Asynchronous file upload - PHP & AJAX

 Asynchronous file upload - PHP & AJAX Asynchronous file uploads is quote popular feature in modern AJAX web-applications. However standard AJAX classes (XmlHttpRequest) does not have capabilities to process or send files selected with "file dialog" (input type="file"). This article contains example application (trivial file-sharing service, like rapidshare, megaupload or yousendit) which uses embedded frames (IFRAME) to upload file. While file is uploaded to hidden frame, user can still access web-page and fill "file description"...

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Ajax - Epic outcome of web

Asynchronous JavaScript and XML - AJAX Ajax is of the most important technologies for the development of highly interactive web application and due to its features it have become extremely popular these days. What is Ajax?                     Asynchronous JavaScript and XML or Ajax for short is new web development technique used for the development of most interactive website. Ajax helps you in making your web application more interactive by retrieving small amount of data from web server...

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NPTEL programming in C - Printing Right Triangles

You are given a positive integer N. You have to print N rows as follows. The first row consists of one 0, the second row 2 zeroes, and so on, until the Nth row, which consists of N zeroes. Note : NPTEL follows gcc compiler which doesn't supports conio.h package and it always to be started as int main() and should return a integer value #include<stdio.h> int main() { int i,j,n; scanf("%d",&n); for(i=0;i<n;i++) { for(j=0;j<=i;j++) { printf("0"); } printf("\n"); } return 0; } &nbs...

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NPTEL Programming in c - Sums of Powers of Numbers

In this program, you are given an input N, which is a positive integer less than or equal to 40. Write a program to find the sums of fourth powers of the first N numbers. Sample Input 2 Sample Output 17 Note : NPTEL follows gcc compiler which doesn't supports conio.h package and it always to be started as int main() and should return a integer value #include<stdio.h> int main() { int n,i,sum=0; scanf("%d",&n); if(n>=0&&n<=40) { for(i=1;i<=n;i++) { sum=sum+i*i*i*i; } printf("%d",sum);...

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NPTEL Programming in C - Pythagorean Triples

Three numbers form a Pythagorean triple if the sum of squares of two numbers is equal to the square of the third.  For example, 3, 5 and 4 form a Pythagorean triple, since 3*3 + 4*4 = 25 = 5*5 You are given three integers, a, b, and c. They need not be given in increasing order. If they form a Pythagorean triple, then print "yes", otherwise, print "no". Please note that the output message is in small letters. Sample Input 3 5 4 Sample Output yes Note : NPTEL follows gcc compiler which doesn't supports conio.h package and it...

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