Reviewed on July 17, 2018 Cavaj Java Decompiler is the best Java Decompiler that is ever developed. It is a great tool for converting bytecode to Java source code. Eclipse Class Decompiler is a plugin for the Eclipse platform. It integrates JD, Jad, FernFlower, CFR, and Procyon seamlessly with the Eclipse IDE. It displays all the Java sources during your debugging process, even if you do not have them all. And you can debug these class files directly without source code. With Java Decompiler you can open the JAR file and go to File, Save All Sources. It saves all class files into java files =D – Akira Yamamoto Apr 2 '13 at 22:54. Please remember that it makes errors too. I have a class with a Member variable and it moved it to the parameter of a function, destroying the effect of the code. So, to overcome this problem and to view the original JAVA source code hidden inside these class files stored inside the JAR file container, we use a tool called JD-GUI. JD stands for ' Java Decompiler '. It is a standalone graphical utility that displays Java source codes of.class files. DJ Java Decompiler is Windows XP, Windows 2003, Windows Vista, Windows 7, Windows 8, 8.1 and 10 decompiler and disassembler for Java that reconstructs the original source code from the compiled binary CLASS files (for example Java applets). DJ Java Decompiler is able to decompile complex Java applets and binaries, producing accurate source code.
Decompile Java Jar Tutorial
In this quick guide, you will learn how to decompile a .class file into a .java file. So let the decompilation begin.
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Java is one of the most popular languages. It is cross-platform, robust and very popular in the industry. The cross-platform thing archived using a class file that is platform-independent. So instead of directly compiling its program code to machine-dependent code, It first compiles it to Bytecode,Bluestacks android emulator for windows 7 64 bit free download offline. Which produces a .class file then that is compiled to machine-dependent code and gets executed in the JVM.
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Decompiling a java .class file into a .java file
To convert the file, we need a decompiler. There are many options available to choose from but in this on we are going to use CFT decompiler. It is reliable and easy to use and supports almost all JDK versions.
You can download it using the link given below. This will download a .jar file which we will use for decompiling.
After downloading the decompiler, Now place the class file and compiler into a folder for the convenience and open up the terminal. You can also use your command prompt if you are on Windows and CD to the folder an run the below command :
Above replace the Class-file with the actual file name and hit the enter key. This will generate a .java file, containing the actual code.
Alternatively, You can also use an online tool for the decompilation. Visit the given site for the same.
On this website. you can simply upload the .class file and it will do the job for you then you can download the converted .java file
Follow this video guide for step-by-step easy understanding
So that was it, I hope you liked the guide on how to decompile a class file into java file. Let me know your thoughts on this in the comment section below.