Variable declaration in C: In C programming we need to declare variable which we will use throughout the code. Variable declaration means declaring the data types of the variable and the name of the variable. Through variable declaration we make clear that how much space that variable will require. C programming doesn’t support dynamic variable […]
Format specifier in C : The Format specifier is a string used in the formatted input and output functions. With the help of format specifiers the compiler understand that what is the data type of the variable while taking input through scanf() function and printing the output through printf() function. The format string always starts
“scanf()” statement: “scanf()” is a C library function from the header file “stdio.h”(stdio – standard input output), which allows the programmer to accept input from standard input devices(Keyboard). The taken input is stored in a variable. Example: C C #include<stdio.h> int main() { int a; printf(“Enter the value of a:”); scanf(“%d”,&a);// accepts the value of
“printf()” statement : “printf()” is a C library function from the header file “stdio.h”(stdio – standard input output), which sends the console output to stdout. Example : C C #include<stdio.h> int main() { printf(“Hello!”); // this printf function will print “Hello!” as the output. return 0; } Output Output Hello! “printf()” returns the number of
Type casting In c, it permits the mixing of constants and variables of different data types in an expression. Typecasting is defined as the conversion of the datatype of one variable to another data type. There are two ways of typecasting in c – 1. Implicit
The computer doesn’t understand the code we write, it needs to be converted into machine language with the use of a compiler. The compilation is a method whereby the source code is converted into object code. There are 4 phases through which a compilation process is done- 1. Preprocessor – The source code with extension
C language is rich in its data types. Storage representations and machine instructions to handle constants differs from machine to machine. The variety of data types available, allow the programmers to select the type appropriate to the needs of the application, as well as the machine. In a simple way, we can say that the
C language has a big set of built-in operators. An operator is a symbol to perform some mathematical or logical operations with data and variables. Operators can be classified into the following types: Arithmetic Operators Logical Operators Relational Operators Assignments Operators Bitwise Operators Arithmetic Operators : Arithmetic operators are used for mathematical operations in c.
What is header file ? In C programming language there are many standard pre-defined functions, that we can directly include in our code to make programming easy. There are many standard header file that is ready to use, or we can make our own header file(user defined header file). We have to include the header
What is Unary Operator in c ? unary operators are used for produce a new value. This operator require only one operand. Types of Unary operators: Unary minus(-) Increment (++) Decrement (–) NOT(!) Address operator(&) sizeof() Unary Minus (-) : It is a unary operator which is used for changing the sign of a variable.A
