Questions tagged as 'netbeans'

I have different packages in my project, and by mistake, I ended up creating two classes with the same name, let's assume Student.java, but in different packages. I deleted one of them, and even after clearing the Netbeans cache, it no longer...

The error is as follows (remembering that only happens in javaFX, in swing everything works normal): Exception in Application start method java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Meth...

Database entity classes mapped to a previous project that was deleted continue to appear if I create a new project with the same name. How to solve with Netbeans 8.2 and Glassfish 4.1 Enterprise application?     

I have jbutton in the main class, so I put it as public to be able to access from another class. but you are not doing the right thing public class piscarbt{ tela t = new tela(); public void piscar(){ t.jButton1.setBackground(Color.whit...