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");

    Statement st = con.createStatement();
    int n = st.executeUpdate("ALTER TABLE mytable ADD col int");
    System.out.println("Query OK, " + n + " rows affected");
}

From source file:Main.java

public static void main(String... args) throws Exception {
    Class<?> c = Class.forName("java.lang.String");
    Constructor[] allConstructors = c.getDeclaredConstructors();
    for (Constructor ctor : allConstructors) {

        Modifier.toString(ctor.getModifiers());

    }//w  w w .  j av a 2  s . c o m
}

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();
    int n = st.executeUpdate("ALTER TABLE mytable ADD UNIQUE( colName)");
    System.out.println("Query OK, " + n + " rows affected.");
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
    Statement stmt = DriverManager.getConnection("jdbc:odbc:employee").createStatement();
    ResultSet rs = stmt.executeQuery("select lastname, firstname, id from [Sheet1$]");
    while (rs.next()) {
        String lname = rs.getString(1);
        String fname = rs.getString(2);
        int id = rs.getInt(3);
        System.out.println(fname + " " + lname + "  id : " + id);
    }/* w  ww  . j av  a  2 s.co m*/
    rs.close();
    stmt.close();
}

From source file:Main.java

public static void main(String... args) throws Exception {
    Class<?> c = Class.forName("java.lang.String");
    Constructor[] allConstructors = c.getDeclaredConstructors();
    for (Constructor ctor : allConstructors) {
        int searchMod = Modifier.PRIVATE;
        int mods = accessModifiers(ctor.getModifiers());
        if (searchMod == mods) {
            System.out.println(ctor);
        }/*from   w w w  . j a  v a 2  s  . c  om*/
    }
}

From source file:Main.java

public static void main(String... args) throws Exception {
    Class<?> c = Class.forName("java.lang.String");
    Constructor[] allConstructors = c.getDeclaredConstructors();
    for (Constructor ctor : allConstructors) {
        int searchMod = Modifier.INTERFACE;
        int mods = accessModifiers(ctor.getModifiers());
        if (searchMod == mods) {
            System.out.println(ctor);
        }/*from   w ww .j a v  a2 s.co  m*/
    }
}

From source file:Main.java

public static void main(String... args) throws Exception {
    Class<?> c = Class.forName("java.lang.String");
    Constructor[] allConstructors = c.getDeclaredConstructors();
    for (Constructor ctor : allConstructors) {
        int searchMod = Modifier.VOLATILE;
        int mods = accessModifiers(ctor.getModifiers());
        if (searchMod == mods) {
            System.out.println(ctor);
        }//ww  w. j  a va2 s  .c o  m
    }
}

From source file:Main.java

public static void main(String[] args) {
    String name = "java.util.Date";
    try {/*w w  w .j  a va 2s  .com*/
        Class cl = Class.forName(name);
        printMethods(cl);
    } catch (ClassNotFoundException e) {
        System.out.println("Class not found.");
    }
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

    Properties prop = new Properties();
    prop.put("charSet", "iso-8859-7");
    prop.put("user", "your username");
    prop.put("password", "your password");

    // Connect to the database
    Connection con = DriverManager.getConnection("url", prop);

}

From source file:Main.java

public static void main(String... args) throws Exception {
    Class<?> c = Class.forName("java.lang.String");
    Constructor[] allConstructors = c.getDeclaredConstructors();
    for (Constructor ctor : allConstructors) {
        int searchMod = Modifier.STRICT;
        int mods = accessModifiers(ctor.getModifiers());
        if (searchMod == mods) {
            System.out.println(ctor);
        }//  ww w .  ja va  2 s  .co m
    }
}