Inserting JavaDoc to delete credential

src/main/java/CredentialRepository.java

@@ -81,13 +81,11 @@ 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
+    /**
+     * Function to update userpassword, assuming we already know the userid
+     * @param index
+     * @param newPassword
      */
-
-
     @Override
     public void updatePassword(int index, String newPassword) {
 
@@ -101,6 +99,12 @@ public class CredentialRepository implements CredentialRepositoryInterface{
 
     }
 
+
+    /**
+     * Function to update username analoge to updatePassword
+     * @param index
+     * @param newUsername
+     */
     public void updateUsername(int index, String newUsername){
 
         try{
@@ -112,6 +116,11 @@ public class CredentialRepository implements CredentialRepositoryInterface{
         }
     }
 
+    /**
+     * Deletion function for credentials
+     * Will immediately delete - double check for user permission
+     * @param index
+     */
     @Override
     public void delete(int index) {