What's the CLASS File?

Written by:   |   Edited: November 26, 2018

Microsoft Silver

CLASS File Summary

Most CLASS files can be viewed with four known software applications, typically Eclipse IDE for Java Developers developed by The Eclipse Foundation. and associated with the Java Class File format as it's primary file type. CLASS files are categorized ordinarily as Developer Files.

The CLASS File Extension can be viewed on the Windows, Mac, and Linux operating systems. They are supported on both desktop and mobile devices. The main CLASS file type has a Popularity Rating of "Low", meaning these files are not frequently present on your typical desktop or mobile device.

Interested to learn more about the CLASS File Extension? We encourage you to view the detailed file information below to learn about the software that opens CLASS files, and other troubleshooting tips.

Low
Demand
767
File Rank

/ 11690

Active

Status

26

November

2018

Revised

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Sorts of CLASS Files


Main CLASS Affiliation

.CLASS
Formatting:.class
Category:Java Class File

The CLASS file is a compiled .JAVA file created by the Java compiler.The class file contains Java bytecode that can be executed on the Java virtual machine.The different Java source code files are compiled together to create the resulting CLASS file.The CLASS file consists of 8-bit bytes.The CLASS file can be compiled by many Java IDEs as eclipse.

Company: Oracle Corporation
Class:Developer Files
Location: HKEY_CLASSES_ROOT\.class

Software Programs That Open The Java Class File:


Eclipse IDE for Java Developers by The Eclipse Foundation

Windows
Mac
Linux

DirtyJOE by Interscape

Windows

JD-GUI by Interscape

Windows
Mac
Linux

Apple Jar Launcher by Apple

Mac

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CLASS Requests


Operating System Rank

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


CLASS Troubleshooting


Troubles Opening CLASS Files

Missing Eclipse IDE for Java Developers

You attempt to load your CLASS file and get an error such as "%%os%% Can't Open The CLASS File Extension". Customarily, this means that Eclipse IDE for Java Developers is not installed on %%os%%. You won't be able to double-click to open your CLASS because your OS doesn't know what to do with it.


Tip: Another CLASS-related program can be selected to open the file by clicking "Show Apps" and finding the application.


Eclipse IDE for Java Developers is Out-of-Date

Sometimes your installed version of Eclipse IDE for Java Developers won't support your Java Class File file. If you do not have the proper version Eclipse IDE for Java Developers (or any of the other programs listed above), you may need to try downloading a different version of it, or one of the other software applications listed above. This problem is predominately due to having a Java Class File file version that was created by a newer version of Eclipse IDE for Java Developers than what you have installed on your PC.


Tip: If you right-click on your CLASS file, then select "Properties" (Windows) or "Get Info" (Mac), you can obtain hints about what version you need.


Conclusion: The majority of CLASS file opening issues are due to not having the correct Eclipse IDE for Java Developers version installed.


More Causes of Problems Opening CLASSs

Errors opening Java Class File files can still occur even with the latest Eclipse IDE for Java Developers software installed on your computer. There can be external issues inside of %%os%% that are causing these errors when opening CLASSs. Other contributing causes:

  • CLASS file references in the Windows Registry are broken
  • Deletion of the CLASS file description from the Registry by mistake
  • Eclipse IDE for Java Developers or another CLASS application experienced a flawed installation
  • Your CLASS can't be loaded properly (file corruption)
  • Past or present virus infection has affected your CLASS
  • CLASS-related hardware has device drivers that obsolete
  • Insufficient system resources to successfully open Java Class File files

Quiz: What file extension was created by Adobe Corporation in 1992?









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