Main.java Source code

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.ResultSetMetaData;
import java.sql.Statement;

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");

        ResultSetMetaData rsmd = rs.getMetaData();

        int numCols = rsmd.getColumnCount();

        System.out.print("\t");
        for (int i = 1; i <= numCols; i++) {
            System.out.println(rsmd.getColumnLabel(i));
        }

        System.out.print("\nAuto Increment\t");
        for (int i = 1; i <= numCols; i++) {
            System.out.println(rsmd.isAutoIncrement(i));
        }
        for (int i = 1; i <= numCols; i++) {

            System.out.println(rsmd.isCaseSensitive(i));
        }
        System.out.print("\nSearchable\t");
        for (int i = 1; i <= numCols; i++) {

            System.out.println(rsmd.isSearchable(i));
        }
        System.out.print("\nCurrency\t");
        for (int i = 1; i <= numCols; i++) {
            System.out.println(rsmd.isCurrency(i));
        }
        System.out.print("\nAllows nulls\t");
        for (int i = 1; i <= numCols; i++) {

            System.out.println(rsmd.isNullable(i));
        }
        System.out.print("\nSigned\t");
        for (int i = 1; i <= numCols; i++) {

            System.out.println(rsmd.isSigned(i));
        }
        System.out.print("\nRead only\t");
        for (int i = 1; i <= numCols; i++) {

            System.out.println(rsmd.isReadOnly(i));
        }
        System.out.print("\nWritable\t");
        for (int i = 1; i <= numCols; i++) {

            System.out.print(rsmd.isWritable(i));
        }
        System.out.print("\nDefinitely Writable\t");
        for (int i = 1; i <= numCols; i++) {

            System.out.println(rsmd.isDefinitelyWritable(i));
        }

        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", "");
    }
}