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C Programming Introduction Examples

<div dir="ltr" style="text-align: left;" trbidi="on"><div class="field-item even" property="content:encoded">This page contains example and source code on very basic features of C programming language. To understand the examples on this page, you should have knowledge of following topics:<ol> <li><a href="http://zen-tek.blogspot.in/2014/02/c-programming-variables-and-constants.html" title="Constants and Variables in C programming">Variables and Constants</a></li><li><a href="http://zen-tek.blogspot.in/2014/02/c-programming-data-types.html" title="Data types in C programming">Data Types</a></li><li><a href="http://zen-tek.blogspot.in/2014/02/c-programming-input-output-io.html" title="C Programming Input/Output">Input and Output in C programming</a></li><li><a href="http://zen-tek.blogspot.in/2014/02/c-programming-operators.html" title="Operators in C programming">Operators</a></li></ol><h2>C Introduction Examples</h2><table summary="Source code and Examples on Introductory features of C programming Language"><thead><tr><th>C Programming Introduction Examples</th></tr></thead><tbody><tr> <td><a href="http://zen-tek.blogspot.in/2014/02/c-program-to-print-sentence.html">C Program to Print a Sentence</a></td></tr><tr> <td><a href="http://zen-tek.blogspot.in/2014/02/c-program-to-print-integer-entered-by.html">C Program to Print a Integer Entered by a User</a></td></tr><tr> <td><a href="http://zen-tek.blogspot.in/2014/02/c-program-to-add-two-integers.html">C Program to Add Two Integers Entered by User</a></td></tr><tr> <td><a href="http://zen-tek.blogspot.in/2014/02/c-program-to-multiply-two-floating.html">C Program to Multiply two Floating Point Numbers</a></td></tr><tr> <td><a href="http://zen-tek.blogspot.in/2014/02/c-program-to-find-ascii-value-of.html">C Program to Find ASCII Value of Character Entered by User</a></td></tr><tr> <td><a href="http://zen-tek.blogspot.in/2014/02/c-program-to-find-quotient-and.html">C Program to Find Quotient and Remainder of Two Integers Entered by User</a></td></tr><tr> <td><a href="http://zen-tek.blogspot.in/2014/02/c-program-to-find-size-of-int-float.html">C Program to Find Size of int, float, double and char of Your System</a></td></tr><tr> <td><a href="http://zen-tek.blogspot.in/2014/02/c-program-to-demonstrate-working-of.html">C Program to Demonstrate the Working of Keyword long</a></td></tr><tr> <td><a href="http://zen-tek.blogspot.in/2014/02/c-program-to-swap-two-numbers.html">C Program to Swap Two numbers Entered by User</a></td></tr></tbody></table> </div> </div>

C Programming C Programming Introduction Examples

This page contains example and source code on very basic features of C programming language. To understand the examples on this page, you sh...

C Program to Swap Two Numbers

Haxjer Hunt 0

<div dir="ltr" style="text-align: left;" trbidi="on"><div class="field-item even" property="content:encoded">This program asks user to enter two numbers and this program will swap the value of these two numbers. <h2>Source Code to Swap Two Numbers</h2><pre class="prettyprint"><code> #include <stdio.h> int main(){ float a, b, temp; printf("Enter value of a: "); scanf("%f",&a); printf("Enter value of b: "); scanf("%f",&b); temp = a; /* Value of a is stored in variable temp */ a = b; /* Value of b is stored in variable a */ b = temp; /* Value of temp(which contains initial value of a) is stored in variable b*/ printf("\nAfter swapping, value of a = %.2f\n", a); printf("After swapping, value of b = %.2f", b); return 0; } </code> </pre>Output <pre><samp> Enter value of a: 1.20 Enter value of b: 2.45 After swapping, value of a = 2.45 After swapping, value of b = 1.2 </samp></pre> </div> </div>

C Programming C Program to Swap Two Numbers

This program asks user to enter two numbers and this program will swap the value of these two numbers. Source Code to Swap Two Numbers #incl...

C Program to Find Size of int, float, double and char of Your System

Haxjer Hunt 0

<div class="field-item even" property="content:encoded">The size of a character is always 1 byte but, size of int, float and double variables differs from system to system. This program will compute the size of int, float, double and char of you system using sizeof operator. The syntax of size of operator is:<pre title="Syntax of sizeof()"> temp = sizeof(operand); /* Here, temp is a variable of type integer,i.e, sizeof() operator returns integer value. */ </pre><h2>Source Code</h2><pre class="prettyprint" title="C program to compute size of variable using size of operator"><code> /* This program computes the size of variable using sizeof operator.*/ #include <stdio.h> int main(){ int a; float b; double c; char d; printf("Size of int: %d bytes\n",sizeof(a)); printf("Size of float: %d bytes\n",sizeof(b)); printf("Size of double: %d bytes\n",sizeof(c)); printf("Size of char: %d byte\n",sizeof(d)); return 0; }</code></pre>Output<pre><samp>Size of int: 4 bytes Size of float: 4 bytes Size of double: 8 bytes Size of char: 1 byte</samp></pre>Note: You may get different output depending upon your system.ExplanationIn this program, 4 variables <var>a</var>, <var>b</var>, <var>c</var> and <var>d</var> are declared of type int, float, double and char respectively. Then, the size of these variables is computed using sizeof operator and displayed. </div>

C Programming C Program to Find Size of int, float, double and char of Your System

The size of a character is always 1 byte but, size of int, float and double variables differs from system to system. This program will compu...

