File Extension Library


.J File Extension

  • Developer by: Oracle
  • Category: Developer Files
  • Format: Text

What are .J files and how to open them?

Can't open .J file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .J file.

What is a .J file extension?

.J file extension is created by Oracle. .J has been classified as Developer Files. The format of .J file is Text.

.J is Java Source File

Contains program source code written in the Java programming language; may include the source code for a complete program or may be one of many files referenced by a Java programming project.

Java source files most often have a .JAVA extension.

List of all softwares that can open the Java Source File
Windows
File Viewer Plus
Oracle Java Virtual Machine
Eclipse IDE for Java Developers
gVim
Mac
Oracle Java Virtual Machine
Eclipse IDE for Java Developers
Linux
Oracle Java Virtual Machine
Eclipse IDE for Java Developers
javac
vim
File Type 2 JAR Archive
Category: Compressed Files

Compressed file archive created with JAR, the successor to the ARJ file compression program (which created .ARJ files); JAR is available in a 16-bit DOS version and a 32-bit Windows version.

Not related to the .JAR format, which is a Java Archive.

File Type 3 JPEG Image
Category: Raster Image Files Format: Binary

Compressed graphic that uses .JPEG image compression; may contain thousands of colors, which makes it a good format for storing digital photos; can use different levels of compression, but the more compression is used, the lower the quality of the resulting image.

Most JPEG files have a .JPG extension.

List of all softwares that can open the JPEG Image
Windows
Any Web browser
Mac
Any Web browser

How to fix problems with .J files

  1. You need to update the application that you normally use to open .J files. Only the latest version of the software supports the current .J file format
  2. You need to check the .J file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)