Access mysql data base from another system using java
public void dbconnection() {

        String name = "";
        String port = "3306";
        String user = "systech";
        String pass = "systech";
        String dbname = "cascade_demo";
        String host="192.168.1.61";

        try {

            Class.forName("com.mysql.jdbc.Driver");

              String url = "jdbc:mysql://"+host+":"+  port + "/" + dbname;
            System.out.println("URL:" + url);
            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
            Connection con = DriverManager.getConnection(url, user, pass);
            String qry2 = "select * from item_master";
            Statement st = con.createStatement();
            ResultSet rs = st.executeQuery(qry2);
            while (rs.next()) {

                name = rs.getString(1);
                System.out.println("Name:" + name);

            }


            rs.close();
            st.close();
            con.close();


        } catch (Exception e) {
            System.out.println("Exception:" + e);
        }
    }

public void dbconnection() {

    String name = "";
    String port = "3306";
    String user = "systech";
    String pass = "systech";
    String dbname = "cascade_demo";
    String host="192.168.1.61";

    try {
        String url = "jdbc:mysql://"+host+":"+  port + "/" + dbname;
        Class.forName("com.mysql.jdbc.Driver").newInstance ();
        Connection con = DriverManager.getConnection(url, user, pass);
        String qry2 = "select * from item_master";
        Statement st = con.createStatement();
        ResultSet rs = st.executeQuery(qry2);
        while (rs.next()) {
            System.out.println("Name:" + rs.getString(1));
        }

        rs.close();
        st.close();
        con.close();


    } catch (Exception e) {
        System.out.println("Exception:" + e);
    }
}

CommunicationsException: Communications link failure

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

Class.forName("com.mysql.jdbc.Driver");

} finally {
    try {
         rs.close();
         st.close();
         con.close();

    } catch( Exception e ) {
         e.printStackTrace();
    }
}