(JAVA)해쉬맵

맵

//선언
HashMap<String, Integer> agesMap = new HashMap<>();

//agesMap에 값 추가
agesMap.put("철수", 20);
agesMap.put("영희", 40);
agesMap.put("영수", 50);

//제거
agesMap.remove("철수");

//호출
agesMap.get("영희");