Help.java

package node;

import java.util.HashMap;
import java.util.Map;

public class Help {

    static class Person {

        private String name;
        private int age;
        private String address;

        Person(String name, int age, String address) {
            this.name = name;
            this.age = age;
            this.address = address;
        }
    }


    private Map<String, Person> details = new HashMap<>();

    public void printWithHashMap(String name, int age, String address) {

        details.put("key 1", new Person(name, age, address));
        details.put("key 2", new Person(name, age, address));
        details.put("key 3", new Person(name, age, address));
        details.put("key 4", new Person(name, age, address));


        System.out.println(details.size());
        System.out.println(details.keySet() + " Keys");

        //TODO: get the actual values not the addresses
        System.out.println(details.values().toString() + " Values");
        // out-put
        /*[node.Help$Person@3cb5cdba,
          node.Help$Person@56cbfb61,
          node.Help$Person@1134affc,
          node.Help$Person@d041cf] Values*/

    }


    public static void main(String[] args) {
        Help h = new Help();
        h.print();
    }

    public void print() {
        printWithHashMap("Jack", 20, "-- drive");
    }

}
/*
 * please help here i am stuck i am trying to get the values from the map*/