Database connection between android and sql server is working for andriod version kikat and lower, but it works for heigher version.

private String user = "sa";
    private String password = "hello@12345";
    private String database = "test";
    private String server = "192.168.1.89";
    private String ConnectionURL;

connectionHelper(user,password,database,server);

private Connection connectionHelper(String user, String password, String database, String server){
        StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
      StrictMode.setThreadPolicy(policy);

        try
        {
            try {
                Class.forName("net.sourceforge.jtds.jdbc.Driver").newInstance();
            } catch (InstantiationException e) {
                e.printStackTrace();
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            }
            ConnectionURL = "jdbc:jtds:sqlserver://" + server + ";"
                    + "databaseName=" + database + ";user=" + user
                    + ";password=" + password + ";";

            try
            {
                connection = DriverManager.getConnection(ConnectionURL);
                if( connection != null )
                {
                    Log.d("TAG", "Connected To SQLServer");
                }
                else {
                    Log.d("TAG", "Error in Connecting To SQLServer");
                }
            } catch (SQLException e) {
       e.printStackTrace();
            }
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }

        return connection;
    }