.j
File Type 1 |
Java Source File |
File Format |
Standard (developed by Oracle) |
Usage |
Open manually; may be referenced by an application |
Popularity |
★ ★ ☆ ☆ ☆ Uncommon |
Description |
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.
|
Open With |
Windows |
Oracle Java Virtual Machine
Eclipse IDE for Java Developers
gVim
|
macOS |
Oracle Java Virtual Machine
Eclipse IDE for Java Developers
|
Unix |
Oracle Java Virtual Machine
Eclipse IDE for Java Developers
javac
|
|
Updated |
2007 |
File Type 2 |
JAR Archive |
Popularity |
★ ☆ ☆ ☆ ☆ Rare |
Description |
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.
|
Open With |
Windows |
ARJ Software JAR
|
|
Updated |
2007 |
File Type 3 |
JPEG Image |
File Format |
Standard |
Usage |
Open manually |
Popularity |
★ ☆ ☆ ☆ ☆ Rare |
Description |
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.
|
Open With |
Windows |
Any picture viewer
Any Web browser
|
macOS |
Any picture viewer
Any Web browser
|
|
Updated |
2007 |
|