C Program to String Reverse

It is a basic C program to reverse a string.
In this c programming example user input a string and get reverse of accepted string.

Aim - C program to reverse accepted string [Using strrev function]

Program Code

//String Reverse using strrev function
#include"stdio.h"
#include"conio.h"
#include"string.h"
void main()
{
   char str[20];
   clrscr();
   printf("********* String Reverse Using strrev Function *******\n");
   printf("Enter a string:  ");
   gets(str);
   strrev(str);
   printf("\n Reverse string is:  %s",str);
   getch();
}

Output

Aim - C program to reverse accepted string [without using strrev function]

Program Code

//String Reverse without using strrev function
#include"stdio.h"
#include"conio.h"
#include"string.h"
void main()
{
 char str1[20],str2[20];
 int i,j=0;
 clrscr();
 printf("***********String Reverse*********\n");
 printf("Enter String:");
 gets(str1);
 for(i=strlen(str1)-1;i>=0;i--,j++)
 {
  str2[j]=str1[i];
 }
 str2[j]=NULL;
 printf("\nReverse String is:");
 puts(str2);
 getch();
}

Output

C Program to Find Armstrong Series

It is a sample c program to generate Armstrong number series from 1 to 1000. 

Program Source Code
//C Program to Find All Armstrong Number between 1 to 1000.
#include"stdio.h"
#include"conio.h"
void main()
{
  int no,r,sum=0,i;
  clrscr();
  printf("\n\n***The Armstrong No. Series Between 1 and 1000 are:***  ");
  for(i=1;i<=1000;i++)
  {
   sum=0;
   no=i;
   while(no!=0)
   {
    r=no%10;
    no=no/10;
    sum=sum+(r*r*r);
   }
   if(sum==i)
    printf("\n%d",i);
  }
   getch();
}

Output

Find Fibonacci Series Using Recursion in C Programming

It is sample C program which demonstrate how to use recursion concept in c programming. Here is a recursion program which accept a number from user and generate Fibonacci series using recursion.

Program Code

//Find Fibonacci Series Using Recursion in C Programming
#include"stdio.h"
#include"conio.h"
fibonacci(int n);
void main()
{
 int n,r,i;
 clrscr();
 printf("********** Fibonacci Series Using Recursion *********\n");
 printf("enter a number: ");
 scanf("%d",&n);
 printf("\n\n");

 for(i=0;i<=n;i++)
 {
  r=fibonacci(i);
  printf("\t%d",r);
 }
 getch();
}

fibonacci(int n)
{
 int f;
 if((n==1)||(n==2))
  return(1);
 else if(n==0)
  return(0);
 else
  f=fibonacci(n-2)+fibonacci(n-1);
 return(f);
}

Output

Function Example in PL/SQL Oracle

It is a sample pl/sql oracle example which have a function cube1 and a program. When a function calls accepted number(no) from user is passed as a argument and output of cube1 function is return value to variable(res).

Aim - PL/SQL program to accept a number from user and display its cube(num^3) value using function.

Function:-
First Execute Function PL/SQL block

create or replace function cube1(no in number) return number IS result number(8);
begin
  result:=(no*no*no);
  return result;
exception
  when no_data_found then
  return 'error';
end;

Program: -
Second Execute PL/SQL Program

declare
 no number(5);
 res number(10);
begin
  no:=&no;
  res:=cube1(no);
  dbms_output.put_line('Cube of ' || no || ' is '|| res);
end;

Output: -
Enter value for no: 6
old 5: no:=&no;
new 5: no:=6;
Cube of 6 is 216

PL/SQL Program to reverse a string

This is a sample PLSQL example to accept a string from user and print reverse of accept string.

Aim - PL/SQL Program to reverse a string.

