Delphi Programming Interview Questions and Answers

Delphi Programming Interview Questions and Answers

Embarcadero Delphi is an integrated development environment (IDE) for desktop, mobile, web, and console applications. It’s also an event driven language. Delphi’s compilers use their own Object Pascal dialect of Pascal and generate native code for several platforms: Windows (x86 and x64), OS X (32-bit only), iOS (32 and 64-bit), Android and Linux (64-bit Intel). Currently Embarcadero Delphi, known formerly as CodeGear Delphi & Borland Delphi (1995–2008), is an IDE for Microsoft Windows based application development.

Embarcadero Delphi 10.2 Tokyo, on March 22, 2017 Embarcadero released RAD Studio 10.2 Tokyo, adding 64-bit Linux support, limited to console and non-visual applications. In addition, this release features RTL and IDE improvements, multi-tenancy support in RAD server and improved database capabilities. Current version of Delphi 10.2.1 Tokyo / August 8, 2017

What is Delphi?

What is New in Delphi 10.2.2?

What are the advantages of Delphi?

How does Delphi handle Windows callbacks?

How much disk space, memory, etc.? Do I need to run Delphi?

How is the memory used within an object in Delphi?

Explain pointers in Delphi? What are the different types of pointers used in Delphi?

What is NILing pointers?

What is the difference between client-only and client-server packages?

What are records in Delphi?

What is Enumerations?

What is the difference between Delphi and Delphi Client/Server?

What is object orientation in Delphi?

What are memory leaks?

Write a program to show the memory leak?

What is the function of Inheritance in Delphi?

What is RTTI? How does Run-Time Type Information (RTTI) work?

What is stored in the RTTI?

Explain FindFirst, FindNext and FindClose in Delphi?

What are the different types of inheritance present in Delphi?

How does inheritance operate when using the object of the classes?

What are the different types of object allocations methods in Delphi?

Why is there no automation in releasing the memory automatically during the termination of the program?

How do I write a change password function for a Paradox table?

How do abstract classes differ from Interfaces?

What is the function of Dynamic arrays?

What are the reasons involved in using the interface?

What is Microsoft access? What is the procedure to connect Delphi application to MS access database?

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