JAVA Program

Be sure to include all names (Official names) worked on the solution to receive grades.

• Write a method isUnique that accepts a Map from strings to strings as a parameter and returns true if no two keys map to the same value (and false if any two or more keys do map to the same value).
• For example, calling your method on the following map would return true: {Marty=Stepp, Stuart=Reges, Jessica=Miller, Amanda=Camp, Hal=Perkins}
• Calling it on the following map would return false, {Kendrick=Perkins, Stuart=Reges, Jessica=Miller, Bruce=Reges, Hal=Perkins}
• The empty map is considered to be unique, so your method should return true if passed an empty map.

public static boolean isUnique(Map map) { Set values = new HashSet(); for (String value : map.values()) { if (values.contains(value)) { return false; // duplicate } else { values.add(value); } } return true; }

this is my code but it comes out false

we need true for boolean

is this way totally wrong? can you make the correct code?