Хелп
package com.javarush.task.task19.task1916;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
/*
Отслеживаем изменения
*/
// C:\Users\Legion\Desktop\Work\Java\a.txt
// C:\Users\Legion\Desktop\Work\Java\f.txt
public class Solution {
public static List<LineItem> lines = new ArrayList<LineItem>();
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String fileName1 = reader.readLine();
String fileName2 = reader.readLine();
reader.close();
try (BufferedReader fileReader1 = new BufferedReader(new FileReader(fileName1));
BufferedReader fileReader2 = new BufferedReader(new FileReader(fileName2))) {
ArrayList<String> arrayFileReader1 = new ArrayList<>();
ArrayList<String> arrayFileReader1Edit = new ArrayList<>();
ArrayList<String> arrayFileReader2 = new ArrayList<>();
ArrayList<String> arrayFileReader2Edit = new ArrayList<>();
while (fileReader1.ready()) {
arrayFileReader1.add(fileReader1.readLine());
}
while (fileReader2.ready()) {
arrayFileReader2.add(fileReader2.readLine());
}
if (arrayFileReader1.size() >= arrayFileReader2.size() && (arrayFileReader2.size() > 2)) {
int k = 0;
for (int i = 0; i < arrayFileReader2.size(); i++) {
String str1 = arrayFileReader1.get(i);
if (arrayFileReader1.get(i).equals(arrayFileReader2.get(k))) {
lines.add(new LineItem(Type.SAME, arrayFileReader1.get(i)));
//i++;
if (arrayFileReader1.get(i + 2).equals(arrayFileReader2.get(k + 1))) {
lines.add(new LineItem(Type.REMOVED, arrayFileReader1.get(i + 1)));
k++;
i++;
}
if (arrayFileReader1.get(i + 1).equals(arrayFileReader2.get(k + 2))) {
lines.add(new LineItem(Type.ADDED, arrayFileReader2.get(k + 1)));
k += 2;
}
}
}
if (arrayFileReader1.get(arrayFileReader1.size() - 2).equals(arrayFileReader2.get(arrayFileReader2.size()-1))) {
lines.add(new LineItem(Type.SAME, arrayFileReader1.get(arrayFileReader1.size() - 2)));
lines.add(new LineItem(Type.REMOVED, arrayFileReader1.get(arrayFileReader1.size() - 1)));
}
} else if ((arrayFileReader2.size() > arrayFileReader1.size() && (arrayFileReader1.size() > 2))) {
int k = 0;
for (int i = 0; i < arrayFileReader1.size(); i++) {
String str1 = arrayFileReader2.get(i);
if (arrayFileReader2.get(i).equals(arrayFileReader1.get(k))) {
lines.add(new LineItem(Type.SAME, arrayFileReader2.get(i)));
//i++;
if (arrayFileReader2.get(i + 2).equals(arrayFileReader1.get(k + 1))) {
lines.add(new LineItem(Type.REMOVED, arrayFileReader2.get(i + 1)));
k++;
i++;
}
if (arrayFileReader2.get(i + 1).equals(arrayFileReader1.get(k + 2))) {
lines.add(new LineItem(Type.ADDED, arrayFileReader1.get(k + 1)));
k += 2;
}
}
}
if (arrayFileReader2.get(arrayFileReader2.size() - 2).equals(arrayFileReader1.get(arrayFileReader1.size()-1))) {
lines.add(new LineItem(Type.SAME, arrayFileReader2.get(arrayFileReader1.size() - 2)));
lines.add(new LineItem(Type.REMOVED, arrayFileReader2.get(arrayFileReader1.size() - 1)));
}
} else {
//String a = arrayFileReader1.get(arrayFileReader1.size() - 1);
//String b = arrayFileReader2.get(arrayFileReader2.size() - 1);
lines.add(new LineItem(Type.SAME, arrayFileReader1.get(arrayFileReader1.size() - 1)));
lines.add(new LineItem(Type.REMOVED, arrayFileReader2.get(arrayFileReader2.size() - 1)));
}
}
// for (LineItem line : lines) {
// System.out.println(line.type + line.line);
// }
}
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;
}
}
}