how to call dll from java ??

i have created a dll in c# which maximize the window and i called it maximize.dll
how can i call it in java "netbeans"??

What you need is something call Java Native Interface(JNI). JNI Basis on CodeProject.

I'm afraid that you will need more than the JNI as this works with standard dll's but not with c# dlls which are very different. You may be able perhaps to connect the two by creating a c program that connects to the C# program via dllImport and to the Java program via JNI. Alternatively the two languages can communicate I believe via sockets.

Sorry about that. I've miss that. As you said Fubarable, C# is not a native language.