best c interview questions and answers pdf Monday, April 26, 2021 4:07:22 PM

Best C Interview Questions And Answers Pdf

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Despite being almost 50 years old, C is still leading the programming scene from the forefront.

Top C Programming Interview Questions you Need to Master in 2021

C questions and answers. C questions and answers with explanation. Switch case. File handling. Command line arguments.

C questions and answers for interview. Questions for freshers 2. TCS placement question C Linux questions. Online Tests. C tutorials:. Data types. Advance c. Links to this post. Email This BlogThis! C interview questions and answers. C interview questions and answers for freshers. It is basic c language technical frequently asked interview questions and answers. Write a c program to print Hello world without using any semicolon.

Solution: 1. Solution: 2. Solution: 3. Swap two variables without using third variable. What is dangling pointer in c? Dangling pointer:. Such pointer is known as dangling pointer and this problem is known as dangling pointer problem.

For example:. What will be output of following c program? Output: Garbage value. Explanation : variable x is local variable. Its scope and lifetime is within the function call hence after returning address of x variable x became dead and pointer is still pointing ptr is still pointing to that location.

Solution of this problem:. Make the variable x is as static variable. In other word we can say a pointer whose pointing object has been deleted is called dangling pointer. Output: What is wild pointer in c?

A pointer in c which has not been initialized is known as wild pointer. Garbage value. Here ptr is wild pointer because it has not been initialized. There is difference between the NULL pointer and wild pointer. Older Posts Home. Subscribe to: Posts Atom.

C Interview Questions

C questions and answers. C questions and answers with explanation. Switch case. File handling. Command line arguments. C questions and answers for interview.

What are the fundamental principles of OO programming? Answer: As a developer, you might be tempted to answer that it comprises things like Encapsulation, Polymorphism, Abstraction, and Inheritance. Principles are crucial but they are not the most important aspect of what OO actually is. What is really important is to understand in what grounds OO is built upon, or in other words, what are the foundations of OO programming. The two most fundamental core concepts on which OO has been built upon in C are this pointer and Dynamic Dispatch.

50+ Best C Interview Questions

The only difference between a class and struct are the access modifiers. Struct members are public by default; class members are private. It is good practice to use classes when you need an object that has methods and structs when you have a simple data object. The answer is not Rather, the answer which will surprise many is , assuming 32 bit integers.

There are actually two ways you can do this. Likewise, the statement "x --" means to decrement the value of x by 1. When using Call by Value, you are sending the value of a variable as parameter to a function, whereas Call by Reference sends the address of the variable. Also, under Call by Value, the value in the parameter is not affected by whatever operation that takes place, while in the case of Call by Reference, values can be affected by the process within the function.

Thanks for your comments guys, good to know that you like these programming interview questions and find useful. I suggest to contribute on this with some unique programming questions you faced during interviews.

C programming Interview questions and answers

Dear readers, these C Programming Interview Questions have been designed specially to get you acquainted with the nature of questions you may encounter during your interview for the subject of C Programming. It de-refers twice to point to the data held by the designated pointer variable. By default every local variable of the function is automatic auto. Break can appear only with in the looping control and switch statement.

C is a mid-level and procedural programming language. The Procedural programming language is also known as the structured programming language is a technique in which large programs are broken down into smaller modules, and each module uses structured code. This technique minimizes error and misinterpretation. More details. C is known as a mother language because most of the compilers and JVMs are written in C language. It introduces new core concepts like arrays, functions, file handling which are used in these languages. C is called a mid-level programming language because it binds the low level and high -level programming language.


What is a pointer?.


C programming Interview questions and answers

C is the general and basic programming language that will create a base for other programming languages. C programming language was designed by Dennis Ritchie in Bells Lab. And it appeared around 46 years ago which is in and it was stably established on 11 December It is a crucial language of computer and it is coded in assembly language and it can run on from supercomputers to the embedded systems.

There are actually two ways you can do this. Likewise, the statement "x --" means to decrement the value of x by 1. When using Call by Value, you are sending the value of a variable as parameter to a function, whereas Call by Reference sends the address of the variable. Also, under Call by Value, the value in the parameter is not affected by whatever operation that takes place, while in the case of Call by Reference, values can be affected by the process within the function.

C is a computer programming language that was developed by Dennis Ritchie and released in the year The original purpose of this language was to develop a system programming language that can be used to write an operating system.

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