Can't pass final point. Can I get a hint?!

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Won't pass final validation point. Be sure that the lines list has the ADDED label with the required lines in the correct places. I have been reading about what others have done. I have tried with this inputs: Here is an example, lets say file one contained: line one is going to be the same line two is going to be removed line three is going to be the same line four is going to be removed line five is going to be the same line seven is going to be the same line nine is going to be the same and file two contained: line one is going to be the same line three is going to be the same line five is going to be the same line six is going to be added line seven is going to be the same line eight is going to be added line nine is going to be the same The result needs to match: [LineItem{SAME - line one is going to be the same} LineItem{REMOVED - line two is going to be removed} LineItem{SAME - line three is going to be the same} LineItem{REMOVED - line four is going to be removed} LineItem{SAME - line five is going to be the same} LineItem{ADDED - line six is going to be added} LineItem{SAME - line seven is going to be the same} LineItem{ADDED - line eight is going to be added} LineItem{SAME - line nine is going to be the same}] The result is the same, but I can't pass the validation.

Read 2 file names from the console: file1 and file2.
Both files contain text, but file2 is an updated version of file1. Some of the lines are still the same.
You need to create a merged version of the lines by writing them to the lines list.
The ADDED and REMOVED labels can't be used consecutively—they must always separated by the SAME label.
The example includes empty lines for clarity.
Neither the original file nor the updated file have empty lines!

Example 1:
original updated merged file1: file2: Result: (lines) line1 line1 SAME line1 line2 REMOVED line2 line3 line3 SAME line3 line4 REMOVED line4 line5 line5 SAME line5 line0 ADDED line0 line1 line1 SAME line1 line2 REMOVED line2 line3 line3 SAME line3 line4 ADDED line4 line5 line5 SAME line5 line0 REMOVED line0

Example 2:
original updated merged file1: file2: Result: (lines) line1 line1 SAME line1 line0 ADDED line0

In the example, empty lines mean that the line is not in the specified file.

Requirements:

The Solution class must contain a LineItem class.
The Solution class must have an enum called Type.
The Solution class must have a public static List<LineItem> field called lines that is initialized immediately.
In the main(String[] args) method, the program must read file names from the console (use BufferedReader).
In the main(String[] args) method, the BufferedReader used for reading input from the console must be closed after use.
The program must read the contents of the first and second file (use FileReader).
The file input streams (FileReader) must be closed.
The lines list should contain the merged version of the lines from the files. Each line should start with the label ADDED, REMOVED, or SAME, depending on the action taken.

package com.codegym.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; /* Tracking changes */ public class Solution { public static List<LineItem> lines = new ArrayList<>(); public static void main(String[] args) throws IOException { ArrayList<String>line1=new ArrayList<>(); ArrayList<String>line2=new ArrayList<>(); BufferedReader reader= new BufferedReader(new InputStreamReader(System.in)); String fileName1= reader.readLine(); String fileName2= reader.readLine(); reader.close(); BufferedReader reader1=new BufferedReader(new FileReader(fileName1)); String data; while((data=reader1.readLine())!=null){ line1.add(data); } reader1.close(); BufferedReader reader2=new BufferedReader(new FileReader(fileName2)); while((data=reader2.readLine())!=null){ line2.add(data); } reader2.close(); int i=0; int j=0; for(;i<line1.size();){ if(line1.get(i).equals(line2.get(j))){ LineItem item=new LineItem(Type.SAME,line1.get(i)); lines.add(item); i++; j++; } else if(!(line1.get(i).equals(line2.get(j)))&&(line1.get(i).equals(line2.get(j+1)))){ LineItem item=new LineItem(Type.ADDED,line2.get(j)); lines.add(item); j++; } else{ LineItem item=new LineItem(Type.REMOVED,line1.get(i)); lines.add(item); i++; } } } public static enum Type { ADDED, // New line added REMOVED, // Line deleted SAME // No change } public static class LineItem { public Type type; public String line; public LineItem(Type type, String line) { this.type = type; this.line = line; } } }

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Guadalupe Gagnon

Level 37 , Tampa, United States

20 November 2023, 04:46

Try more than one example. Try something like this: File one: line one is going to be the same line two is going to be removed line three is going to be the same line four is going to be removed line five is going to be the same line six is going to be removed line seven is going to be the same line eight is going to be removed and file two contained: line one is going to be the same line three is going to be the same line five is going to be the same line seven is going to be the same or like this: File one: line one is going to be the same line three is going to be the same line five is going to be the same line seven is going to be the same and file two contained: line one is going to be the same line two is going to be added line three is going to be the same line four is going to be added line five is going to be the same line six is going to be added line seven is going to be the same line eight is going to be added

catalin1989

Level 37 , Romania

20 November 2023, 11:45

Thanx for the examples. After I runned the code in debug mode, I made the adjustments to the algoritm and passed the test. Real hard exercise. And the explanation of the task was poorly. Thanx for your feedback.