DONE

.idea/workspace.xml

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PhoneBook.java

 public class PhoneBook {
     private String phoneNumber;
     private String name;
+    private Map<String,String> input;
 
-    private Map<String,String> input = new TreeMap<String,String>();
-
-    public static void main(String [] args){
-
-    }
+ 
 
     public PhoneBook(){
-        this.input = new TreeMap<String, String>();
+        input = new TreeMap<String,String>();
     }
 
     public void display(){
-        if(this.input.containsKey(name)){
-            for(Map.Entry<String,String> input: input.entrySet()){
-
-                String value = input.getValue();
-                String key = input.getKey();
+        
+        for(Object keyValue:input.keySet()){
+            System.out.println("Key: " + keyValue + ". Value: " + input.get(keyValue));
             }
-
-        }
     }
 
-    public void remove(String name){
-        this.input.remove(name);
+    public String remove(String name){
+        return input.remove(name);
     }
 
     public void AddInput(String name,String phoneNumber){
-        this.input.put(name,phoneNumber);
+        input.put(name,phoneNumber);
+    }
+
+    public String lookup(String name){
+        String value = input.get(name);
+        return value;
+    }
+
+    public String reverseLookup(String name,String phoneNumber){
+        String value = "";
+        if(input.containsValue(phoneNumber)){
+            value = phoneNumber;
+        }
+        return value;
     }
 }

PhoneBookTest.java

-
-
 import static org.junit.Assert.*;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
-
+import java.util.*;
 /**
  * The test class PhoneBookTest.
  *
  */
 public class PhoneBookTest
 {
+    PhoneBook phoneBook = new PhoneBook();
+    public Map<String,String> input = new TreeMap<String,String>();
     /**
      * Default constructor for test class PhoneBookTest
      */
     {
         PhoneBook phoneBook = new PhoneBook();
     }
+
     @Test
     public void testAddingPhoneNumber(){
-        PhoneBook phoneBook = new PhoneBook();
-        String name = "Khalil";
-        String phoneNumber = "215-555-555";
-        String expected = name + phoneNumber;
         
-        phoneBook.AddInput(name,phoneNumber);
+        input.put("Amy","232-323-3233");
         
+        int expectedSize = 1;
+        
+        int actual1 = input.size();
+
+        //When
+         assertEquals(expectedSize,actual1);
     }
 
+    @Test
+    public void testRemovingPhoneNumber(){
+        //Given
+       
+        input.put("Amy","232-323-3233");
+        //Then
+        String expected = null;
+        String actual = phoneBook.remove("Amy");
+
+        //When
+        assertEquals(expected,actual);
+    }
+    
+    @Test
+    public void testLookUp(){
+    
+        input.put("Amy","232-323-3233");
+        input.put("John","243-567-9963");
+        input.put("Brian","555-555-5555");
+        
+        
+        String expected = "Amy"+"232-323-3233";
+        boolean key = false;
+        if(input.containsKey("Amy")){
+                key = true; 
+            }
+            assertTrue(key);
+    }
+     @Test
+    public void testReverseLookUp(){
+    
+        input.put("Amy","232-323-3233");
+        input.put("John","243-567-9963");
+        input.put("Brian","555-555-5555");
+        
+        
+        String expected = "Amy"+"232-323-3233";
+        boolean value = false;
+        if(input.containsValue("232-323-3233")){
+                value = true; 
+            }
+            assertTrue(value);
+    }
 }

package.bluej

 dependency1.type=UsesDependency
 editor.fx.0.height=722
 editor.fx.0.width=800
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-editor.fx.0.y=23
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 objectbench.height=101
 objectbench.width=461
 package.divider.horizontal=0.6