From c3ade23b3ca417e1d145f54ab1e04d898f0e9951 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=D0=92=D0=B0=D0=BB=D0=B5=D1=80=D0=B8=D1=8F=20=D0=92=D0=BE?= =?UTF-8?q?=D1=80=D0=BE=D0=BD=D1=86=D0=BE=D0=B2=D0=B0?= Date: Sun, 7 Dec 2025 16:09:23 +0500 Subject: [PATCH] =?UTF-8?q?=D0=92=D0=BE=D1=80=D0=BE=D0=BD=D1=86=D0=BE?= =?UTF-8?q?=D0=B2=D0=B0=20=D0=92=D0=B0=D0=BB=D0=B5=D1=80=D0=B8=D1=8F.=20?= =?UTF-8?q?=D0=9F=D1=80=D0=98-201.=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 | 45 ++++++++++++++++- task01/src/com/example/task01/Task01Main.java | 4 -- task02/src/com/example/task02/SavedList.java | 50 ++++++++++++++++--- task03/src/com/example/task03/Task03Main.java | 28 ++++++++--- 4 files changed, 109 insertions(+), 18 deletions(-) diff --git a/task01/src/com/example/task01/Pair.java b/task01/src/com/example/task01/Pair.java index f6fb603b..d38bf2a5 100644 --- a/task01/src/com/example/task01/Pair.java +++ b/task01/src/com/example/task01/Pair.java @@ -1,5 +1,46 @@ package com.example.task01; -public class Pair { - // TODO напишите реализацию +import java.util.Objects; +import java.util.function.BiConsumer; + +public class Pair { + private final F first; + private final S second; + + public Pair(F first, S second) { + this.first = first; + this.second = second; + } + + public static Pair of(F first, S second) { + return new Pair<>(first, second); + } + + public F getFirst() { + return first; + } + + public S getSecond() { + return second; + } + + public void ifPresent(BiConsumer consumer) { + if (first != null && second != null) { + consumer.accept(first, second); + } + } + + @Override + public boolean equals(Object obj) { + if (this == obj) return true; + if (!(obj instanceof Pair)) return false; + Pair pair = (Pair) obj; + 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..01957805 100644 --- a/task01/src/com/example/task01/Task01Main.java +++ b/task01/src/com/example/task01/Task01Main.java @@ -6,9 +6,6 @@ public class Task01Main { 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 +18,6 @@ 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/src/com/example/task02/SavedList.java b/task02/src/com/example/task02/SavedList.java index 6b3a037d..984949cf 100644 --- a/task02/src/com/example/task02/SavedList.java +++ b/task02/src/com/example/task02/SavedList.java @@ -1,35 +1,73 @@ package com.example.task02; -import java.io.File; -import java.io.Serializable; +import java.io.*; import java.util.AbstractList; +import java.util.ArrayList; +import java.util.List; public class SavedList extends AbstractList { + private final File file; + private List elements; public SavedList(File file) { + this.file = file; + this.elements = new ArrayList<>(); + loadFromFile(); + } + + private void loadFromFile() { + if (file.exists()) { + try (ObjectInputStream ois = new ObjectInputStream(new FileInputStream(file))) { + elements = (List) ois.readObject(); + } catch (IOException | ClassNotFoundException e) { + e.printStackTrace(); + elements = new ArrayList<>(); + } + } else { + elements = new ArrayList<>(); + } + } + + private void saveToFile() { + try (ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(file))) { + oos.writeObject(elements); + } catch (IOException e) { + e.printStackTrace(); + } } @Override public E get(int index) { - return null; + return elements.get(index); } @Override public E set(int index, E element) { - return null; + E oldElement = elements.set(index, element); + saveToFile(); + return oldElement; } @Override public int size() { - return 0; + return elements.size(); } @Override public void add(int index, E element) { + elements.add(index, element); + saveToFile(); } @Override public E remove(int index) { - return null; + E removedElement = elements.remove(index); + saveToFile(); + return removedElement; + } + + @Override + public String toString() { + return elements.toString(); } } diff --git a/task03/src/com/example/task03/Task03Main.java b/task03/src/com/example/task03/Task03Main.java index 7f255e98..05a3c652 100644 --- a/task03/src/com/example/task03/Task03Main.java +++ b/task03/src/com/example/task03/Task03Main.java @@ -1,11 +1,9 @@ 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.*; +import java.util.stream.Collectors; public class Task03Main { @@ -19,6 +17,24 @@ public static void main(String[] args) throws IOException { } public static List> findAnagrams(InputStream inputStream, Charset charset) { - return null; + Map> anagrams = new TreeMap<>(); + + try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream, charset))) { + bufferedReader.lines() + .map(String::toLowerCase) + .filter(x -> x.length() >= 3 && x.matches("[а-я]+")) + .forEach(x -> { + char[] chars = x.toCharArray(); + Arrays.sort(chars); + String word = new String(chars); + anagrams.computeIfAbsent(word, y -> new TreeSet<>()).add(x); + }); + } catch (IOException e) { + e.printStackTrace(); + } + + return anagrams.values().stream() + .filter(x -> x.size() >= 2) + .collect(Collectors.toList()); } }