[JAVA] Map 활용 연습

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class Main {

	public static void main(String[] args) {

		List<Map<String, Object>> testlist = new ArrayList<Map<String,Object>>();
		Map<String, Object> testMap1 = new HashMap<>();
		
		testMap1.put("id", 1);
		testMap1.put("regDate", "2020-12-12 12:12:12");
		testMap1.put("title", "제목1");
		testlist.add(testMap1);
		
		Map<String, Object> testMap2 = new HashMap<>();
		testMap2.put("id", 2);
		testMap2.put("regDate", "2020-12-12 12:12:12");
		testMap2.put("title", "제목2");
		testlist.add(testMap2);
		
		

		int article1Id = (int)testlist.get(0).get("id");
		System.out.println("id : " + article1Id);
		String article1regDate = (String)testlist.get(0).get("regDate");
		System.out.println("regDate : " + article1regDate);
		String article1title = (String)testlist.get(0).get("title");
		System.out.println("title : " + article1title);
		
		int article2Id = (int)testlist.get(1).get("id");
		System.out.println("id : " + article2Id);
		String article2regDate = (String)testlist.get(1).get("regDate");
		System.out.println("regDate : " + article2regDate);
		String article2title = (String)testlist.get(1).get("title");
		System.out.println("title : " + article2title);
		
		

		
	}

}