The QuadSolver library consists of a single class, also called QuadSolver. We’ve provided the code for QuadSolver and QuadDemo so that you can reproduce the example scenario for yourself. Because QuadSolver does all the heavy lifting for QuadDemo, you’ll need to debug QuadSolver in order to isolate the problem.Īt this point, you would find Java decompiler quite useful.

QuadDemo is now producing some confusing results.

Colleague A’s desktop HD unexpectedly dies, taking with it the only copy of the source of QuadSolver.

You write QuadDemo, which depends on QuadSolver you check your source into version control.

However, Colleague A neither commits the source to version control, nor deploys a source-code jar to the Maven repo.

Colleague A writes QuadSolver, a library that solves quadratic equations, and deploys it as a jar artifact to the corporate Maven repository.

Consider this somewhat contrived, but reasonably plausible scenario: And so, in spite of everything, source code still manages to go missing from time to time.

And just in case the building burns down, backup copies would routinely be taken safely off-site.īut here in the real world, we know the procedures and protocols intended to safeguard source code aren’t always followed rigorously and consistently. The version control archives would be regularly backed up. Every bit of source code you ever wrote would be stashed away in version control. In the best of all possible worlds, you wouldn’t need a decompiler. There are a variety of Java decompilers available, both as plugins for Java IDEs and for standalone use from the command line. class files as input and produces equivalent Java source code from them.Ī Java decompiler can help you understand or debug executable Java code for which the source code is not available. java source files and transforms them into. What is a Java Decompiler?Īs the name suggests, a decompiler is the opposite of a compiler.

In this article, we are going to explain what a Java Decompiler is and how to decompile classes using examples.

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