Posts

Showing posts from November 13, 2019

Operators

By -
What are the operators and the operands? Example:  1+2=5 Operators: Here the symbol (+) which adds 1and 2 is called as an operator. So, the operator is the symbol used to perform the operation. Operands: Here 1 & 2 are called as operands or data. What operators can do? An operator performs the operation for this they need data or operand. Without any operands, operators can not perform their operations. There are several types of operators in C language/mathematics. Before we understand Operators in C. First let us understand what is arithmetic instructions? Arithmetic instruction: It contains variables on the left side of = (Assignment operator) and variable names. Constants on right side of = (assignment operator). An instruction which is used to manipulate(to change/control) data using operators, is known as Arithmetic operators. Example:  5+10*3 45 or 150 If you solve from left to right then your answer will be 45. But if you sol...
Post a Comment
Read more

Popular posts from this blog

Getting input in C

By -
                 Getting input in C There are two ways to get input from user in C language. 1) By scanf() function 2) By gets() or fgets() function 1. By scanf() function:-            The standard input-output header file named stdio.h   contains the definition of the function printf()   and scanf(), which are used to display on the screen and to take input from user. Program:-   #include < stdio . h > void main ( ) { // defining a variable int x ; /* displaying message on the screen asking the user to input a value */ printf ( "Please enter a value..." ) ; /* reading the value entered by the user */ scanf ( "%d" , &x ) ; /* displaying the number as output */ printf ( "\nYou entered: %d" , x ) ; } Output:- Please enter a value... The Output was aski...
Read more

Unary Operator

By -
What is a Unary Operator? Unary Operators are the operators which require only one operand. While binary operator requires two operands and tertiary requires three operands. Unary operators are: +, -, ++, --, sizeof() 1) + and -   Note: (+) and (-) are not of addition and subtraction but it denotes only sign of operator as positive or negative. Ex. +1, +2, +3... -1, -2, -3... 2) ++ and -- It seems to be  ++ (two plus-plus), But it is a single operator. It is called the increment operator . Increment operator are of two type: i) Pre increment ii) Post increment The meaning of both the increments is the same. i.e To add +1 in  any value x++ or ++x; or to increase the value by 1. x++ is x=x+1 where x is a variable. Example: 7++ output is 8 25++ output is 26 program: (Pre-increment)  #include <stdio.h> #include <conio.h> int main() {     int x=7;     ++x;  / /Whe...
Read more