Download file lock java application

Next on our list of best folder lock software for PC is Folder Guard. It comes in both a free and premium paid version.

Iobit is one of the most renowned and trusted file Encryption Software. Make your files, pictures, sensitive videos, and folders secure by adding a password to them. Lock and safeguard your files and folders by setting a password. Folder Locker Pro is a hacker-proof folder lock software for Windows 10 that you can pick. Apart from this, it is exceptionally easy to use this best folder lock software. Pick it today to safeguard your confidential data. With this incredible File lock software , you can lock as many files and folders as you wish.

Its working mechanism is relatively simple, with few steps to follow. Another Folder locker software with which you can pick to safeguard your sensitive files and data is Lock-A-File. Do you have multiple folders to protect? If you are looking for a free file protector application that can hide your sensitive data, lockdown confidential files, and protect private pictures. Quick File Locker is the most suitable file lock software for you. This lightweight tool comes with a highly effective protection functionality.

Once the files are locked, no unwanted person will be able to read, access, delete, modify, or copy files. Last on our list of folder lock software for Windows PC is the Protect folder.

As the name suggests, its primary function is to lock and protect your stuff from unwanted access. Hide your private pictures, audios, documents with the tight security of Wise Folder Hider. It is software for hiding pictures, confidential documents, and audio on the computer system. The software offers next level password protection for any particular folder, drive, or file. Wise Folder Hider available in two variants i.

You can opt for which fits the bill. Apart from this, Wise Folder Hider offers full money-back support to its users but only within 60 days of the purchase period. When we work on a shared computer, it becomes quite crucial to hide our private pictures, documents, and audios. And, the most convenient way to do this is through the best file and folder lock software. For that, Free Hide Folder is an application that allows you to hide or protect your personal data, files with a password.

You just need to choose the list of files that you want to hide then you need to click on the Hide option and here you go.

All your selected files are password protected now. Yes, you can lock the confidential information stored on your computer without using a File lock software. Just follow these instructions. Smartphones and computer systems are a reservoir of tons of data including both important and not so important ones, including private and confidential data. Ensuring multi-layer safety and security of your data is highly essential in this technical era. A file lock software for windows serves the purpose in such scenarios and encrypts and password-protect your data.

All the above software mentioned in our list of best folder lock software are known for offering robust password-protection. Pick the best-suited option for you today for additional data security. Sign me up for the newsletter! Published Date : Jan 05, Learn more. How can I lock a file using java if possible Ask Question. Asked 13 years, 3 months ago. Active 1 year, 5 months ago. Viewed k times. To clarify: I have a Java app that lists a folder and opens each file in the listing for processing it.

Improve this question. Community Bot 1 1 1 silver badge. Paralife Paralife 5, 8 8 gold badges 38 38 silver badges 58 58 bronze badges. The impact on the answer is paramount. Add a comment.

Active Oldest Votes. Improve this answer. Tom Hawtin - tackline Tom Hawtin - tackline k 30 30 gold badges silver badges bronze badges. More importantly, understand that the lock of for the JVM, and not suitable for locking the file for access by individual threads within a single JVM. You need a writable stream i. Javier Do you? I've not tried. Nothing jumps out of the API docs saying that is a requirement. FileOutputStream isn't going to be much use for a Reader. Yes, I tried it and it throws NonWritableChannelException , because lock attempts to acquire an exclusive lock, but that requires write access.

If you have an input stream, you can use lock 0L, Long. You can also use a RandomAccessFile opened in read-write mode if you want a exclusive lock while reading Javier I think you mean to say lock 0L, Long. Show 2 more comments. For locking it's generally crucial to do the lock release in a finally to make sure it's released even if there is an exception.

It'd be nice if you could fix this, so that people don't produce bugs. OK, the try with resources statement in the accepted answer is probably usually even better. Depends on what OP meant by 'process'.

They are not suitable for controlling access to a file by multiple threads within the same virtual machine. Stu: I know you have answered this question long time ago, but I hope you can elaborate what you mean when you said File locks are held on behalf of the entire Java virtual machine.

They are not suitable for controlling access to a file by multiple threads within the same virtual machine — Thang Pham. Harry He's citing from the docs: download.

Harry: To add even more to these necro-comments, imagine you are using Java for serving websites with Tomcat. You might have a lot of threads, each serving one request from a web-browser. However, they all control the same file locking mechanism like too many cooks in a kitchen. One request might finish in the middle of a second one, and suddenly your file got "unlocked" while you were still in the middle of something, and then some other process like a cronjob might lock it, and then you've unexpectedly lost your lock and your request cannot finish Matt Matt 2, 16 16 silver badges 18 18 bronze badges.

Two processes can't use synchronisation, only two threads in the same process. Kevin Day Kevin Day I mean, to what extend is the lock by RandomAccess File better or safer than streams one — Paralife. Link to simple example posted below — Touko. Paralife - sorry for the delay - just noticed your question. The locks from streams are going to be read locks for input streams and exclusive, full channel write locks for output streams. My experience has been that the locks from RAF allow for more fine grained control i.

Below is a sample snippet code to lock a file until it's process is done by JVM.