Eclipse editor won't open

Question

My Eclipse cannot show the editor window.

Error:

Could not open the editor: The editor class could not be instantiated. This

Answer 1

Here was simple. Right-click in the class and choose the / open with / Java Editor, or Generic Text Editor option.

Aqui foi simples. Clique na classe com o botão direito e escolha a opção / open com / Editor Java, ou Editor de Texto Genérico.