What is the JAVA File Extension?

Author:   |   Refreshed: November 26, 2018

Microsoft Silver

JAVA File Summary

File Extension JAVA has only one distinct file type (Java Source Code format) and is mostly associated with Microsoft Notepad (Microsoft Corporation) and thirteen other software programs. JAVA files are traditionally categorized as Developer Files.

File Extension JAVA is supported by Windows, Mac, and Linux operating systems. These types of files can be found on both desktop and mobile devices. With a Popularity Rating of "Low", these files are not very common to your average computer user.

If you would like to learn more about JAVA files and the software that opens them, please see the additional detailed information below. Also, you can learn how to do some basic JAVA file troubleshooting if you are having trouble opening these files.

Low
Prevalence
187
Ranking

/ 11690

Active

File Status

26

November

2018

Refreshed

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Kinds of JAVA Files


Dominant JAVA File Type

.JAVA
Formatting:.java
Classification:Java Source Code

A JAVA file is a source code of a specific program written in the Java programming language. It may be one of many Java source files referenced within a programming project or may contain all the source code in one file.

Developer: Oracle Corporation
Function:Developer Files
Subkey: HKEY_CLASSES_ROOT\.java

Software Programs That Open The Java Source Code:


Microsoft Notepad by Microsoft Corporation

Windows
Mac
Linux

MacroMates TextMate by MacroMates

Mac

gVim by Open Source

Windows

GNU Emacs by GNU Project

Windows
Mac
Linux
GNU

Apple TextEdit by Apple

Mac

Eclipse IDE for Java Developers by The Eclipse Foundation

Windows
Mac
Linux

NetBeans by Open Source

Windows
Mac
Linux
Solaris

Android Studio by Google

Windows
Mac
Linux

BBEdit by Bare Bones Software

Mac

Java Virtual Machine by Sun Microsystems

Windows
Mac
Linux

Atom by GitHub, Inc.

Windows
Mac
Linux

Vi by SourceForge

Linux

PSPad by Open Source

Windows

Java Development Kit (JDK) by Oracle Corporation

Windows
Mac
Linux

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JAVA Demand


OS Rank

Windows 7 (48%)
Windows 10 (42%)
Windows 8.1 (5%)
Windows XP (2%)

Top Operating Systems

Windows (82.33%)
Android (11.56%)
iOS (3.43%)
Macintosh (1.71%)
Linux (0.60%)


JAVA File Complications


Typical JAVA Opening Challenges

Microsoft Notepad Disappeared

You encounter an error message such as "%%os%% Can't Open JAVA Files" when trying to open your JAVA. If this is the case, it's usually due to the fact that you do not have Microsoft Notepad for %%os%% installed on your computer. This will prevent you from double-clicking to open the JAVA file because the OS doesn’t know how to handle it.


Tip: If you don't have Microsoft Notepad installed, and you know of another program to open your JAVA file, you can try opening it by selecting from the programs listed under "Show Apps".


Wrong Version of Microsoft Notepad is Installed

In some cases, you might have a newer (or older) version of a Java Source Code file that is unsupported by your installed application version. If you've got the wrong version of Microsoft Notepad installed, you'll need to install the correct version. Your Java Source Code file was probably created by a newer release of Microsoft Notepad than what's currently installed your computer.


Tip: Find clues on the correct software version by right-clicking your JAVA file and clicking "Properties".


Ultimately, most of the difficulties opening JAVA files are due to having the wrong version of Microsoft Notepad installed.


Other JAVA File Issues

Even with the correct version of Microsoft Notepad installed, you can still experience difficulties opening JAVAs. There can be external issues inside of %%os%% that are causing these errors when opening JAVAs. These other problems include (listed in order from most to least common):

  • JAVA file type Registry entries are wrong
  • Deletion of the JAVA file description from the Registry by mistake
  • Corrupt install of Microsoft Notepad or other JAVA-related program
  • File corruption affecting your JAVA file
  • Malware-tainted JAVA file can't be opened
  • Device drivers for JAVA-related hardware are out-of-date
  • Insufficient system resources to successfully open Java Source Code files

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