No Main class found in NetBeans

Right click on your Project in the project explorer Click on properties Click on Run Make sure your Main Class is the one you want to be the entry point. (Make sure to use the fully qualified name i.e. mypackage.MyClass) Click OK. Run Project šŸ™‚ If you just want to run the file, right click … Read more

Python Quicksort Runtime Error: Maximum Recursion Depth Exceeded in cmp

You have simply hit the recursion limits. Your list of names is too large for Python’s limited recursion capabilities. Your Quicksort works just fine otherwise. You could raise the recursion limit by setting the limit higher with sys.setrecursionlimit(). You can set it a fair amount higher, but you do so at your own risk. A better option is … Read more

Understanding error “terminate called after throwing an instance of ‘std::length_error’ what(): basic_string::_S_create Aborted (core dumped)”

This part of the code is suspicious: Your array has length 9, so the valid indices in it range from 0, 1, 2, …, 8. On iteration 8, the indicated line will try to read array index 9, which isn’t valid. This results in undefined behavior, which in your case is a misleading error message … Read more

MVC5 / C# – Cannot perform runtime binding on a null reference

There are two issues in your code: Consider this: This simplified piece of code throws Cannot perform runtime binding on a null reference since speakers is not defined (null reference). You can fix it by defining speakers in the dynamic ViewBag before the loop: The second issue: speakers in your code is a List, you might want to define ViewBag.speakers as a List<List<string>> and call .Add(speakers) instead … Read more

Recursion in Python? RuntimeError: maximum recursion depth exceeded while calling a Python object

Python lacks the tail recursion optimizations common in functional languages like lisp. In Python, recursion is limited to 999 calls (see sys.getrecursionlimit). If 999 depth is more than you are expecting, check if the implementation lacks a condition that stops recursion, or if this test may be wrong for some cases. I dare to say that … Read more