Q&A

What is a package in C?

What is a package in C?

A package is a group of source (. c) and header files (. Each package should contain two header files. The external header file, named package. h, defines features visible from outside the package.

What are header files called in Java?

In Java the header files are called as packages. And instead of include statement , we use the import statement to include/import all the files containing classes, interfaces and sub-packages .

What is package in Java file?

A package in Java is used to group related classes. Think of it as a folder in a file directory. We use packages to avoid name conflicts, and to write a better maintainable code. Built-in Packages (packages from the Java API) User-defined Packages (create your own packages)

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What are header files in C?

A header file is a file containing C declarations and macro definitions (see Macros) to be shared between several source files. You request the use of a header file in your program by including it, with the C preprocessing directive ‘ #include ‘.

What is header file give list of header file used in C program?

The “#include” preprocessing directive is used to include the header files with “. h” extension in the program….Standard header files in C.

Sr.No. Header Files & Description
1 stdio.h Input/Output functions
2 conio.h Console Input/Output functions
3 stdlib.h General utility functions
4 math.h Mathematics functions

What is import package in Java?

To import java package into a class, we need to use java import keyword which is used to access package and its classes into the java program. Use import to access built-in and user-defined packages into your java source file so that your class can refer to a class that is in another package by directly using its name.

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What is a package in Java give an example?

Package in Java is a mechanism to encapsulate a group of classes, sub packages and interfaces. Packages are used for: Preventing naming conflicts. For example there can be two classes with name Employee in two packages, college.

What is a header file in C?

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.

What is the difference between header file and package in Java?

I got one difference only it is that we can access all methods or one method by package in java at a time, but in header files such type used of facilities are not possible. Header in c++ is for declaring methods. In that regard, an analogy in Java would be an interface class, not a package. Package is just a group of classes.

What is header header in C++ package?

Header in c++ is for declaring methods. In that regard, an analogy in Java would be an interface class, not a package. Package is just a group of classes. Using modifier protected allows visibility to all classes in the package.

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What is the difference between a header file and protected package?

Package is just a group of classes. Using modifier protected allows visibility to all classes in the package. Header files, as well as interfaces are used, when you have more classes with same methods that are implemented differently in each class. It basically saves time with declaring same methods in each class you want to use them in.

What is the difference between header and library files in C?

Header files in our program are included by using a command #include which is internally handle by pre-processor. Library files in our program are included in last stage by special software called as linker. Want to learn from the best curated videos and practice problems, check out the C Foundation Course for Basic to Advanced C.