Restructures repository class and interface

src/main/java/CredentialRepository.java

@@ -23,16 +23,6 @@ public class CredentialRepository implements CredentialRepositoryInterface{
         return this.getListSize();
     }
 
-    @Override
-    public void edit() {
-
-    }
-
-    @Override
-    public void delete() {
-
-    }
-
     @Override
     public Credential getCredentialsViaName(String needle) {
 
@@ -62,6 +52,28 @@ public class CredentialRepository implements CredentialRepositoryInterface{
 
     }
 
+    /*
+            The next 3 functions assume you already have successfully
+            pulled a credential from the repository and now want to edit it.
+            Thus, these functions require you to pass the desired credential's index
+     */
+
+
+    @Override
+    public void updatePassword(int index) {
+
+    }
+
+    public void updateUsername(int index){
+
+    }
+
+    @Override
+    public void delete(int index) {
+
+    }
+
+
     private int getListSize()
     {
         return this.credentials.size();

src/main/java/CredentialRepositoryInterface.java

@@ -1,9 +1,10 @@
 public interface CredentialRepositoryInterface {
 
     int createNewCredential(String name, String password);
-    void edit();
-    void delete();
     Credential getCredentialsViaName(String needle);
     Credential getCredentialsViaId(int id);
+    void updatePassword(int index);
+    void updateUsername(int index);
+    void delete(int index);
 
 }