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Question-1. What is PascalABC.NET?
Answer-1: PascalABC.NET is a modern implementation of the Pascal language with support for .NET features.
Question-2. When was PascalABC.NET created?
Answer-2: PascalABC.NET was developed in the early 2000s by a group of developers at South Ural State University.
Question-3. What are the main features of PascalABC.NET?
Answer-3: Key features include .NET integration, object-oriented programming, and a powerful IDE.
Question-4. What is the file extension for PascalABC.NET programs?
Answer-4: The file extension for PascalABC.NET programs is .pas.
Question-5. What is the default entry point for a PascalABC.NET program?
Answer-5: The default entry point is the begin...end. block in the Main program.
Question-6. How do you declare a variable in PascalABC.NET?
Answer-6: Use the var keyword, e.g., var x: Integer;.
Question-7. What are the basic data types in PascalABC.NET?
Answer-7: Basic data types include Integer, Real, Char, String, and Boolean.
Question-8. How do you write a comment in PascalABC.NET?
Answer-8: Use { }, (* *), or // for comments.
Question-9. How do you output data in PascalABC.NET?
Answer-9: Use the Write or Writeln procedures.
Question-10. How do you read input from the user in PascalABC.NET?
Answer-10: Use the Read or Readln procedures.
Question-11. What is a procedure in PascalABC.NET?
Answer-11: A procedure is a block of code that performs a task and does not return a value.
Question-12. How do you define a procedure in PascalABC.NET?
Answer-12: Use the procedure keyword, e.g., procedure ShowMessage; begin ... end;.
Question-13. What is a function in PascalABC.NET?
Answer-13: A function is a block of code that performs a task and returns a value.
Question-14. How do you define a function in PascalABC.NET?
Answer-14: Use the function keyword, e.g., function Add(a, b: Integer): Integer; begin ... end;.
Question-15. How do you declare a constant in PascalABC.NET?
Answer-15: Use the const keyword, e.g., const Pi = 3.14;.
Question-16. How do you use arrays in PascalABC.NET?
Answer-16: Declare with array, e.g., var arr: array[1..10] of Integer;.
Question-17. What is a record in PascalABC.NET?
Answer-17: A record is a user-defined data type that groups related variables, e.g., type Person = record ... end;.
Question-18. How do you handle exceptions in PascalABC.NET?
Answer-18: Use the try...except...end block.
Question-19. How do you implement loops in PascalABC.NET?
Answer-19: Use loops like for, while, or repeat...until.
Question-20. How do you write a for loop in PascalABC.NET?
Answer-20: Example: for i := 1 to 10 do Writeln(i);.
Question-21. What is the case statement in PascalABC.NET?
Answer-21: The case statement is used for multi-way branching based on a variable?s value.
Question-22. How do you define a class in PascalABC.NET?
Answer-22: Use the type keyword, e.g., type TMyClass = class ... end;.
Question-23. What is inheritance in PascalABC.NET?
Answer-23: Inheritance allows a class to derive properties and methods from another class.
Question-24. How do you create an object in PascalABC.NET?
Answer-24: Use the new operator, e.g., var obj: TMyClass := new TMyClass;.
Question-25. What is the with statement in PascalABC.NET?
Answer-25: The with statement simplifies access to fields of a record or object.
Question-26. How do you declare an interface in PascalABC.NET?
Answer-26: Use the interface keyword, e.g., type IMyInterface = interface ... end;.
Question-27. What is method overloading in PascalABC.NET?
Answer-27: Method overloading allows multiple methods with the same name but different parameters.
Question-28. How do you work with strings in PascalABC.NET?
Answer-28: Strings can be manipulated using operators like + and functions like Length.
Question-29. What is the unit in PascalABC.NET?
Answer-29: A unit is a modular code structure used for code organization and reuse.
Question-30. How do you include a unit in PascalABC.NET?
Answer-30: Use the uses keyword, e.g., uses Math;.
Question-31. What is the difference between procedure and function?
Answer-31: A procedure does not return a value, while a function does.
Question-32. What is polymorphism in PascalABC.NET?
Answer-32: Polymorphism allows objects to be treated as instances of their base class.
Question-33. How do you perform file I/O in PascalABC.NET?
Answer-33: Use AssignFile, Rewrite, Reset, Read, Write, and CloseFile.
Question-34. How do you declare a pointer in PascalABC.NET?
Answer-34: Use the ^ symbol, e.g., var p: ^Integer;.
Question-35. How do you create a dynamic array in PascalABC.NET?
Answer-35: Use the SetLength function, e.g., SetLength(arr, 10);.
Question-36. What is the role of the constructor in PascalABC.NET?
Answer-36: The constructor initializes an object when it is created.
Question-37. How do you implement generics in PascalABC.NET?
Answer-37: Use the generic keyword, e.g., type TList
Question-38. What is an abstract class in PascalABC.NET?
Answer-38: An abstract class cannot be instantiated and is used as a base class for other classes.
Question-39. How do you declare an abstract method?
Answer-39: Use the abstract keyword, e.g., procedure DoSomething; abstract;.
Question-40. What is the Dispose method in PascalABC.NET?
Answer-40: Dispose is used to release memory allocated to an object.
Question-41. What is the sealed keyword?
Answer-41: The sealed keyword prevents a class from being inherited.
Question-42. How do you implement threads in PascalABC.NET?
Answer-42: Use the System.Threading namespace for thread management.
Question-43. What is the default property in PascalABC.NET?
Answer-43: The default property allows an array-like access to object properties.
Question-44. How do you create a DLL in PascalABC.NET?
Answer-44: Use the library keyword and define exported functions.
Question-45. What is the property keyword?
Answer-45: The property keyword defines getters and setters for object fields.
Question-46. What is the difference between public and private?
Answer-46: public members are accessible outside the class, while private members are not.
Question-47. How do you implement a lambda function in PascalABC.NET?
Answer-47: Use the -> operator, e.g., var add := (a, b) -> a + b;.
Question-48. What is an event in PascalABC.NET?
Answer-48: An event is a mechanism for signaling state changes in objects to subscribers.
Question-49. How do you use LINQ in PascalABC.NET?
Answer-49: Use LINQ for querying collections, e.g., arr.Where(x -> x > 10);.
Question-50. What are the advantages of PascalABC.NET?
Answer-50: Advantages include modern syntax, .NET integration, and a user-friendly IDE.
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