ciip-grp8-password-manager/src/main/java/PasswordManagerInterface.java

import java.io.InputStream;
import java.io.OutputStream;

public interface PasswordManagerInterface {
    public static void main(String[] args) {
    };
    public void listVaults();
    public void openVault();
    public void showMenu(InputStream inputStream, OutputStream outputStream);
}