Programming Articles - Page 1278 of 3363

File is collection of records or is a place on hard disk, where data is stored permanently.Operations on filesThe operations on files in C programming language are as follows −Naming the fileOpening the fileReading from the fileWriting into the fileClosing the fileSyntaxThe syntax for opening a file is as follows −FILE *File pointer;For example, FILE * fptr;The syntax for naming a file is as follows −File pointer = fopen ("File name", "mode");For example, fptr = fopen ("sample.txt", "r"); FILE *fp; fp = fopen ("sample.txt", "w");fgets( ) and fputs( ) functions fgets() is used for reading a string from a file.The ... Read More

A file is a collection of data stored in secondary memory. Files are used to store information that programs can determine. A file represents a sequence of bytes, Whether it is a text file or a binary file. It is a collection of records or is a location on the hard disk where data is stored permanently. Operations on Files The operations on files in the C programming language are as follows − Naming the file Opening the file Reading from the file Writing ... Read More

In this post, we will understand the difference between exit(0) and exit(1).exit(0)It is portable.It tells about the successful termination or completion of the program.It tells about the termination when the program is executed without any errors.The ‘EXIT_SUCCESS’ macro is used to return code 0.The ‘EXIT_SUCCESS’ can be defined as standard as zero.Syntaxexit(0);exit(1)It is not portable.It tells about the abnormal termination of the program.It tells about the termination if the program exited with certain error when the program was being executed.The ‘EXIT_FAILURE’ macro is used to return code 1.It is not restrict by standard to be 1 only.It can be used ... Read More

In this post, we will understand the difference between character array and string.StringsThey are immutable.Once they are defined, they can’t be changed.It refers to a sequence of characters, which is represented as a single data type.It contains built-in functions such as substring(), charAt().The ‘+’ operator can be used to append strings together, which would form a new string.The charAt() method helps access characters at a specific index within a ‘String’.These strings are stored in the ‘String Constant Pool’.It is not preferred to store passwords in strings in Java.A string can be converted to a character array using toCharArray() method of ... Read More

A file is a collection of data stored in secondary memory. Files are used to store information that programs can determine. A file represents a sequence of bytes, whether it is a text file or a binary file. It is a collection of records or a location on the hard disk where data is stored permanently. Operations on Files The operations on files in the C programming language are as follows − Naming the file Opening the file Reading from the file Writing into ... Read More

Recursion and Iteration both repeatedly execute the set of instructions. Recursion occurs when a statement in a function calls itself repeatedly. The iteration occurs when a loop repeatedly executes until the controlling condition becomes false. The basic difference between recursion and iteration is that recursion is a process always applied to a function and iteration is applied to the set of instructions which we want to be executed repeatedly. Read through this article to find out more about Recursion and Iteration and how they are different from each other. What is Recursion? Recursion is defined as a process in which a function calls itself repeatedly. Recursion uses selection structure. If the recursion step does ... Read More

File is collection of records or is a place on hard disk, where data is stored permanently.Need of filesEntire data is lost when a program terminates.Storing in a file preserves the data even if, the program terminates.If you want to enter a large amount of data, normally it takes a lot of time to enter them all.We can easily access the content of files by using few commands.You can easily move your data from one computer to another without changes.By using C commands, we can access the files in different ways.Operations on filesThe operations on files in C programming language ... Read More

In this post, we will understand the difference between inline and macro in C++.InlineIt is a function in C++.It is parsed by the compiler.It can be defined inside or outside the class.It evaluates the argument only once.The compiler may not convert all functions to ‘inline’ function and expand them all.The short functions that are defined inside the class are automatically made as inline functions.An inline function inside a class can access the data members of the class.Inline function can be terminated using curly brackets.It is easy to debug.This is because error checking is done during compilation.It binds all statements in ... Read More

File is collection of records or is a place on hard disk, where data is stored permanently.Need of filesEntire data is lost when a program terminates.Storing in a file preserves the data even if, the program terminates.If you want to enter a large amount of data, normally it takes a lot of time to enter them all.We can easily access the content of files by using few commands.You can easily move your data from one computer to another without changes.By using C commands, we can access the files in different ways.Operations on filesThe operations on files in C programming language ... Read More

A copy constructor is a type of constructor that uses another object from the same class that has been created previously, to initialize an object, whereas the assignment operator is used to assign a value to a variable. In this article, we will understand the difference between the copy constructor and the assignment operator in C++. Copy Constructor A copy constructor creates a new object by copying an existing object of the same class which has been created previously. It is of two types, i.e., Default and User-defined copy constructor. In the default copy constructor, ... Read More