From 7c1a0eb9e599a2b815ded91795f121f085695d04 Mon Sep 17 00:00:00 2001 From: TchockDonwood Date: Fri, 27 Feb 2026 04:37:17 +0500 Subject: [PATCH] =?UTF-8?q?=D0=A1=D0=B0=D0=B2=D0=B8=D0=BB=D0=BE=D0=B2=20?= =?UTF-8?q?=D0=9F=D1=80=D0=98-202.=20=D0=9C=D0=BE=D0=B4=D1=83=D0=BB=D1=8C?= =?UTF-8?q?=209?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- task01/src/com/example/task01/Pair.java | 43 +++++++++++- task01/src/com/example/task01/Task01Main.java | 2 - task02/list1.dat | Bin 0 -> 72 bytes task02/list1a.dat | Bin 0 -> 78 bytes task02/list2.dat | Bin 0 -> 1162 bytes task02/list4.dat | Bin 0 -> 155 bytes task02/src/com/example/task02/SavedList.java | 57 ++++++++++++---- task03/src/com/example/task03/Task03Main.java | 61 ++++++++++++++++-- 8 files changed, 142 insertions(+), 21 deletions(-) create mode 100644 task02/list1.dat create mode 100644 task02/list1a.dat create mode 100644 task02/list2.dat create mode 100644 task02/list4.dat diff --git a/task01/src/com/example/task01/Pair.java b/task01/src/com/example/task01/Pair.java index f6fb603b..c4256c46 100644 --- a/task01/src/com/example/task01/Pair.java +++ b/task01/src/com/example/task01/Pair.java @@ -1,5 +1,44 @@ package com.example.task01; -public class Pair { - // TODO напишите реализацию +import java.util.Objects; +import java.util.function.BiConsumer; + +public class Pair { + private final T1 first; + private final T2 second; + + private Pair(T1 first, T2 second) { + this.first = first; + this.second = second; + } + + public static Pair of(T1 first, T2 second) { + return new Pair<>(first, second); + } + + public T1 getFirst() { + return first; + } + + public T2 getSecond() { + return second; + } + + public void ifPresent(BiConsumer consumer) { + if (first != null && second != null) + consumer.accept(first, second); + } + + @Override + public boolean equals(Object o) { + if (this == o) return true; + if (o == null || getClass() != o.getClass()) return false; + Pair pair = (Pair) o; + return Objects.equals(first, pair.first) && Objects.equals(second, pair.second); + } + + @Override + public int hashCode() { + return Objects.hash(first, second); + } } diff --git a/task01/src/com/example/task01/Task01Main.java b/task01/src/com/example/task01/Task01Main.java index 54dde94f..aaaaba8e 100644 --- a/task01/src/com/example/task01/Task01Main.java +++ b/task01/src/com/example/task01/Task01Main.java @@ -8,7 +8,6 @@ public static void main(String[] args) throws IOException { // TODO С корректно реализованным классом Pair должен компилироваться и успешно работать следующий код: - /* Pair pair = Pair.of(1, "hello"); Integer i = pair.getFirst(); // 1 String s = pair.getSecond(); // "hello" @@ -21,7 +20,6 @@ public static void main(String[] args) throws IOException { Pair pair2 = Pair.of(1, "hello"); boolean mustBeTrue = pair.equals(pair2); // true! boolean mustAlsoBeTrue = pair.hashCode() == pair2.hashCode(); // true! - */ } diff --git a/task02/list1.dat b/task02/list1.dat new file mode 100644 index 0000000000000000000000000000000000000000..e09632d32de0890ed6bfc295d1ff21b297459f13 GIT binary patch literal 72 zcmZ4UmVvdnh(S0ju`E%qv?Mb}&#|Z|vC=2AxTK=-lI+amiF2757(E$SiZiQHD+(AG Z7?{dgKx7F6vwvP{2?J|LMp0^N1ps)r7AXJ# literal 0 HcmV?d00001 diff --git a/task02/list1a.dat b/task02/list1a.dat new file mode 100644 index 0000000000000000000000000000000000000000..e23b42f9a735d90d23859e7eda7a1fa0bfaa7dc6 GIT binary patch literal 78 zcmZ4UmVvdnh(S0ju`E%qv?Mb}&#|Z|vC=2AxTK=-lI+amiF2757(E$SiZiQHD+(AG e7?