How to get Table Column Names in Java using DatabaseMetadata?

Below Java code shows how to get Table Column name using DatabaseMetadata-
[java]
/****************************************************************************************
* Created on 05-2011 Copyright(c) https://kodehelp.com All Rights Reserved.
****************************************************************************************/
package com.kodehelp.javasql;

import java.sql.*;

/**
* Created by https://kodehelp.com
* Date: 5/9/11
*/
public class GetTableColumnNames {
public static void main(String[] args) throws SQLException, ClassNotFoundException {
final String driver = "oracle.jdbc.driver.OracleDriver";
final String url = "jdbc:oracle:thin:@HOST:PORT:SID";
final String USERNAME = "USERNAME";
final String PASSWORD = "PASSWORD";
Connection conn = null;
try{
Class.forName(driver); // load Oracle driver
conn = DriverManager.getConnection(url, USERNAME, PASSWORD);
DatabaseMetaData databaseMetaData = conn.getMetaData();

ResultSet resultSet = databaseMetaData.getColumns(null, null, "users", null);
while (resultSet.next()) {
String name = resultSet.getString("COLUMN_NAME");
String type = resultSet.getString("TYPE_NAME");
int size = resultSet.getInt("COLUMN_SIZE");
System.out.println("Column name: [" + name + "]; type: [" + type
+ "]; size: [" + size + "]");
}
}catch (ClassNotFoundException cnfEx){
throw cnfEx;
}catch (SQLException sqlEx){
throw sqlEx;
}finally{
if(conn!=null){
conn.close();
}
}
}
}
[/java]