MasterCassim questions

MasterCassim answers

• send mail to Gmail account
• PHPUnit: How to assert that a class extends another class?
• Use Enum or String for a static factory method?
• One time password security risk
• Difference in time complexity in array addressing in Java
• MissingFormatArgumentException error
• How to ensure a certain methods gets called in abstract super-class from method in sub-class (Java)
• Increment behavior on strings - PHP easter egg?
• How do I denied user access script directly in URL
• Can I improve the resolution of Thread.Sleep?