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Question-1. How do you handle exceptions in Cobra?
Answer-1: Using try-catch: try x = 1/0 catch print("Error occurred")
Question-2. What are list comprehensions in Cobra?
Answer-2: A concise way to create lists: nums = [x * x for x in range(10)]
Question-3. Does Cobra support multiple inheritance?
Answer-3: No, but it allows interface-based polymorphism.
Question-4. What is an interface in Cobra?
Answer-4: A collection of method signatures: interface Animal def speak()
Question-5. How do you implement an interface?
Answer-5: class Dog, Animal def speak() print("Woof!")
Question-6. How do you check if a variable is null in Cobra?
Answer-6: Using if x then or if x != null.
Question-7. How do you write a single-line comment in Cobra?
Answer-7: Using #: # This is a comment.
Question-8. How do you write a multi-line comment in Cobra?
Answer-8: Using triple quotes: """ This is a multi-line comment """
Question-9. What is the equivalent of elif in Cobra?
Answer-9: elseif: if x == 1 print("One") elseif x == 2 print("Two")
Question-10. What are require and ensure in Cobra?
Answer-10: Used for preconditions (require) and postconditions (ensure) in functions.
Question-11. How do you import a module in Cobra?
Answer-11: Using use: use System.IO
Question-12. How do you write a file in Cobra?
Answer-12: f = File("test.txt", "w") f.write("Hello") f.close()
Question-13. How do you read a file in Cobra?
Answer-13: f = File("test.txt", "r") print(f.read())
Question-14. What is a tuple in Cobra?
Answer-14: An immutable sequence: t = (1, "hello", 3.5)
Question-15. How do you declare a dictionary in Cobra?
Answer-15: dict = ["key1" => "value1", "key2" => "value2"]
Question-16. How do you access dictionary values?
Answer-16: Using keys: print(dict["key1"])
Question-17. What is an enum in Cobra?
Answer-17: A type with fixed values: enum Color Red, Green, Blue
Question-18. Does Cobra support lambda functions?
Answer-18: Yes: square = (x) => x * x
Question-19. What is an assertion in Cobra?
Answer-19: A runtime check: assert x > 0
Question-20. How do you format strings in Cobra?
Answer-20: Using {} placeholders:
Question-21. What is a range in Cobra?
Answer-21: A sequence generator: for i in range(1, 10) print(i)
Question-22. How do you reverse a list in Cobra?
Answer-22: Using reverse(): nums.reverse()
Question-23. Can Cobra call C functions?
Answer-23: Yes, using C interop.
Question-24. Does Cobra support metaprogramming?
Answer-24: Yes, it allows reflection and dynamic code execution.
Question-25. What is the match statement in Cobra?
Answer-25: Similar to a switch statement: match x case 1 print("One") case 2 print("Two")
Question-26. How do you create a thread in Cobra?
Answer-26: Using the thread keyword: thread def run() print("Running in a thread")
Question-27. How do you define a generic function in Cobra?
Answer-27: def identity[T](x as T) as T return x
Question-28. What is a decorator in Cobra?
Answer-28: A way to modify functions/classes: @log def myFunction() print("Hello")
Question-29. How do you concatenate strings in Cobra?
Answer-29: Using +: fullName = firstName + " " + lastName
Question-30. Can Cobra run on multiple platforms?
Answer-30: Yes, it is cross-platform.
Question-31. What is the main advantage of Cobra over Python?
Answer-31: Cobra has better performance due to static typing and contract-based programming.
Question-32. What is Cobra?s performance compared to Java?
Answer-32: Faster than Python, but slower than Java for large applications.
Question-33. How do you install Cobra?
Answer-33: Download the compiler from the official Cobra website and set up the environment.
Question-34. What is the future of Cobra?
Answer-34: The project is no longer actively maintained, but it is still used in niche areas.
Question-35. What is Cobra?
Answer-35: Cobra is a statically and dynamically typed programming language that supports contracts, unit tests, and type inference.
Question-36. Who developed Cobra?
Answer-36: Cobra was created by Charles Childers.
Question-37. What is the primary use case of Cobra?
Answer-37: Cobra is designed for general-purpose programming, with strong support for scripting, rapid prototyping, and software development.
Question-38. Which programming paradigms does Cobra support?
Answer-38: Cobra supports object-oriented, functional, and contract-based programming.
Question-39. What makes Cobra different from other languages?
Answer-39: It has built-in contracts, unit tests, dynamic and static typing, and Python-like syntax.
Question-40. How do you declare a variable in Cobra?
Answer-40: Using var for dynamic typing: var x = 10 or explicitly x as int = 10.
Question-41. What is a contract in Cobra?
Answer-41: A contract enforces conditions on methods and functions, ensuring correctness.
Question-42. How do you define a class in Cobra?
Answer-42: Example:class Person var name as String def init(n as String) name = n
Question-43. What is type inference in Cobra?
Answer-43: The ability to automatically determine data types without explicit declaration.
Question-44. How does Cobra support unit testing?
Answer-44: Using the test keyword: test assert (2 + 2) == 4
Question-45. What is the is operator in Cobra?
Answer-45: It checks type compatibility. Example: if obj is String then print("It's a string").
Question-46. How do you define a function in Cobra?
Answer-46: Example: def add(x as int, y as int) as int return x + y
Question-47. What is optional static typing in Cobra?
Answer-47: Cobra allows both dynamically and statically typed variables.
Question-48. How does Cobra handle null safety?
Answer-48: Cobra has non-nullable types by default, reducing null reference errors.
Question-49. How do you loop in Cobra?
Answer-49: Using for or while: for i in range(5) print(i)
Question-50. What is the main entry point in a Cobra program?
Answer-50: The main method: def main() print("Hello, Cobra!")
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