C Program to Find Quotient and Remainder of Two Integers Entered by User

Haxjer Hunt 1

<div dir="ltr" style="text-align: left;" trbidi="on"><div class="field-item even" property="content:encoded">In this program, user is asked to enter two integers(dividend and divisor) and this program will compute the quotient and remainder and display it. <h2>Source Code</h2><pre class="prettyprint" title="Source Code to compute remainder and quotient"><code> /* C Program to compute remainder and quotient */ #include <stdio.h> int main(){ int dividend, divisor, quotient, remainder; printf("Enter dividend: "); scanf("%d",&dividend); printf("Enter divisor: "); scanf("%d",&divisor); quotient=dividend/divisor; /* Computes quotient */ remainder=dividend%divisor; /* Computes remainder */ printf("Quotient = %d\n",quotient); printf("Remainder = %d",remainder); return 0; }</code></pre>Output <pre>Enter dividend: 25 Enter divisor: 4 Quotient = 6 Remainder = 1 </pre>Explanation <a name="more"></a> This program takes two integers(dividend and divisor) from user and stores it in variable <var>dividend</var> and <var>divisor</var>. Then, quotient and remainder is calculated and stored in variable <var>quotient</var> and <var>remainder</var>. Operator / is used for calculation of quotient and % is used for calculating remainder. Learn more about <a href="http://zen-tek.blogspot.in/2014/02/c-programming-operators.html#arithmetic">divison(/) and modulo division(%) operator in C programming</a> You can also program can be performed using only two variables as: <pre class="prettyprint" title="Source Code to compute remainder and quotient"><code> /* C Program to compute and display remainder and quotient using only two variables */ #include <stdio.h> int main(){ int dividend, divisor; printf("Enter dividend: "); scanf("%d",&dividend); printf("Enter divisor: "); scanf("%d",&divisor); printf("Quotient = %d\n",dividend/divisor);/* Computes and displays quotient */ printf("Remainder = %d",dividend%divisor); /* Computes and displays remainder */ return 0; }</code></pre>Output of this program is same as program above but, only two variables are used in this case instead of four variables. </div> </div>

C Programming C Program to Find Quotient and Remainder of Two Integers Entered by User

In this program, user is asked to enter two integers(dividend and divisor) and this program will compute the quotient and remainder and disp...

C Program to Find ASCII Value of a Character

Haxjer Hunt 0

<div dir="ltr" style="text-align: left;" trbidi="on"><div class="field-item even" property="content:encoded">Every character in C programming is given an integer value to represent it. That integer value is known as ASCII value of that character. For example: ASCII value of 'a' is 97. Here is the complete list of <a href="http://zen-tek.blogspot.in/2014/02/ascii-character-codes.html" title="ASCII value of characters">ASCII value of characters in C programming</a>. When a character is stored in variable of type <code>char</code>, the ASCII value of character is stored instead of that character itself character itself. For example: If you try to store character 'a' in a char type variable, ASCII value of that character is stored which is 97. In, this program user is asked to enter a character and this program will display the ASCII value of that character. <h2>Source Code</h2><pre class="prettyprint" title="Program to Display ASCII value of Character"><code> /* Source code to find ASCII value of a character entered by user */ #include <stdio.h> int main(){ char c; printf("Enter a character: "); scanf("%c",&c); /* Takes a character from user */ printf("ASCII value of %c = %d",c,c); return 0; }</code></pre>Output <pre>Enter a character: G ASCII value of G = 71</pre>Explanation In this program, user is asked to enter a character and this character will be stored in variable <var>c</var>, i.e., the ASCII value of that character is stored in variable<var> c</var>. When, this value is displayed using <a href="http://zen-tek.blogspot.in/2014/02/c-programming-input-output-io.html" title="Format string %c in C programming">conversion format string %c</a>, the actual variable is displayed but, when this variable is displayed using <a href="http://zen-tek.blogspot.in/2014/02/c-programming-input-output-io.html" title="Format string %d in C programming">format string %d</a>, the ASCII value of that character is displayed. </div> </div>

C Programming C Program to Find ASCII Value of a Character

Every character in C programming is given an integer value to represent it. That integer value is known as ASCII value of that character. Fo...

C Program to Multiply two Floating Point Numbers

Haxjer Hunt 2

<div dir="ltr" style="text-align: left;" trbidi="on"><div class="field-item even" property="content:encoded">In this program, user is asked to enter two floating point numbers and this program will mulitply these two numbers and display it.<h2>Source Code</h2><pre class="prettyprint" title="Source Code to multiply two floating point numbers"><code> /*C program to multiply and display the product of two floating point numbers entered by user. */ #include <stdio.h> int main( ) { float num1, num2, product; printf("Enter two numbers: "); scanf("%f %f",&num1,&num2); /* Stores the two floating point numbers entered by user in variable num1 and num2 respectively */ product=num1*num2; /* Performs multiplication and stores it */ printf("Product: %f",product); return 0; }</code></pre>Output<pre><samp>Enter two numbers: 2.4 1.1 Sum: 2.640000</samp></pre>ExplanationIn this program, user is asked to enter two floating point numbers. These two numbers entered by user will be stored in variables <var>num1</var> and <var>num2</var> respectively. This is done using <code>scanf( )</code> function. Then, * operator is used for multiplying variables and this value is stored in variable <code>product</code>.<img alt="Multiplication of two floating point numbers in C programming" class="figure" src="/sites/tutorial2program/files/c-programming-multiplication.jpg" style="width: 500px; height: 137px; ">Then, the product is displayed and program is terminated. </div> </div>

C Programming C Program to Multiply two Floating Point Numbers

In this program, user is asked to enter two floating point numbers and this program will mulitply these two numbers and display it. Source C...

C Programming Introduction Examples

C Program to Swap Two Numbers

C Program to Find Size of int, float, double and char of Your System

C Program to Find Quotient and Remainder of Two Integers Entered by User

C Program to Find ASCII Value of a Character

C Program to Multiply two Floating Point Numbers

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