E

elements (arrays), 150–160

ellipses (menus), 109

enabling/disabling (menus), 115–116

encapsulation (classes), 284–285

endless loops, 214

enum class, 287–288

error handling. See also debugging breakpoints

logical errors, 338–339

overview, 337

runtime errors (exceptions), 339–340, 343–345

syntax errors, 338

Error List window, 50

errors (variables), 152

event handling

classes, 330

controls, 330

functions, 247–248, 318

toolbar buttons, 124–125

exceptions. See runtime errors

Exit menus, 137

exiting loops, 215–217

expectations (menus), 106