khelwood questions

khelwood answers

• Can't add ActionListener to a JPanel?
• What does vertical bar "|" (pipe) in function arguments type annotations mean?
• Using a literal number with 35660 digits raises SyntaxError
• Python inheritance, not returning new class
• Why the new capacity of arraylist is (oldCapacity * 3)/2 + 1?
• 'False' is removed from the list when removing other elements from list
• Refactoring "x if x is not None else y" to "x or y"
• Should I use 'not x' or 'x == 0' to check to see if the result of a modulo operation is zero in python
• Inheriting ArrayList property from superclass but assigning different types to it in child classes
• Implicit conversions in Python