HR자바 Java Factory Pattern 문서 원본 보기

==개요==
;HR자바 Java Factory Pattern
* https://www.hackerrank.com/challenges/java-factory/problem

{{HR자바 헤더}}
{{HR자바 Advanced}}
|}

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<syntaxhighlight lang='java'>
import java.util.*;
import java.security.*;
interface Food {
    public String getType();
}
class Pizza implements Food {
    public String getType() {
        return "Someone ordered a Fast Food!";
    }
}
class Cake implements Food {
    public String getType() {
        return "Someone ordered a Dessert!";
    }
}
class FoodFactory {
    public Food getFood(String order) {
</syntaxhighlight>
<syntaxhighlight lang='java'>
        //Write your code here
        if( order.equals("pizza") ) return new Pizza();
        if( order.equals("cake") ) return new Cake();
        return null;
</syntaxhighlight>
<syntaxhighlight lang='java'>
public class Solution {
    public static void main(String args[]){
        Do_Not_Terminate.forbidExit();
        try{
            Scanner sc=new Scanner(System.in);
            //creating the factory
            FoodFactory foodFactory = new FoodFactory();
            //factory instantiates an object
            Food food = foodFactory.getFood(sc.nextLine());
            System.out.println("The factory returned "+food.getClass());
            System.out.println(food.getType());
        }
        catch (Do_Not_Terminate.ExitTrappedException e) {
            System.out.println("Unsuccessful Termination!!");
        }
    }
}
class Do_Not_Terminate {
    public static class ExitTrappedException extends SecurityException {
        private static final long serialVersionUID = 1L;
    }
    public static void forbidExit() {
        final SecurityManager securityManager = new SecurityManager() {
            @Override
            public void checkPermission(Permission permission) {
                if (permission.getName().contains("exitVM")) {
                    throw new ExitTrappedException();
                }
            }
        };
        System.setSecurityManager(securityManager);
    }
}
</syntaxhighlight>