Example usage for java.lang Class forName

List of usage examples for java.lang Class forName

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Introduction

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

Prototype

@CallerSensitive
public static Class<?> forName(String className) throws ClassNotFoundException

Source Link

Document

Returns the Class object associated with the class or interface with the given string name.

Usage

From source file:UpdateableRs.java

public static void main(String[] args) throws Exception {
    Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
    Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:ORCL", "yourName", "mypwd");
    Statement stmt = conn.createStatement();
    stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE);
    ResultSet rs = stmt.executeQuery("SELECT ssn, name, salary FROM EMPLOYEES");
    printRs(rs);//www.  ja v  a2  s.c  o  m

    rs.beforeFirst();

    while (rs.next()) {
        double newSalary = rs.getDouble("salary") * 1.053;
        rs.updateDouble("salary", newSalary);
        rs.updateRow();
    }
    printRs(rs);
    conn.close();
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);

    String serverName = "127.0.0.1";
    String portNumber = "1433";
    String mydatabase = serverName + ":" + portNumber;
    String url = "jdbc:JSQLConnect://" + mydatabase;
    String username = "username";
    String password = "password";

    Connection connection = DriverManager.getConnection(url, username, password);
    String sql = "INSERT INTO my_table (col_string) VALUES(?)";
    PreparedStatement pstmt = connection.prepareStatement(sql);

    // Insert 10 rows
    for (int i = 0; i < 10; i++) {
        // Set the value
        pstmt.setString(1, "row " + i);

        // Insert the row
        pstmt.executeUpdate();/*from w  w  w  .j  a va2  s  .  c  o m*/
    }

}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);

    String serverName = "127.0.0.1";
    String portNumber = "1433";
    String mydatabase = serverName + ":" + portNumber;
    String url = "jdbc:JSQLConnect://" + mydatabase;
    String username = "username";
    String password = "password";

    Connection connection = DriverManager.getConnection(url, username, password);

    Statement stmt = connection.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY);
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);

    String serverName = "127.0.0.1";
    String portNumber = "1433";
    String mydatabase = serverName + ":" + portNumber;
    String url = "jdbc:JSQLConnect://" + mydatabase;
    String username = "username";
    String password = "password";

    Connection connection = DriverManager.getConnection(url, username, password);

    Statement stmt = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);

}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);

    String serverName = "127.0.0.1";
    String portNumber = "1433";
    String mydatabase = serverName + ":" + portNumber;
    String url = "jdbc:JSQLConnect://" + mydatabase;
    String username = "username";
    String password = "password";

    Connection connection = DriverManager.getConnection(url, username, password);
    Statement stmt = connection.createStatement();
    //     Column Name          SQLServer Type           Java Type
    String sql = "CREATE TABLE sqlserver_all_table(" + "col_boolean          BIT, " // boolean
            + "col_byte             TINYINT, " // byte
            + "col_short            SMALLINT, " // short
            + "col_int              INTEGER, " // int
            + "col_float            REAL, " // float
            + "col_double           DOUBLE PRECISION, " // double
            + "col_bigdecimal       DECIMAL(13,0), " // BigDecimal; can also be NUMERIC(p,s)
            + "col_string           VARCHAR(254), " // String
            + "col_date             DATETIME, " // Date
            + "col_time             DATETIME, " // Time
            + "col_timestamp        TIMESTAMP, " // Timestamp
            + "col_characterstream  TEXT, " // CharacterStream or AsciiStream (< 2 GBytes)
            + "col_binarystream     IMAGE)"; // BinaryStream (< 2 GBytes)

    stmt.executeUpdate(sql);//from www  . j a va2  s.c  o m
}

From source file:PrintResultSet.java

public static void main(String args[]) throws Exception {
    Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
    Connection con = DriverManager.getConnection("jdbc:odbc: Contacts");
    Statement stmt = con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE);
    ResultSet rs = stmt.executeQuery("SELECT Name,Description,Qty,Cost FROM Stock");
    ResultSetMetaData md = rs.getMetaData();

    if (rs.getConcurrency() == ResultSet.CONCUR_UPDATABLE)
        System.out.println("UPDATABLE");
    else//from   w  w w.j ava2  s. co m
        System.out.println("READ_ONLY");

    int nColumns = md.getColumnCount();
    for (int i = 1; i <= nColumns; i++) {
        System.out.print(md.getColumnLabel(i) + ((i == nColumns) ? "\n" : "\t"));
    }
    while (rs.next()) {
        rs.updateString("Street", "123 Main");
        rs.updateRow();
        for (int i = 1; i <= nColumns; i++) {
            System.out.print(rs.getString(i) + ((i == nColumns) ? "\n" : "\t"));
        }
    }
}

From source file:Main.java

public static void main(String[] args) throws ClassNotFoundException, SQLException {
    Class.forName("com.mysql.jdbc.Driver");
    Connection conn = DriverManager.getConnection("jdbc:mysql://localhost/booltest", "booltest", "booltest");
    conn.prepareStatement("create table booltest (id bigint, truefalse varchar(10));").execute();
    PreparedStatement stmt = conn.prepareStatement("insert into booltest (id, truefalse) values (?, ?);");
    stmt.setLong(1, (long) 123);
    stmt.setBoolean(2, true);/*from w w w  . j a  va 2s. co  m*/
    stmt.execute();
    stmt.setLong(1, (long) 456);
    stmt.setBoolean(2, false);
    stmt.execute();
    ResultSet rs = conn.createStatement().executeQuery("select id, truefalse from booltest");
    while (rs.next()) {
        System.out.println(rs.getLong(1) + " => " + rs.getBoolean(2));
    }
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);

    String serverName = "127.0.0.1";
    String portNumber = "1433";
    String mydatabase = serverName + ":" + portNumber;
    String url = "jdbc:JSQLConnect://" + mydatabase;
    String username = "username";
    String password = "password";

    Connection connection = DriverManager.getConnection(url, username, password);
    Statement stmt = connection.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
    ResultSet resultSet = stmt.executeQuery("SELECT * FROM my_table");

    // Retrieve the current values of the row from the database
    resultSet.refreshRow();//from  w  ww.  j  a va  2 s  . c  o  m
}

From source file:TestThinApp.java

public static void main(String args[]) throws ClassNotFoundException, SQLException {

    Class.forName("oracle.jdbc.driver.OracleDriver");
    //  DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());

    Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@dssw2k01:1521:orcl", "scott", "tiger");

    Statement stmt = conn.createStatement();
    ResultSet rset = stmt.executeQuery("select 'Hello Thin driver tester '||USER||'!' result from dual");
    while (rset.next())
        System.out.println(rset.getString(1));
    rset.close();/* www. j a  va 2  s.  c  o m*/
    stmt.close();
    conn.close();
}

From source file:Main.java

public static void main(String[] argv) throws Exception {

    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);

    String serverName = "127.0.0.1";
    String portNumber = "1433";
    String mydatabase = serverName + ":" + portNumber;
    String url = "jdbc:JSQLConnect://" + mydatabase;
    String username = "username";
    String password = "password";

    Connection connection = DriverManager.getConnection(url, username, password);

    Statement stmt = connection.createStatement();

    stmt.executeUpdate("DROP TABLE my_table");
}