small java exercise

Hi,

I am working on this exercise and would be thankful if you folks
comment on it.

The requirement was as follows:

Create a MovieRating class that contains a private map with rating as
the key and minimum age as the value, populate this map when the class
is instantiated. Also include a method which takes two parameters,
rating and age and checks the minimum age in the map and returns true
or false to indicate whether or not a human with the specified age is
allowed to watch a movie with the specified rating.

My attempt is pasted below. I get a compiler error that says that I
have a missing return statement in getStatus. The return statements
that I have are in the if/else block. How can I solve this issue?
Also I am not sure about the Map?

Thanks
Ros

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

public class MovieRating {

    private Map humanMap = new HashMap();

    public MovieRating(){
        humanMap.put("G", 18);
        humanMap.put("PG", 16);
    }

    public boolean getStatus(String rating, int age){

        int minAge;
        minAge = Integer.getInteger((String) humanMap.get("PG"));

        if (age < minAge ){
            return false;
        }
        else if (age >= minAge){
            return true;
        }

    }

}