Which header file is required by the C++ programming language to use the oops concept *?

1 Answer. The explanation: We need not include any specific header file to use OOP concept in C++, only specific functions used in code need their respective header files to be included or classes should be defined if needed.

Which header file must be used in C program?

You have to stdio. h header file in each and every C program code. The <stdio. h> header file is used for standard input and output operations such as reading data from the user using scanf() function and printing output on the screen using printf() function.

What is Oops header file?

A header file is a file with extension . h which contains C function declarations and macro definitions to be shared between several source files. There are two types of header files: the files that the programmer writes and the files that comes with your compiler.

Are header files required in C?

Yes, because it's still based on C. You can answer your own question: Don't use them and try to compile without them. If you can't, then the compilers still require them.

Which header file is required in C plus plus in OOP?

Which header file is required in C++ to use OOP? Explanation: We need not include any specific header file to use OOP concept in C++, only specific functions used in code need their respective header files to be included or classes should be defined if needed. 14.

C++ Header Files

What is the use of header file in C language?

header files are simply files in which you can declare your own functions that you can use in your main program or these can be used while writing large C programs. NOTE:Header files generally contain definitions of data types, function prototypes and C preprocessor commands.

Is iostream a header file?

iostream is a header file that provides declarations and prototypes that are an interface to part of the C++ standard library.

What does #include iostream?

iostream is the header file which contains all the functions of program like cout, cin etc. and #include tells the preprocessor to include these header file in the program.

Why are header files needed?

The primary purpose of a header file is to propagate declarations to code files. Header files allow us to put declarations in one location and then import them wherever we need them. This can save a lot of typing in multi-file programs.

How many header files are in C?

There are 19 header files in the Standard C Library.

What is required in each C program?

1 Answer. The correct answer to the question “What is required in each C program” is, option (a). The program must have at least one function. Any C program will have a function, and function is nothing but a piece of code.

What is #include in C?

The #include directive tells the C preprocessor to include the contents of the file specified in the input stream to the compiler and then continue with the rest of the original file. For example, the header file, file.h contains the following: char *func (void);

What are the different types of header files in C?

Which of the following is not an oops concept in C++?

Which among the following doesn't come under OOP concept? Explanation: Platform independence is not feature of OOP. C++ supports OOP but it's not a platform independent language. Platform independence depends on the programming language.

Which of the following is not an oops concept?

The correct answer to the question “Which of the following is not OOPS concept in Java” is option (d). Because there are 4 OOPS concepts in Java, and they are: Inheritance, Encapsulation, Polymorphism, And Abstraction. And Compilation is not a part of the OOPS concept in Java.

What is #include in C++?

#include is a way of including a standard or user-defined file in the program and is mostly written at the beginning of any C/C++ program. This directive is read by the preprocessor and orders it to insert the content of a user-defined or system header file into the following program.

What is iostream in C programming?

C++ input/output streams are primarily defined by iostream , a header file that is part of the C++ standard library (the name stands for Input/Output Stream). In C++ and its predecessor, the C programming language, there is no special syntax for streaming data input or output.

What is the use of #include conio H?

#include<conio. h> It is a header file used in c and cpp and it includes inbuilt functions like getch() and clrscr(). It stand for console input ouput i.e. it takes input from keyboard and displays it on screen. Common in built function like getch() clrscr() stored in <conio.

Why we use #include stdio h in C program?

stdio. h contains prototypes for standard input/output functions like scanf/printf. Without including this file, one will not be able to read input from keyboard or write output to screen.

How do header files work in C++?

To minimize the potential for errors, C++ has adopted the convention of using header files to contain declarations. You make the declarations in a header file, then use the #include directive in every . cpp file or other header file that requires that declaration.

What is source file in C?

Source file(. c): These files contain function definitions, and the entire program logics, these files are human readable and by convention their names end with . c . Header file(. h): These files contain function prototypes and various pre-processor statements.

Which of the following is the correct set of access specifier for C++? *?

How many types of access specifiers are provided in OOP (C++)? Explanation: Only 3 types of access specifiers are available. Namely, private, protected and public. All these three can be used according to the need of security of members.