From 14f771c385eaab6154f0eda6d87df926085be183 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Matilda=20S=C3=B6nnergaard?=
 <matilda.sonnergaard@se.experis.com>
Date: Wed, 8 Jan 2025 12:57:08 +0100
Subject: [PATCH] Complete core exercises

---
 .../java/com/booleanuk/core/Exercise.java     | 28 +++++++++++++++----
 1 file changed, 22 insertions(+), 6 deletions(-)

diff --git a/src/main/java/com/booleanuk/core/Exercise.java b/src/main/java/com/booleanuk/core/Exercise.java
index e1485c3..fbd2596 100644
--- a/src/main/java/com/booleanuk/core/Exercise.java
+++ b/src/main/java/com/booleanuk/core/Exercise.java
@@ -2,8 +2,10 @@
 
 import com.booleanuk.helpers.ExerciseBase;
 
+import java.lang.reflect.Array;
 import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.List;
 
 public class Exercise extends ExerciseBase {
     /*
@@ -48,7 +50,9 @@ public HashMap<String, String> createPerson() {
          in the createPerson method
      */
 
-
+    public String getValue(String key) {
+        return createPerson().get(key);
+    }
 
     /*
         TODO: 2. Create a method named hasKey that accepts two parameters:
@@ -58,7 +62,9 @@ public HashMap<String, String> createPerson() {
          in the provided HashMap
      */
 
-
+    public boolean hasKey(HashMap<String, String> map, String key) {
+        return map.containsKey(key);
+    }
 
     /*
         TODO: 3. Create a method named getValueOrDefault that accepts two parameters:
@@ -68,7 +74,13 @@ public HashMap<String, String> createPerson() {
          or -1 if the string provided is not a key in the HashMap
      */
 
-
+    public int getValueOrDefault(HashMap<String, Integer> map, String key) {
+        if (map.containsKey(key)) {
+            return map.get(key);
+        } else {
+            return -1;
+        }
+    }
 
     /*
         TODO: 4. Complete the method below
@@ -90,12 +102,16 @@ public ArrayList<String> buildSecretPhrase(ArrayList<Integer> numbers) {
         map.put(96, "nice");
         // Write your code below this comment...
 
-
-
+        ArrayList<String> secret = new ArrayList<>();
+        for (int n : numbers) {
+            if (map.containsKey(n)) {
+                secret.add(map.get(n));
+            }
+        }
 
         // ...and above this comment
 
         // Change the return statement below to return your actual ArrayList
-        return new ArrayList<String>();
+        return secret;
     }
 }