From 7ecdee7b357c62510ec86ca57149eea29a6d5f0a Mon Sep 17 00:00:00 2001 From: gooseFn Date: Sun, 23 Nov 2025 21:38:41 +0500 Subject: [PATCH] done --- task01/src/com/example/task01/Pair.java | 42 +++++++++++++++- task01/src/com/example/task01/Task01Main.java | 5 -- 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 | 46 +++++++++++++++--- task03/src/com/example/task03/Task03Main.java | 29 ++++++++--- testlist.dat | Bin 0 -> 62 bytes 9 files changed, 100 insertions(+), 22 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 create mode 100644 testlist.dat diff --git a/task01/src/com/example/task01/Pair.java b/task01/src/com/example/task01/Pair.java index f6fb603b..680c0cfa 100644 --- a/task01/src/com/example/task01/Pair.java +++ b/task01/src/com/example/task01/Pair.java @@ -1,5 +1,43 @@ package com.example.task01; -public class Pair { - // TODO напишите реализацию +import java.util.Objects; +import java.util.function.BiConsumer; + +public class Pair { + private final T first; + private final U second; + + private Pair(T first, U second) { + this.first = first; + this.second = second; + } + + public static Pair of(T first, U second) { + return new Pair<>(first, second); + } + + public T getFirst() { + return first; + } + + public U getSecond() { + return second; + } + + @Override + public boolean equals(Object obj) { + if (this == obj) return true; + if (obj == null || getClass() != obj.getClass()) 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); + } + + public void ifPresent(BiConsumer biConsumer) { + if (first != null && second != null) biConsumer.accept(first, second); + } } diff --git a/task01/src/com/example/task01/Task01Main.java b/task01/src/com/example/task01/Task01Main.java index 54dde94f..466e87fd 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" @@ -21,8 +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/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 { + private final File file; + private final List list = new ArrayList<>(); public SavedList(File file) { + this.file = file; + loadFromFile(); + } + + private void loadFromFile() { + if (!file.exists()) return; + try (ObjectInputStream stream = new ObjectInputStream(Files.newInputStream(file.toPath()))) { + @SuppressWarnings("unchecked") + List loadedList = (ArrayList) stream.readObject(); + list.clear(); + list.addAll(loadedList); + } catch (IOException | ClassNotFoundException e) { + throw new RuntimeException("Error downloading data from a file", e); + } + } + + private void saveToFile() { + try (ObjectOutputStream stream = new ObjectOutputStream(Files.newOutputStream(file.toPath()))) { + stream.writeObject(list); + } catch (IOException e) { + throw new RuntimeException("Error saving data to file", e); + } } @Override public E get(int index) { - return null; + return list.get(index); } @Override public E set(int index, E element) { - return null; + E oldElement = list.set(index, element); + saveToFile(); + return oldElement; } @Override public int size() { - return 0; + return list.size(); } @Override public void add(int index, E element) { + list.add(index, element); + saveToFile(); } @Override public E remove(int index) { - return null; + E removedElement = list.remove(index); + saveToFile(); + return removedElement; } -} +} \ No newline at end of file diff --git a/task03/src/com/example/task03/Task03Main.java b/task03/src/com/example/task03/Task03Main.java index 7f255e98..19c049d6 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 { @@ -15,10 +13,25 @@ public static void main(String[] args) throws IOException { for (Set anagram : anagrams) { System.out.println(anagram); } - } public static List> findAnagrams(InputStream inputStream, Charset charset) { - return null; + Map> result = new TreeMap<>(); + try (BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, charset))) { + List lines = reader.lines() + .map(String::toLowerCase) + .filter(str -> str.matches("[а-яё]+") && str.length() >= 3) + .collect(Collectors.toList()); + for (String line : lines) { + char[] symbols = line.toCharArray(); + Arrays.sort(symbols); + String key = new String(symbols); + result.computeIfAbsent(key, value -> new TreeSet<>()).add(line); + } + } catch (IOException e) { } + return result.values() + .stream() + .filter(value -> value.size() >= 2) + .collect(Collectors.toList()); } -} +} \ No newline at end of file diff --git a/testlist.dat b/testlist.dat new file mode 100644 index 0000000000000000000000000000000000000000..c73617b15a15d88985efb25bd3603e06d6cf2121 GIT binary patch literal 62 zcmZ4UmVvdnh(S0ju`E%qv?Mb}&#|Z|vC=2AxTK=-lI+amiF2757(E$SiZiQHD+(AG P7#Pc0Kx7F6V^jqItH2WM literal 0 HcmV?d00001