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import java.util.HashMap;import java.util.Map;public class TestHashMap { public static void main(String[] args) { Map<String, Integer> kujutus = new HashMap<>(); kujutus.put("A", 1); kujutus.put("B", 2); kujutus.put("C", 3); System.out.println(kujutus.keySet()); }}
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