
    Set set2 = new HashSet();
    StringBuffer buff1 = new StringBuffer("Irish Setter");
    StringBuffer buff2 = new StringBuffer("Irish Setter");
    set.add(buff1);//w ww  .  j  a  v  a 2 s  . co m
    set2.add(buff2);
    System.out.println(set.addAll(set2));
    System.out.println(set.addAll(set));
}

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From source file:MainClass.java

public static void main(String args[]) {
    StringBuffer sb = new StringBuffer("Hello");
    System.out.println("buffer before = " + sb);
    System.out.println("charAt(1) before = " + sb.charAt(1));
    sb.setCharAt(1, 'i');
    System.out.println("buffer after = " + sb);
    System.out.println("charAt(1) after = " + sb.charAt(1));

}

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From source file:TransformerExampleV1.java

public static void main(String args[]) {
    Transformer transformer = TransformerUtils.invokerTransformer("append", new Class[] { String.class },
            new Object[] { " a Transformer?" });
    Object newObject = transformer.transform(new StringBuffer("Are you"));
    System.err.println(newObject);
}

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From source file:ReverseConsoleInput.java

public static void main(String args[]) throws Exception {
    InputStreamReader isr = new InputStreamReader(System.in);
    BufferedReader br = new BufferedReader(isr);

    // Read and process lines from console
    String s;//www. j ava2  s .c om
    while ((s = br.readLine()) != null) {
        StringBuffer sb = new StringBuffer(s);
        sb.reverse();
        System.out.println(sb);
    }
    isr.close();
}

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From source file:ImmutableStrings.java

public static void main(String[] args) {
    String foo = "foo";
    String s = "abc" + foo + "def" + Integer.toString(47);
    System.out.println(s);//from w  ww .  j ava2 s  .  co m
    // The "equivalent" using StringBuffer:
    StringBuffer sb = new StringBuffer("abc"); // Creates String!
    sb.append(foo);
    sb.append("def"); // Creates String!
    sb.append(Integer.toString(47));
    System.out.println(sb);

}

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From source file:StringIOApp.java

public static void main(String args[]) throws IOException {
    StringWriter outStream = new StringWriter();
    String s = "This is a test.";
    for (int i = 0; i < s.length(); ++i)
        outStream.write(s.charAt(i));/*from w ww  .j  ava 2s . com*/
    System.out.println("outstream: " + outStream);
    System.out.println("size: " + outStream.toString().length());
    StringReader inStream;
    inStream = new StringReader(outStream.toString());
    int ch = 0;
    StringBuffer sb = new StringBuffer("");
    while ((ch = inStream.read()) != -1)
        sb.append((char) ch);
    s = sb.toString();
    System.out.println(s.length() + " characters were read");
    System.out.println("They are: " + s);
}

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From source file:Main.java

public static void main(String args[]) throws IOException {
    CharArrayWriter outStream = new CharArrayWriter();
    String s = "This is a test.";
    for (int i = 0; i < s.length(); ++i)
        outStream.write(s.charAt(i));/*w ww . ja  v  a2  s.c  o  m*/
    System.out.println("outstream: " + outStream);
    System.out.println("size: " + outStream.size());
    CharArrayReader inStream;
    inStream = new CharArrayReader(outStream.toCharArray());
    int ch = 0;
    StringBuffer sb = new StringBuffer("");
    while ((ch = inStream.read()) != -1)
        sb.append((char) ch);
    s = sb.toString();
    System.out.println(s.length() + " characters were read");
    System.out.println("They are: " + s);
}

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From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Document document = new Document(PageSize.A4);
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
    document.open();//  ww w.  j a v  a2s  . c o m
    PdfContentByte cb = writer.getDirectContent();
    StringBuffer sb = new StringBuffer(1024);
    BufferedReader reader = new BufferedReader(new FileReader("a.txt"));
    int c;
    while ((c = reader.read()) > -1) {
        sb.append((char) c);
    }
    reader.close();
    ColumnText ct = new ColumnText(cb);
    ct.setSimpleColumn(new Phrase(sb.toString()), 36, 36, PageSize.A4.width() - 36, PageSize.A4.height() - 36,
            18, Element.ALIGN_JUSTIFIED);
    int status = ColumnText.START_COLUMN;
    while (ColumnText.hasMoreText(status)) {
        status = ct.go();
        ct.setYLine(PageSize.A4.height() - 36);
        document.newPage();
    }
    document.close();
}

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From source file:FileDialogMultipleFileNameSelection.java

public static void main(String[] args) {
    Display display = new Display();
    final Shell shell = new Shell(display);

    FileDialog dlg = new FileDialog(shell, SWT.MULTI);
    Collection files = new ArrayList();
    if (dlg.open() != null) {
        String[] names = dlg.getFileNames();
        for (int i = 0, n = names.length; i < n; i++) {
            StringBuffer buf = new StringBuffer(dlg.getFilterPath());
            if (buf.charAt(buf.length() - 1) != File.separatorChar)
                buf.append(File.separatorChar);
            buf.append(names[i]);/*ww  w . ja  v  a  2  s .com*/
            files.add(buf.toString());
        }
    }
    System.out.println(files);
    display.dispose();

}

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From source file:CreateTableWithAllDataTypesInMySQL.java

public static void main(String[] args) throws Exception {
    PreparedStatement pstmt = null;
    Connection conn = null;/* ww  w. j  ava  2 s  . c o m*/
    try {
        StringBuffer sql = new StringBuffer("CREATE TABLE tableWithAllTypes(");
        sql.append("column_boolean       BOOL, "); // boolean
        sql.append("column_byte          TINYINT, "); // byte
        sql.append("column_short         SMALLINT, "); // short
        sql.append("column_int           INTEGER, "); // int
        sql.append("column_long          BIGINT, "); // long
        sql.append("column_float         FLOAT, "); // float
        sql.append("column_double        DOUBLE PRECISION, "); // double
        sql.append("column_bigdecimal    DECIMAL(13,0), "); // BigDecimal
        sql.append("column_string        VARCHAR(254), "); // String
        sql.append("column_date          DATE, "); // Date
        sql.append("column_time          TIME, "); // Time
        sql.append("column_timestamp     TIMESTAMP, "); // Timestamp
        sql.append("column_asciistream1  TINYTEXT, "); // Clob ( 2^8 bytes)
        sql.append("column_asciistream2  TEXT, "); // Clob ( 2^16 bytes)
        sql.append("column_asciistream3  MEDIUMTEXT, "); // Clob (2^24 bytes)
        sql.append("column_asciistream4  LONGTEXT, "); // Clob ( 2^32 bytes)
        sql.append("column_blob1         TINYBLOB, "); // Blob ( 2^8 bytes)
        sql.append("column_blob2         BLOB, "); // Blob ( 2^16 bytes)
        sql.append("column_blob3         MEDIUMBLOB, "); // Blob ( 2^24 bytes)
        sql.append("column_blob4         LONGBLOB)"); // Blob ( 2^32 bytes)

        conn = getConnection();
        pstmt = conn.prepareStatement(sql.toString());
        pstmt.executeUpdate();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        conn.close();
    }
}

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