pls help me

Question about the task

Under discussion

Don't know what's wrong with my solution, it run just as the condition on my computer, but still cannot pass the test. It seems that some kind of exception occured, but iI cannot figure it out...

The main method accepts a list of arguments.
The first argument is the full path to the fileName file.
The second argument is the path to a ZIP file.
Add the fileName file to the archive inside the "new" directory.
If the archive already has a file with the same name in the "new" directory, then replace it.

Example input:
C:/result.mp3 C:/pathToTest/test.zip

Files inside test.zip:
a.txt b.txt

After running Solution.main, the test.zip archive must contain the following:
new/result.mp3
a.txt b.txt

Hint: you need to first save the contents of all of the zip entries somewhere,
and then write all the entities together with the added file to the archive.
Don't use the file system.

Requirements:

In the main method, create a ZipInputStream for the archive (main's second argument). You need to read all of its contents.
In the main method, create a ZipOutputStream for the archive (main's second argument).
You need to write the contents of the file passed to main as the first argument to the ZipOutputStream.
You need to write all of the other content read from the ZipInputStream to the ZipOutputStream.
The archive streams must be closed.

package com.codegym.task.task31.task3105; import java.io.*; import java.nio.file.*; import java.util.*; import java.util.zip.*; /* Adding a file to an archive */ public class Solution { public static void main(String[] args) throws IOException { if (args.length>0){ String fileToBeAdded = args[0]; String name = fileToBeAdded.substring(fileToBeAdded.lastIndexOf("/") + 1); ZipInputStream zipInputStream = new ZipInputStream(new FileInputStream(args[1])); Map<ZipEntry,Path> content = new LinkedHashMap<>(); ZipEntry entry; while ((entry=zipInputStream.getNextEntry())!=null){ //System.out.println(entry); if (!entry.getName().equals("new/"+name)) { if (!entry.isDirectory() && (entry.getSize() > 0)) { /* byte[] bytes = new byte[(int) entry.getSize()]; System.out.println(entry.getName()); zipInputStream.read(bytes);*/ Path temp = Files.createTempFile("temp",""); Files.copy(zipInputStream,temp,StandardCopyOption.REPLACE_EXISTING); content.put(entry,temp); } else { content.put(entry,null); } } } zipInputStream.close(); Path added = Paths.get(fileToBeAdded); ZipOutputStream zipOutputStream = new ZipOutputStream(new FileOutputStream(args[1])); zipOutputStream.putNextEntry(new ZipEntry("new/" + name)); Files.copy(added,zipOutputStream); content.forEach((zipEntry, path) -> { try { //System.out.println(zipEntry); zipOutputStream.putNextEntry(zipEntry); if (path != null) { Files.copy(path,zipOutputStream); } } catch (IOException e) { e.printStackTrace(); } }); zipOutputStream.close(); } } }

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CapLand

Level 23 , Mentor, United States

13 August 2019, 14:59

Have you made any progress on this? I'm in the same boat. I've tried it in a similar way to you, I also tried storing the current files in byte[] then writing them to the zip. Both ways work fine on my computer but won't validate.

CapLand

Level 23 , Mentor, United States

13 August 2019, 15:20

Figure it out. Passing the ZipEntry from the original file to putNextEntry() creates problems. Think about what information you really need from the original ZipEntry and create a new one based on that when you put the original files back into the new zip file.