Linda Do

src/main/java/com/booleanuk/core/Exercise.java

@@ -48,6 +48,9 @@ public HashMap<String, String> createPerson() {
          in the createPerson method
      */
 
+    public String getValue(String key){
+        return createPerson().get(key);
+    }
 
 
     /*
@@ -57,7 +60,9 @@ public HashMap<String, String> createPerson() {
          The method must return a boolean that represents whether the string provided exists as a key
          in the provided HashMap
      */
-
+    public boolean hasKey(HashMap<String,String> map, String string){
+        return map.containsKey(string);
+    }
 
 
     /*
@@ -67,7 +72,12 @@ public HashMap<String, String> createPerson() {
          The method must use the string provided to return the integer contained in the provided HashMap,
          or -1 if the string provided is not a key in the HashMap
      */
-
+    public int getValueOrDefault (HashMap<String,Integer> map, String string) {
+        if(map.get(string) != null){
+            return map.get(string);
+        }
+        return -1;
+    }
 
 
     /*
@@ -89,13 +99,16 @@ public ArrayList<String> buildSecretPhrase(ArrayList<Integer> numbers) {
         map.put(7, "muse");
         map.put(96, "nice");
         // Write your code below this comment...
+        ArrayList<String> list = new ArrayList<>();
 
-
-
-
+        for (Integer number : numbers) {
+            if (map.get(number) != null) {
+                list.add(map.get(number));
+            }
+        }
         // ...and above this comment
 
         // Change the return statement below to return your actual ArrayList
-        return new ArrayList<String>();
+        return list;
     }
 }

src/test/java/com/booleanuk/core/ExerciseTest.java

@@ -6,7 +6,7 @@
 import java.util.ArrayList;
 import java.util.HashMap;
 
-class ExerciseTest {
+class  ExerciseTest {
     Exercise exercise;
 
     public ExerciseTest() {