Loading class defined in a string

Question

Is there a means to load a class defined as a string?

Example API

string classDef = "class MyClass { private int myVar; public setMyVar(int var) { myVar = var }}" Class c = loadClass(classDef);

onnoweb · Accepted Answer · 2017-10-09 21:19:02Z

2

Yes, you can compile and run Java code on the fly. See this blog post as an example: https://blog.frankel.ch/compilation-java-code-on-the-fly/#gsc.tab=0.

There might of course be all kinds of security concerns with compiling and running arbitrary code in your app.

answered Oct 9, 2017 at 21:19

onnoweb

3,03825 silver badges29 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

thanks for the link. This is useful, but I'm looking for the code to be in memory (String, byte[]) and not in a file.