{ghKx7F6vwvPHkPIo$FJWK}$tX%qtpET3&KKMO literal 0 HcmV?d00001 diff --git a/task02/list2.dat b/task02/list2.dat new file mode 100644 index 0000000000000000000000000000000000000000..5f09bec6154ced2ca7c099b43ff047d57d70a008 GIT binary patch literal 1162 zcmYMzJxT;Y5QgEF-9>Zb1y8V8)j!o6nkfh-USNU|XBkvxW_2|47zW`=M>;Kc7@SS^xk5 literal 0 HcmV?d00001 diff --git a/task02/list4.dat b/task02/list4.dat new file mode 100644 index 0000000000000000000000000000000000000000..76e4dedeefb88bd4d9b05d5d6f99998683a3b4d4 GIT binary patch literal 155 zcmZ4UmVvdnh(S0ju`E%qv?Mb}&#|Z|vC=2AxTK=-lI+amiF2757(E$SiZiQHD+(AG z7?{ghKqOF;AXrmQVqUtQXI@EadTNo-qXkR8H?~_afwZueCFYc-RunM^Ak_Jl<|d^U hwXK;d%RS{mHxmN`$Vler#f1!Y3_u extends AbstractList { +public class SavedList extends AbstractList { + private final File file; + private final List list; public SavedList(File file) { + this.file = file; + this.list = new ArrayList<>(); + + if (file.exists() && file.length() > 0) { + try (ObjectInputStream ois = new ObjectInputStream(new FileInputStream(file))) { + List loadedList = (List) ois.readObject(); + list.addAll(loadedList); + } catch (IOException | ClassNotFoundException e) { + System.err.println("Ошибка загрузки: " + e.getMessage()); + } + } + } + + private void saveToFile() { + try (ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(file))) { + oos.writeObject(new ArrayList<>(list)); + } catch (IOException e) { + System.err.println("Ошибка сохранения: " + e.getMessage()); + } } @Override - public E get(int index) { - return null; + public T get(int index) { + return list.get(index); } @Override - public E set(int index, E element) { - return null; + public T set(int index, T element) { + T oldElement = list.set(index, element); + saveToFile(); + return oldElement; } @Override public int size() { - return 0; + return list.size(); + } + + @Override + public void add(int index, T element) { + list.add(index, element); + saveToFile(); } @Override - public void add(int index, E element) { + public boolean add(T element) { + boolean result = list.add(element); + saveToFile(); + return result; } @Override - public E remove(int index) { - return null; + public T remove(int index) { + T removedElement = list.remove(index); + saveToFile(); + return removedElement; } } diff --git a/task03/src/com/example/task03/Task03Main.java b/task03/src/com/example/task03/Task03Main.java index 7f255e98..115e41f5 100644 --- a/task03/src/com/example/task03/Task03Main.java +++ b/task03/src/com/example/task03/Task03Main.java @@ -1,11 +1,8 @@ package com.example.task03; -import java.io.FileInputStream; -import java.io.IOException; -import java.io.InputStream; +import java.io.*; import java.nio.charset.Charset; -import java.util.List; -import java.util.Set; +import java.util.*; public class Task03Main { @@ -19,6 +16,58 @@ public static void main(String[] args) throws IOException { } public static List> findAnagrams(InputStream inputStream, Charset charset) { - return null; + if (!charset.isRegistered()) { + throw new IllegalArgumentException(); + } + + Map> map = new HashMap<>(); + Set uniqueWords = new HashSet<>(); + + try (BufferedReader br = new BufferedReader(new InputStreamReader(inputStream, charset))) { + String line; + while ((line = br.readLine()) != null) { + line = line.trim().toLowerCase(); + + if (isValidLine(line)) { + uniqueWords.add(line); + } + } + } catch (IOException ioe) { + ioe.printStackTrace(); + } + + for (String word : uniqueWords) { + char[] chars = word.toCharArray(); + Arrays.sort(chars); + String key = new String(chars); + + map.computeIfAbsent(key, k -> new TreeSet<>()).add(word); + } + + List> result = new ArrayList<>(); + + for (Set group : map.values()) { + if (group.size() >= 2) { + result.add(group); + } + } + + result.sort(Comparator.comparing(set -> set.iterator().next())); + + return result; + } + + private static boolean isValidLine(String line) { + if (line.length() < 3) { + return false; + } + + for (char ch : line.toCharArray()) { + if (!((ch >= 'а' && ch <= 'я') || ch == 'ё')) { + return false; + } + } + + return true; } }