From 99c65c0f1d63ab2d55114c37b84e1da2f6cd5b27 Mon Sep 17 00:00:00 2001
From: Paul Rauser <paulr@Pauls-Air.fritz.box>
Date: Tue, 3 Sep 2024 17:13:00 +0200
Subject: [PATCH] chore: create clean task branch
---
src/phonebook/.gitkeep | 0
src/phonebook/App.java | 32 ------
src/phonebook/PhoneBook.java | 144 --------------------------
src/phonebook/PhoneBookException.java | 20 ----
4 files changed, 196 deletions(-)
create mode 100644 src/phonebook/.gitkeep
delete mode 100644 src/phonebook/App.java
delete mode 100644 src/phonebook/PhoneBook.java
delete mode 100644 src/phonebook/PhoneBookException.java
diff --git a/src/phonebook/.gitkeep b/src/phonebook/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/src/phonebook/App.java b/src/phonebook/App.java
deleted file mode 100644
index 1ff325c..0000000
--- a/src/phonebook/App.java
+++ /dev/null
@@ -1,32 +0,0 @@
-package phonebook;
-
-public class App {
- public static void main(String... args) {
- PhoneBook b1 = new PhoneBook();
-
- try {
- b1.createContact("Michi", 111, 888, 999);
- b1.createContact("Martin", 222);
- b1.createContact("Michi", 333);
- b1.createContact("Martin", 444);
- } catch (Exception e) {
- e.printStackTrace();
- }
-
- System.out.println("Retrieve name and other numbers of person with number 222");
- System.out.println("Name: " + b1.getPerson(222) + " Numbers: " + b1.getPhoneNumbers(b1.getPerson(222)));
- System.out.println();
- System.out.println("Retrieve entire book");
- System.out.println(b1.getBook());
- System.out.println();
-
- System.out.println("Delete numbers of Michi and print them:");
- System.out.println(b1.deleteEntriesOfAPerson("Michi"));
- System.out.println();
- System.out.println("Delete phone number 222 and print owner name:");
- System.out.println(b1.deleteEntryByPhoneNumber(222));
- System.out.println();
- System.out.println("Retrieve entire book");
- System.out.println(b1.getBook());
- }
-}
diff --git a/src/phonebook/PhoneBook.java b/src/phonebook/PhoneBook.java
deleted file mode 100644
index 0272e42..0000000
--- a/src/phonebook/PhoneBook.java
+++ /dev/null
@@ -1,144 +0,0 @@
-package phonebook;
-
-import java.util.*;
-
-/**
- * An object that manages contacts. For this purpose it is using the TreeMap
- * implementation.
- * A phone book cannot contain duplicate phone numbers (<strong>K</strong>eys),
- * but it can contain duplicate persons (<strong>V</strong>alues).
- */
-public class PhoneBook {
- private SortedMap<Integer, String> book;
-
- /**
- * Initializes the variable {@link book} in the constructor.
- */
- public PhoneBook() {
- book = new TreeMap<Integer, String>();
- }
-
- /**
- * Creates a new contact entry in the phone book.
- * Generates for every key element <tt>phoneNumbers</tt> a map entry.
- * If even a single phone number is already in use in the phone book this method
- * will throw a {@link PhoneBookException}.
- * No numbers should be added at all, if a {@link PhoneBookException} is thrown.
- *
- * @param person name of the contact person
- * @param phoneNumbers all phone numbers of the contact person
- * @throws PhoneBookException if an entered phone number is already in use. The
- * exception message contains the related number and
- * the person's name which is using this number.
- */
- public void createContact(String person, Integer... phoneNumbers) throws PhoneBookException {
- for (Integer num : phoneNumbers) {
- if (book.containsKey(num)) {
- throw new PhoneBookException("Number '" + num + "' is already used by " + book.get(num));
- }
- }
- for (Integer num : phoneNumbers) {
- book.put(num, person);
- }
- }
-
- /**
- * Returns the person's name to which the specified phone number is mapped,
- * or {@code null} if this phone book contains no mapping for the phone number.
- *
- * @param phoneNumber of the person
- * @return person's name
- */
- public String getPerson(Integer phoneNumber) {
- return book.get(phoneNumber);
- }
-
- /**
- * Returns a set of all phone numbers of a specified person.
- *
- * @param person specified person
- * @return all phone numbers of the person
- */
- public Set<Integer> getPhoneNumbers(String person) {
- Set<Integer> foundPhoneNumbers = new HashSet<Integer>();
-
- for (Map.Entry<Integer, String> entry : book.entrySet()) {
- if (entry.getValue().equals(person)) {
- foundPhoneNumbers.add((Integer) entry.getKey());
- }
- }
- return foundPhoneNumbers;
- }
-
- /**
- * Deletes the phone book entry which matches the specified phone number and
- * returns the persons's name of the deleted entry,
- * or {@code null} if this phone book contains no mapping for the phone number.
- *
- * @param phoneNumber of the entry which will be deleted
- * @return the person's name of the deleted entry
- */
- public String deleteEntryByPhoneNumber(Integer phoneNumber) {
- return book.remove(phoneNumber);
- }
-
- /**
- * Deletes all phone book entries of a specified person.
- *
- * @param person of the entries which will be deleted
- * @return the phone numbers of the deleted entry
- */
- public Set<Integer> deleteEntriesOfAPerson(String person) {
-
- Set<Integer> removedPhoneNumbers = new HashSet<Integer>();
-
- for (Map.Entry<Integer, String> entry : book.entrySet()) {
- if (entry.getValue().equals(person)) {
- removedPhoneNumbers.add((Integer) entry.getKey());
- }
- }
- book.keySet().removeAll(removedPhoneNumbers);
- return removedPhoneNumbers;
- }
-
- /**
- * Deletes all entries of the phone book.
- */
- public void clearPhoneBook() {
- book.clear();
- }
-
- /**
- * Returns the map of the phone book.
- *
- * @return map with contact entries
- */
- public SortedMap<Integer, String> getBook() {
- return book;
- }
-
- @Override
- public int hashCode() {
- final int prime = 31;
- int result = 17;
- result = prime * result + ((book == null) ? 0 : book.hashCode());
- return result;
- }
-
- @Override
- public boolean equals(Object obj) {
- if (this == obj)
- return true;
- if (obj == null)
- return false;
- if (getClass() != obj.getClass())
- return false;
- PhoneBook other = (PhoneBook) obj;
- if (book == null) {
- if (other.book != null)
- return false;
- } else if (!book.equals(other.book))
- return false;
- return true;
- }
-}
\ No newline at end of file
diff --git a/src/phonebook/PhoneBookException.java b/src/phonebook/PhoneBookException.java
deleted file mode 100644
index b21d81f..0000000
--- a/src/phonebook/PhoneBookException.java
+++ /dev/null
@@ -1,20 +0,0 @@
-package phonebook;
-/**
- * Thrown to indicate that something in a method of a {@link PhoneBook} has been failed.
- */
-public class PhoneBookException extends Exception{
- /**
- *
- */
- private static final long serialVersionUID = -8861060650714370603L;
-
- /**
- * Constructs an <code>PhoneBookException</code> with the
- * specified detail message.
- *
- * @param message the detail message.
- */
- public PhoneBookException(String message) {
- super(message);
- }
-}
\ No newline at end of file
--
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