Create libraryservice.java

Author: KercX

src/libraryservice.java

@@ -0,0 +1,22 @@
+package com.javabooks;
+
+import java.util.List;
+
+public interface LibraryService {
+
+    void addBook(Book book);
+
+    void removeBook(String isbn);
+
+    List<Book> listBooks();
+
+    List<Book> searchByTitle(String title);
+
+    List<Book> searchByAuthor(String author);
+
+    Book findByIsbn(String isbn);
+
+    void borrowBook(String isbn);
+
+    void returnBook(String isbn);
+}