Main.java Source code

Java tutorial

Introduction

Here is the source code for Main.java

Source

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.Calendar;
import java.util.TimeZone;

public class Main {
    public static void main(String[] args) throws Exception {
        Connection conn = getConnection();
        Statement st = conn.createStatement();

        st.executeUpdate("create table survey (id int,myDate DATE );");
        String INSERT_RECORD = "insert into survey(id, myDate) values(?, ?)";

        PreparedStatement pstmt = conn.prepareStatement(INSERT_RECORD);
        pstmt.setString(1, "1");
        java.sql.Date sqlDate = new java.sql.Date(new java.util.Date().getTime());
        pstmt.setDate(2, sqlDate);

        pstmt.executeUpdate();

        ResultSet rs = st.executeQuery("SELECT * FROM survey");

        Calendar cal = Calendar.getInstance();

        // get the TimeZone for "America/Los_Angeles"
        TimeZone tz = TimeZone.getTimeZone("America/Los_Angeles");
        cal.setTimeZone(tz);

        while (rs.next()) {
            // the JDBC driver will use the time zone information in
            // Calendar to calculate the date, with the result that
            // the variable dateCreated contains a java.sql.Date object
            // that is accurate for "America/Los_Angeles".
            java.sql.Date dateCreated = rs.getDate(2, cal);
            System.out.println(dateCreated);
        }

        rs.close();
        st.close();
        conn.close();
    }

    private static Connection getConnection() throws Exception {
        Class.forName("org.hsqldb.jdbcDriver");
        String url = "jdbc:hsqldb:mem:data/tutorial";

        return DriverManager.getConnection(url, "sa", "");
    }
}