Map

Author: raheemadamboev

src/TheMap.java

@@ -0,0 +1,26 @@
+import data.PersonModel;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class TheMap {
+
+    public static void main(String[] args) {
+
+        Map<Integer, PersonModel> persons = new HashMap<>();
+
+        persons.put(1, new PersonModel("Survivor", 15));
+        persons.put(2, new PersonModel("Eye of the Tiger", 25));
+        persons.put(3, new PersonModel("Europe", 17));
+
+        System.out.println(persons);
+        System.out.println(persons.keySet());
+        System.out.println(persons.entrySet());
+
+        System.out.println(persons.containsKey(5));
+        System.out.println(persons.values());
+        System.out.println(persons.getOrDefault(5, new PersonModel("Dick", 12)));
+        System.out.println(persons.remove(3));
+        System.out.println(persons.size());
+    }
+}