Example usage for java.lang Class forName

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:Main.java

public static void main(String[] argv) throws Exception {
    Class.forName("com.mysql.jdbc.Driver");
    Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/jdbctutorial", "root", "root");
    con.setAutoCommit(false);// ww w  .  jav a 2 s .c  o  m
    String sql = "INSERT product VALUES(?,?)";
    PreparedStatement prest = con.prepareStatement(sql);
    prest.setString(1, "A");
    prest.setInt(2, 2002);
    prest.addBatch();
    prest.setString(1, "B");
    prest.setInt(2, 1998);
    prest.addBatch();
    prest.setString(1, "C");
    prest.setInt(2, 1980);
    prest.addBatch();
    prest.setString(1, "D");
    prest.setInt(2, 1975);
    prest.addBatch();
    int count[] = prest.executeBatch();
    con.commit();
    con.close();
}

From source file:Main.java

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

    Class.forName("com.mysql.jdbc.Driver");
    Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/jdbctutorial", "root", "root");

    Statement st = con.createStatement();
    ResultSet res = st.executeQuery("SELECT col_name  FROM mytable  ORDER BY col_name ASC");
    while (res.next()) {
        int col = res.getInt(1);
        System.out.println(col);//from w  ww. jav a2s.c o m
    }
}

From source file:Main.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 * from employee");
    rs.moveToInsertRow();/* w  w  w  .  j  a v a 2s  .c  o  m*/

    rs.updateInt(1, 150);
    rs.updateString("First_Name", "Nigel");
    rs.updateString("Last_Name", "Thornebury");

    rs.insertRow();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Class.forName("com.mysql.jdbc.Driver");
    Connection connection = DriverManager.getConnection("jdbc:mysql://localhost/testdb", "root", "");

    Statement statement = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
            ResultSet.CONCUR_READ_ONLY);
    ResultSet resultSet = statement.executeQuery("SELECT * FROM products");

    if (resultSet.isAfterLast()) {
        System.out.println("You are at the beginning of the result set.");
    }/*w w w.ja  v  a 2  s.com*/
    connection.close();
}

From source file:Main.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 * from employee");
    rs.moveToInsertRow();/*from  www. j a v  a  2 s  .  com*/

    rs.updateInt("Contact_ID", 150);
    rs.updateString("First_Name", "Nigel");
    rs.updateString("Last_Name", "Thornebury");

    rs.insertRow();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Class.forName("com.mysql.jdbc.Driver");
    Connection connection = DriverManager.getConnection("jdbc:mysql://localhost/testdb", "root", "");

    Statement statement = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
            ResultSet.CONCUR_READ_ONLY);
    ResultSet resultSet = statement.executeQuery("SELECT * FROM products");

    if (resultSet.isBeforeFirst()) {
        System.out.println("beginning");
    }/* www  . j  a va  2s. c om*/
    connection.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Class.forName("com.mysql.jdbc.Driver");
    Connection connection = DriverManager.getConnection("jdbc:mysql://localhost/testdb", "root", "");

    Statement statement = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
            ResultSet.CONCUR_READ_ONLY);
    ResultSet resultSet = statement.executeQuery("SELECT * FROM products");

    if (resultSet.isBeforeFirst()) {
        System.out.println("isBeforeFirst.");
    }//from  w  w w.j a v a2s  .  c  o m
    connection.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Class.forName("oracle.jdbc.driver.OracleDriver");
    Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@//server.local:1521/prod", "scott",
            "tiger");
    conn.setAutoCommit(false);//from ww w . j  ava  2  s.  c  om
    Statement stmt = conn.createStatement();
    ResultSet rset = stmt.executeQuery("select * from employee");
    while (rset.next()) {
        System.out.println(rset.getString(1));
    }
    stmt.close();
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    Class.forName("oracle.jdbc.driver.OracleDriver");
    System.out.println("Oracle driver registered");
    Connection conn = null;/*  w ww  . ja va  2s .  c  o m*/
    conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orclh", "scott", "tiger");

    Statement stmt = conn.createStatement();
    ResultSet r = stmt.executeQuery("Select * from emp");
    while (r.next()) {
        String str = r.getString("ename");
        System.out.println(str);
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Class myclass = Class.forName("java.lang.String");

    Method[] methods = myclass.getMethods();
    //Object object = myclass.newInstance();

    for (int i = 0; i < methods.length; i++) {
        System.out.println(methods[i].getName());
        //System.out.println(methods[i].invoke(object));
    }/*from  w w  w  .j av a 2 s.  c om*/
}