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package com.javarush.task.task19.task1916; import java.io.*; import java.util.ArrayList; import java.util.List; /* Отслеживаем изменения */ public class Solution { public static List<LineItem> lines = new ArrayList<LineItem>(); public static void main(String[] args) throws Exception { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); String file1 = reader.readLine(); String file2 = reader.readLine(); reader.close(); BufferedReader fileReader1 = new BufferedReader(new FileReader(file1)); BufferedReader fileReader2 = new BufferedReader(new FileReader(file2)); ArrayList<String> arrayList1 = new ArrayList<>(); ArrayList<String> arrayList2 = new ArrayList<>(); String str = ""; boolean b1 = fileReader1.ready(); boolean b2 = fileReader2.ready(); while (fileReader1.ready()) { char ch = (char) fileReader1.read(); str += String.valueOf(ch); } String[] strArray1 = str.split("\n"); for (int i = 0; i < strArray1.length; i++) { arrayList1.add(strArray1[i]); } str = ""; while (fileReader2.ready()) { char ch = (char) fileReader2.read(); str += String.valueOf(ch); } int j = 0; String[] strArray2 = str.split("\n"); for (int i = 0; i < strArray2.length; i++) { arrayList2.add(strArray2[i]); } if (arrayList1.size()>arrayList2.size()) { while (arrayList2.size()!=arrayList1.size()) { arrayList2.add(arrayList2.size(), ""); } } if (arrayList2.size()>arrayList1.size()) { while (arrayList1.size()!=arrayList2.size()) { arrayList1.add(arrayList1.size(), ""); } } for (int i = 0; i < arrayList1.size(); i++) { String s1 = arrayList1.get(i); String s2 = arrayList2.get(i); if ((!(s1.trim().length()==0)) && (!(s2.trim().length()==0))) { if (!(arrayList1.get(i).equals(arrayList2.get(i)))&&!(arrayList2.get(i).equals(arrayList1.get(i)))) { lines.add(new LineItem(Type.SAME, arrayList1.get(i) + " " + arrayList2.get(i))); } else if (arrayList1.get(i).equals(arrayList2.get(i))&&arrayList2.get(i).equals(arrayList1.get(i))) { lines.add(new LineItem(Type.SAME, arrayList2.get(i))); } } else if (arrayList1.get(i).trim().length()==0) { lines.add(new LineItem(Type.ADDED, arrayList2.get(i))); } else if (arrayList2.get(i).trim().length()==0) { lines.add(new LineItem(Type.REMOVED, arrayList1.get(i))); } } System.out.println(lines); fileReader1.close(); fileReader2.close(); } public static enum Type { ADDED, //добавлена новая строка REMOVED, //удалена строка SAME //без изменений } public static class LineItem { public Type type; public String line; public LineItem(Type type, String line) { this.type = type; this.line = line; } } }