Five must-know Java decompilation tools, how to choose the most suitable one?

Choose the best Java decompilation tool: Five options you need to know

With the widespread use of the Java language, Java decompilation tools have become more and more popular. is becoming more and more important. During software development, we often encounter situations where we need to view or modify compiled Java bytecode. In order to perform these operations conveniently and efficiently, it is important to choose a Java decompilation tool that suits you. This article will introduce five commonly used and noteworthy Java decompilation tools to help you find the most suitable one among the many choices.

1. JD-GUI

JD-GUI is a popular Java decompilation tool that provides a graphical user interface that is simple and intuitive. It supports bytecode decompilation of all versions of Java and can directly save the decompiled code as a Java file. JD-GUI can accurately restore the structure of Java source code, and its decompilation speed is also very fast. In addition, JD-GUI also supports viewing and decompiling jar packages and .class files, with very comprehensive functions.

2. Procyon

Procyon is a Java decompiler based on open source. Its main advantages are its support for Java 8 and its fast decompilation speed. Procyon provides a concise and easy-to-use command line interface, and uses the web version to display the decompilation results, which is very convenient. Procyon also has the function of saving the decompiled code as a Java file to help developers modify and debug.

3. FernFlower

FernFlower is another popular Java decompilation tool. It is a pure Java decompiler that can decompile Java bytecode into retrievable Highly readable source code. FernFlower's decompilation results are usually very similar to the original Java files, and support automatic recognition of lambda expressions and new Java 8 features. FernFlower can also decompile jar packages and WAR files, which is very suitable for decompiling Java projects.

4. CFR

CFR is a powerful Java decompilation tool, which is characterized by very high decompilation speed and accuracy. CFR is able to accurately decompile bytecode into Java source code and generate separate Java files for each class. CFR supports decompiling jar packages and class files, and supports saving the decompilation results as files. In addition, CFR also supports use through command line and graphical interface, which is flexible and convenient.

5. JAD

JAD is an old but still popular Java decompilation tool, loved by many developers because of its simplicity and ease of use. JAD can decompile bytecode into Java files and supports saving the decompilation results as files. However, JAD only supports older Java versions and does not have complete support for new Java features.

To sum up, choosing the best Java decompilation tool depends on personal needs and preferences. If you need an intuitive and comprehensive tool, JD-GUI is a good choice. If you have higher requirements for decompilation speed, you can consider Procyon. If you need to decompile Java projects, FernFlower may be more suitable for you. For users who pursue speed and accuracy, CFR is a good choice. If you don't have much need for newer Java features, JAD is a simple and useful tool. Try different tools and choose the one that suits you best according to your needs, which can effectively improve work efficiency and code quality.

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