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package ch04;

import java.util.HashMap;

import java.util.Map;

public class MapExample {

public static void main(String[] args) {

Map<String, Integer> map = new HashMap<>();

map.put("a", 1);

map.put("b", 2);

// Map.Entry로 순회하여 내용 출력

for (Map.Entry<String, Integer> entry : map.entrySet()) {

System.out.println(entry.getKey() + " : " + entry.getValue());

}

}

}