Sample PLSQL Program: -

declare
  str1 varchar2(30);
  len number(3);
  str2 varchar2(30);
  i number(3);
begin
  str1:='&str1';
  len:=length(str1);
  for i in reverse 1..len
   loop
    str2:=str2 || substr(str1,i,1);
   end loop;
  dbms_output.put_line('Reverse string is: '||str2);
end;




Output of PL SQL Block: -
Enter value for str1: hello
old   6:   str1:='&str1';
new   6:   str1:='hello';
Reverse string is: olleh

C program for Binary Search

Hello, Today I am sharing how to implement Binary Search in C Programming 

language. Here is the basic algorithm for binary search:

C program for binary search :

#include<stdio.h>

int main(){

  int a[8];

  int i,x,first,last,mid;

printf("\nEnter 8 sorted elements like 

               [2 4 7 9 12 13 16 20]");

for(i=0;i<8;i++)

{

scanf("%d",&a[i]);

}

printf("\nYou entered following numbers:");

for(i=0;i<8;i++){

printf(" %d",a[i]);

}

printf("\nEnter the number you want to search: ");

scanf("%d",&x);

  

first=0,last=n-1;

while(first<=last){

      mid=(first+last)/2;

      

 if(x==a[mid]){

printf("\nThe number is found at %d", mid);

        return 0;

      }

      else if(x<a[mid]){

last=mid-1;

      }

      else

first=mid+1;

}

    printf("\nThe number is not in the list");

return 0;

}

I hope you this post is helpful for you. Thanks for reading.

How to send email using PHP on WAMP

Hello guys, Today I was trying to fix my friends code problem, He was just trying to send email using php which was running on WAMP Server. Then I recollected this details and shared with him. Here is the step by step guide:

PHP Code for sending an email using mail() function :

<?php
 $toAddress = "user@sampleexamples.com";
 $emailSubject = "Sample Email";
 $emailBody = "Hello,\n\n\nJust Tesing This Code?";
 if (mail($
toAddress

, $
emailSubject 


, $
emailBody




)) {






   echo("<p>Email successfully sent!</p>");
  } else {
   echo("<p>Error: Email delivery failed...</p>");
  }
 ?>

Configuration in php.ini :

To make the above coe work, you have to set few value in your php.ini of your WAMP installation. Its quit easy to do this, just find your php.ini and replace the default values with the appropriate . 


; For Win32 only.
SMTP = mail.example.come ; for Win32 only
smtp_port = 25
sendmail_from= admin@example.com ; for Win32 only



Now you can use this code for sending emails using your php server which is running either on localhost or on some live domain.

I hope this information is helpful to you. Please share your comments.
Thanks for reading.

Hello World program in Java

Here is the basic java program which will help java beginners.
In every programming language when we initially starts learning,
we always find the "Hello World" program in books.
So in java same program is the first step for you to start with.


Here is the sample "Hello World" Program:

public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello, World");
    }
}

Please follow these steps to compile and execute this HelloWorld program.

Open notepad or any type of text editor.
Copy and paste above code into that text editor.
Save that file and named it as "HelloWorld.java"
Goto command prompt and compile this program using javac command 

c:\path\to\file\>javac HelloWorld.java
This will generate a HelloWorld.class file

Now for executing that class file you have to issue following java command

c:\path\to\file\>java HelloWorld

You will see Hello, World as the output.





I hope this post helped you in your learning. Please ask your questions by comments.

How to use document.write in JavaScript?

Hello guys, Today I am sharing very basic method of javascript which is "document.write()".
Using document.write you can write inside a html document using javascript.

A very basic hello world example is below:

<script type="text/javascript">
document.write("<p>Hello World</p>");
</script>

To understand document.write function in more depth, I am sharing few more simple usage of this function.

<script type="text/javascript">

var sampleText="Sample Example of Document.write function";

document.write("<p>"+sampleText+"</p>");

</script>

Printing date using document.write function:

<script type="text/javascript">

var sampleText="Sample Example of Document.write function";

document.write("<p>"+Date()+"</p>");

</script>

Using document.write function inside a function:

<script type="text/javascript">

function f1() {

document.write('hello world');

}

</script>

<script type="text/javascript">

f1();

document.write('Ba Bye');

</script>

Overriding whole document's content using document.write function:

<script type="text/javascript">

function f1() {

document.write('Some text');//for overwrite entire page content

}

window.onload = w1;

</script>

I hope you like this post. Please share your feedback by commenting below.