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.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.Statement;

public class Main {
    private static final String DRIVER = "com.mysql.jdbc.Driver";

    private static final String URL = "jdbc:mysql://localhost/testdb";

    private static final String USERNAME = "root";

    private static final String PASSWORD = "";

    public static void main(String[] args) throws Exception {

        Class.forName(DRIVER);
        Connection connection = DriverManager.getConnection(URL, USERNAME, PASSWORD);

        Statement statement = connection.createStatement();
        String query = "SELECT stock_id, name, price FROM stocks";
        ResultSet resultSet = statement.executeQuery(query);

        ResultSetMetaData metadata = resultSet.getMetaData();
        int precision = metadata.getPrecision(3);
        int scale = metadata.getScale(3);

        System.out.println("Precision: " + precision);
        System.out.println("Scale    : " + scale);
    }
}