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Seminar_06/HW_NoteBook/model/FileOperationImpl.java
56 строк
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Evgeny
Seminar_06 added HW 2/5
16 апр 2023, 01:24
16 апр 2023, 01:24
c9d7b31
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package Seminar_06.HW_NoteBook.model; import java.io.*; import java.util.ArrayList; import java.util.List; public class FileOperationImpl implements FileOperation { private String fileName; public FileOperationImpl(String fileName) { this.fileName = fileName; try (FileWriter writer = new FileWriter(fileName, true)) { writer.flush(); } catch (IOException ex) { System.out.println(ex.getMessage()); } } public List<String> readAllLines() { List<String> lines = new ArrayList<>(); try { File file = new File(fileName); FileReader fr = new FileReader(file); BufferedReader reader = new BufferedReader(fr); String line = reader.readLine(); if (line != null) { lines.add(line); } while (line != null) { line = reader.readLine(); if (line != null) { lines.add(line); } } fr.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return lines; } public void saveAllLines(List<String> lines) { try (FileWriter writer = new FileWriter(fileName, false)) { for (String line : lines) { writer.write(line); writer.append('\n'); } writer.flush(); } catch (IOException ex) { System.out.println(ex.getMessage()); } } }